logo_SVG-01
✕
  • Platform
    • Rewterz XDR
    • Rewterz Defense
    • Rewterz Threat Intelligence
    • Managed Security Services
    • Managed Penetration Testing
  • Services
    • Assess
      • Compromise Assessment
      • Advanced Persistent Threats Assessment
      • Penetration Testing
      • Secure Architecture Design & Review
      • Red Team Assessment
      • Purple Team Assessment
      • Social Engineering
      • Source Code Review
    • Transform
      • SOC Consultancy
      • SOC Maturity Assessment
      • SOC Model Evaluation
      • SOC Gap Analysis
      • SIEM Gap Analysis
      • SIEM Optimization
      • SOC Content Pack
    • Train
      • Simulated Cyber Attack Exercise
      • Tabletop Exercise
      • Security Awareness and Training
    • Respond
      • Incident Analysis
      • Incident Response
  • Solutions
  • Resources
    • Blogs
    • Press Releases
    • Threat Insights
      • Threat Intelligence Reports
      • Threat Advisories
      • Monthly Threat Insights
  • Why Rewterz?
    • About Us
    • Careers
    • Contact
logo_SVG-01
  • Platform
    xdrLogo
    center_new
    Read More about XDR

    Platform

    • Rewterz XDR
    • Rewterz Defense
    • Rewterz Threat Intelligence
    Rewterz Threat Alert – Ursnif Distributed Through Reply-Chain Attacks to Look Legitimate

    Managed Security Services

    • Managed Security Monitoring
    • Remote SOC
    • Onsite SOC
    • Hybrid SOC

    Managed Penetration Testing

    Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.

  • Services

    Assess

    • Compromise Assessment
    • APT Assessment
    • Penetration Testing
    • Architecture Design & Review
    • Red Team Assessment
    • Purple Team Assessment
    • Social Engineering
    • Source Code Review

    Transform

    • SOC Consultancy
    • SOC Maturity Assessment
    • SOC Model Evaluation
    • SOC Gap Analysis
    • SIEM Gap Analysis
    • SIEM Optimization
    • SOC Content Pack

    Train

    • Simulated Cyber Attack Exercise
    • Tabletop Exercise
    • Security Awareness and Training

    Respond

    • Incident Analysis
    • Incident Response
  • Solutions
  • Resources

    Resources

    • Blog
    • Press Releases
    March 22, 2023
    March 22, 2023
    Rewterz Threat Alert – Mekotio Banking Trojan aka Melcoz – Active IOCs
    Severity Medium Analysis Summary Mekotio is a banking trojan that targets users in Latin America and Europe. It is primarily distributed via phishing emails and infected […]
    March 22, 2023
    March 22, 2023
    Rewterz Threat Update – Cyber Threat Intelligence Advisory – 23rd March Pakistan Day
    Analysis Summary Overview – 23rd Mar – A Big Day –  As we approach the 23rd of March, Pakistan Day, organizations and individuals should be aware […]
    March 22, 2023
    March 22, 2023
    Rewterz Threat Advisory -Multiple Jenkins Products Vulnerabilities
    Severity High Analysis Summary CVE-2023-28684 CVSS:7.1 Jenkins remote-jobs-view-plugin Plugin could allow a remote authenticated attacker to obtain sensitive information, caused by improper handling of XML external […]

    Threat Insights

    16
    pdf-file (1)
    Annual Threat Intelligence Report 2022
    • Threat Advisories
    • Monthly Threat Insights
    • Threat Intelligence Reports
  • Why Rewterz?

    About Us

    Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.

    Read More

    play_btn_Smallplay_btn_hover_Small
    leadership

    Our Leadership

    Our leadership team brings together years of knowledge and experience in cybersecurity to drive our company's mission and vision. Our team is passionate about delivering high-quality products and services, leading by example and assisting our clients in securing their organization’s environment.
    help

    CSR

    At Rewterz, we believe that businesses have a responsibility to impact positively and contribute to the well-being of our communities as well as the planet. That's why we are committed to operating in a socially responsible and sustainable way.

    Connect with Us

    • Contact
    • Careers
Get in Touch
logo_SVG-01
  • Platform
    xdrLogo
    center_new
    Read More about XDR

    Platform

    • Rewterz XDR
    • Rewterz Defense
    • Rewterz Threat Intelligence
    Rewterz Threat Alert – Ursnif Distributed Through Reply-Chain Attacks to Look Legitimate

    Managed Security Services

    • Managed Security Monitoring
    • Remote SOC
    • Onsite SOC
    • Hybrid SOC

    Managed Penetration Testing

    Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.

  • Services

    Assess

    • Compromise Assessment
    • APT Assessment
    • Penetration Testing
    • Architecture Design & Review
    • Red Team Assessment
    • Purple Team Assessment
    • Social Engineering
    • Source Code Review

    Transform

    • SOC Consultancy
    • SOC Maturity Assessment
    • SOC Model Evaluation
    • SOC Gap Analysis
    • SIEM Gap Analysis
    • SIEM Optimization
    • SOC Content Pack

    Train

    • Simulated Cyber Attack Exercise
    • Tabletop Exercise
    • Security Awareness and Training

    Respond

    • Incident Analysis
    • Incident Response
  • Solutions
  • Resources

    Resources

    • Blog
    • Press Releases
    March 22, 2023
    March 22, 2023
    Rewterz Threat Alert – Mekotio Banking Trojan aka Melcoz – Active IOCs
    Severity Medium Analysis Summary Mekotio is a banking trojan that targets users in Latin America and Europe. It is primarily distributed via phishing emails and infected […]
    March 22, 2023
    March 22, 2023
    Rewterz Threat Update – Cyber Threat Intelligence Advisory – 23rd March Pakistan Day
    Analysis Summary Overview – 23rd Mar – A Big Day –  As we approach the 23rd of March, Pakistan Day, organizations and individuals should be aware […]
    March 22, 2023
    March 22, 2023
    Rewterz Threat Advisory -Multiple Jenkins Products Vulnerabilities
    Severity High Analysis Summary CVE-2023-28684 CVSS:7.1 Jenkins remote-jobs-view-plugin Plugin could allow a remote authenticated attacker to obtain sensitive information, caused by improper handling of XML external […]

    Threat Insights

    16
    pdf-file (1)
    Annual Threat Intelligence Report 2022
    • Threat Advisories
    • Monthly Threat Insights
    • Threat Intelligence Reports
  • Why Rewterz?

    About Us

    Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.

    Read More

    play_btn_Smallplay_btn_hover_Small
    leadership

    Our Leadership

    Our leadership team brings together years of knowledge and experience in cybersecurity to drive our company's mission and vision. Our team is passionate about delivering high-quality products and services, leading by example and assisting our clients in securing their organization’s environment.
    help

    CSR

    At Rewterz, we believe that businesses have a responsibility to impact positively and contribute to the well-being of our communities as well as the planet. That's why we are committed to operating in a socially responsible and sustainable way.

    Connect with Us

    • Contact
    • Careers
Get in Touch
Rewterz
Rewterz Threat Alert – Vulnerable Corporate VPNs Exploited in the Wild
October 18, 2019
Rewterz
Rewterz Threat Advisory – CVE-2019-13537 – AVEVA Vijeo Citect and Citect SCADA Server Side Crash Vulnerability
October 21, 2019

Rewterz Threat Alert – Ursnif Distributed Through Reply-Chain Attacks to Look Legitimate

October 18, 2019

Severity

High

Analysis Summary

Ursnif is being distributed using Reply-Chain attacks and password protected .zip files across multiple clients. Inside of the .zip files will be documents containing macros which execute and reach out to a Ursnif distribution server to download the payload.

The Reply-Chain attacks are carried out by infecting one victim, accessing their emails, locating an ongoing email chain, and then injecting their malicious file into the email chain. This is very effective, because it appears to come from a trusted source.

Additionally, Ursnif demonstrates some fileless capabilities. It installs itself in a Registry Key which will contain powerscript/mshta commands in order to pull down and re-execute itself. As everything else is done in memory, the file is not resident on the HDD, but instead exists in the Registry.

Impact

  • Information Theft
  • Credential Theft

Indicators of Compromise

Domain Name

  • ztoy[.]top
  • sizfjalenk51[.]com
  • v25brigittet[.]com
  • k23ueugeniay[.]com
  • qmiller[.]club
  • bepkristagrant[.]top
  • vipresleynz[.]com
  • jt23932[.]xyz
  • jecdkeay[.]com

Hostname

  • ww2[.]vipresleynz[.]com
  • ww3[.]vipresleynz[.]com
  • ww4[.]vipresleynz[.]com

SH256

  • a066cf151d234f9adf814390295084a96cb50adfdc4b7fb513ecd9c0cf9e0450
  • 26452b3a29c72e59201508f944393bd80269a845853dbb43b2cf378ecc9562eb
  • 4357f07f5f3c1538212c607f0dab348274270bc9db458e22020b3d36741ad7dc
  • 77bccfc252dcf4ace4243f15e73f396a01a9d6c4b1ea533b5c45a2c399ca0948
  • d1c95a48e268f0421dca29f80d630d48d581c08c184e31c5604e8acb982f3111
  • eb28767989e946cd0d7395e2164a5269c2f9a8185936367dd90047cbeb3778e1
  • 22a0ce688275851d810b8ea930bcdfb9e5e2fa78c7814d6f07f6dc104bea055f
  • 23e51ff862fa08c2bbb969eb4fa78ebd28dc07f55b90ab2433fa2078ac3a8ca4
  • 23e70bda780d04bc3f94b7d58918f96e3d89153e6c44b9658589f4bcb0bb4d04
  • 46012e839c34e9d75f0aea81cb1e244167a954470dea09c9299c5af0d0d26f5e
  • 4cabf52beeb0818c1965b33dce4e8703c80c1347e6a252218d1fbba8590bd6f7
  • 6968f026d732878c997d26ae55d3429952f1d6f7cb07b6ff6d1a4a99c4035498
  • 86e1eed479af35827e6287eb319e49d404edbe76631503337381357832c2b8b4
  • a7683dd18109b63e5b2365da1f64ec4d436a66857f48f4f7fe78fb01b5c901bd
  • c4234865023f7c6dd8f5a8c3c2d73295c2f9119314f90afeda3b110548db0810
  • ff1f4197de5db64bc8228d3197c8936813a733488445c73dea441d2abdd64e94

Source IP

  • 194[.]87[.]146[.]138
  • 200[.]63[.]47[.]3
  • 162[.]218[.]210[.]178

URL

  • http[:]//v25brigittet[.]com/images/FaQ55z3K_2FGIz9mghFXGxY/XDRZdpWTAS/9ahnn5BzLR5PpDpAm/WiKZ6aYR4_2B/S0 UCb4onYzq/DL2_2FAbc9UhQP/k9yOAnyDaKbAUY6Yrt0NU/FlKtTIMZCIxNM7TJ/ibGnkcgQ0GV88Yt/UfAM8WmF/GWpPzth5/D[.]avi
  • http[:]//bepkristagrant[.]top/ https[:]//bepkristagrant[.]top/
  • http[:]//jt23932[.]xyz http[:]//jt23932[.]xyz/
  • http[:]//jt23932[.]xyz/favicon[.]ico http[:]//jt23932[.]xyz/images/
  • http[:]//jt23932[.]xyz/images/9LYWeKMmRFjkUr/2yEx9G126aQqnujMKQcBo/uQ1ikRI4VnE6cmVy/Anr9O2xeyvVnGvs/J_2F 46IQ79Fnea4bBU/9ectIYcH4/uo1XoZZ_2FmbOeRh8REh/2m3UW3njmnm1zzkFkiS/IX9kEhoZhlfc8nV8Ad/vPJN[.]avi
  • http[:]//jt23932[.]xyz/images/RxDlsYgPclDm/mqmfEqzqKjU/39Ncxb9eU0fl7o/C9mvjBZY8EQB642Km8m9f/2Tqq5gBcd8pI Oh4b/4Oppw4YTExA09jl/CgKC56zy3uZnhPlyyZ/zYsloLWl_/2Bsf_2Bk0oF6aNCywlqo/T52icgZkU/rmhHg0I2/g[.]avi
  • http[:]//jt23932[.]xyz/images/SR9KKK9mDa/CYAQnUAntVJznUnXf/_2BQdkCeNpg_/2FpewJelxLV/g2EQ8hDWhaWF55/142G XtoTK1rHMk7boir1U/g_2F4DD4XgzUQ3dt/muqK8hz3FPasq7P/nMoP8m8We53yEvHTFZ/uY9PHuk47/XmNdOf_2ByIAx/go[.] avi
  • http[:]//jt23932[.]xyz/images/btttd1nc5u7m1gfwri5db7s/ql9d4zkjfc/zhqmgkovvs3xxqiug/0tzfayrhzta6/3dlaujahlvf/7h3j9 xflc5wwvk/8kcy4y5kcfojjg7emmrbc/paxmnq9zlq5vroke/wccywxnn8fihgoi/2zrbq74sa/xi[.]avi
  • http[:]//jt23932[.]xyz/images/ebwNxFNQkj_2F/dEGrQ8o2/foqH3x_2FKtoXInps4FKDqa/AVLOqWZ41t/kyDBJQ8z31DYibt99/ p8e3aLUvVXBS/tj7eMTvVhzH/BdjW2jkFXH05ES/aUg6n_2BsUr_2F_2Bf4Kt/bab0tY_2FFXAw7Do/LDPJCc65/fiZ8g8Ii/Q[.]avi
  • http[:]//jt23932[.]xyz/images/hPGryY8pEOstgn/jz3kf_2FjvCIp3FqvnPlh/Ss_2FxBEGREbS9bf/ODC7dYy12zmlbsb/XW8tV0T 7M1VuyTx5Ce/07ZYk52q0/CDkE8F4rqVVw53JiOv43/Sl2ZdbWokdCgTERFrU7/KDcIlBMftn/diUqR0bpy/EB5[.]avi
  • http[:]//jt23932[.]xyz/images/lzUeA7sRaDrQrPuB_2F/DJCz2MoH33d6BseYeU7a5X/UutSJOG_2Bp2l/1NmApyF4/XLD3PiHkk WnqobusQwka7_2/BY9WJhOHsd/fgqsXortDMWtUI8cD/FirgP_2FpHB2/mBNQ0ByNfwB/svz0ej7L_2BfO9/8OEcl8_2FcHn/v[.] avi
  • http[:]//jt23932[.]xyz/images/qspMCJDXidt_/2BCIImd5R9M/m9GqPIJz3CkizN/HMFLLfFpR2ta8pSkKO4Tv/f4stJe_2B5wODbg A/j5IyDrqcGwuv0Xk/Mig8no2z2aqitDPuhH/sCsO7wnfp/NeDw2yDY_2F6nAuOHTtG/hMgAzVpxzRnkhe5/Rklix[.]avi http[:]//vipresleynz[.]com/
  • http[:]//vipresleynz[.]com/images/X7LDnOaa7nZFoOROAJ/VoZbaW4tF/gZO12QOrj_2B0vhCYjTm/KXyTJ0qbSF1AUPJsMHD/ b5T_2BUXIgrmgsrNtsIbxY/dmHcPDAuaOFSb/WTnpLzYo/gM_2Fo9_2BToboDQjt9cscc/jNC_2FiSnm/McvIhXuDY0M
  • http[:]//vipresleynz[.]com/images/lc5W4GeK5/pMcTTKyonUlk0TlYataQ/9Cpm8IXUiZvRl2NPeOm/pDjk2I7uTIJvOqDSADYo6 a/cw1B2ZsSzPkya/rY2HLtCg/CE6XyqTO8jGNiv_2B4GIkvv/81qVnJvFBv/WnIuEM5L0qYzefsJx
  • http[:]//vipresleynz[.]com/images/lc5W4GeK5/pMcTTKyonUlk0TlYataQ/9Cpm8IXUiZvRl2NPeOm/pDjk2I7uTIJvOqDSADYo6 a/cw1B2ZsSzPkya/rY2HLtCg/CE6XyqTO8jGNiv_2B4GIkvv/81qVnJvFBv/WnIuEM5L0qYzefsJx/7vvLKISr/51y[.]avi
  • http[:]//vipresleynz[.]com/images/rE6bUsfRTah_2Bvt/t3ehZrbOuNAdI6_/2FpNRfRL7PGPwJs5Jp/5nMIqH1ja/5sgDepHdr2Oa tdrcS2LX/Ga_2F0e_2Fux5Vhw64n/jAy8OdZdUfisGzsuvTP7sB/HrxCSUcNWapiV/xyEilPQv/8YpUli1i_2F http[:]//ww2[.]vipresleynz[.]com/?sub1=8a137de0-e84e-11e9-b443-6fc1e91426c4
  • http[:]//ww3[.]vipresleynz[.]com/
  • http[:]//ww4[.]vipresleynz[.]com/ https[:]//vipresleynz[.]com/
  • http[:]//jecdkeay[.]com/ https[:]//jecdkeay[.]com/
  • http[:]//sizfjalenk51[.]com http[:]//sizfjalenk51[.]com/
  • http[:]//sizfjalenk51[.]com/favicon[.]ico
  • http[:]//sizfjalenk51[.]com/images
  • http[:]//sizfjalenk51[.]com/images/472HFxZ5l4tHvgRl3V/A8Zwc5iiD/z7Hpom6i0eSZfehkwwO9/idWkaXCYz4tD3jwgjQn/_2 FlBWWURQCi0OB8d8T1GQ/aKp874_2F_2FK/Eu1f0RrN/LUEZKLleIAaDsFHtf2_2Bg6
  • http[:]//sizfjalenk51[.]com/images/472HFxZ5l4tHvgRl3V/A8Zwc5iiD/z7Hpom6i0eSZfehkwwO9/idWkaXCYz4tD3jwgjQn/_2 FlBWWURQCi0OB8d8T1GQ/aKp874_2F_2FK/Eu1f0RrN/LUEZKLleIAaDsFHtf2_2Bg6/wsoUB5oioM/zD5hJDe3X/0yoD9po[.]av i
  • http[:]//sizfjalenk51[.]com/images/NJmri2_2BHm80N/jV9E13yKOb3kDRyPsOhqy/4L214bCB4CIiCNwx/1cyqdTDB0ZcmPy4 /oNzpFMQCpuOVutlUy0/EJfchMJQc/VYhq3hje6X8tfhHUhqZH/wDa51WD9QurdBuQwCF9/BAhSAyvC3L/CTqbg91ZP/9[.]avi
  • http[:]//sizfjalenk51[.]com/images/P5V7KNJc/qteexShBbsKgBQgofOXRwwj/07pewQrrjr/FTYuugJWn44JKiPSi/z2S4kpdTZAk V/TOJlVViQlBm/MDtevqpYSYr_2B/hCIFhnQ9iRbhWRNl9lSeE/d_2FnWgqriSkqVmW/eo4D65y6_2BM2ZT/MVT2BNHJ/R[.]avi
  • http[:]//sizfjalenk51[.]com/images/Z7BhGdVjU8AWlckbQ/PZZLxG5QiZow/bQk7UvwwbS1/NSAJoOjOvdHq5e/ddEPvbqluK1 XsBKn5tp2N/YLIRKRZYv1_2BG2R/BMiL3cFVu9nHGJO/zW9fIGYwRxqSRhxRBU/QnwxdJUwt/YnQwFhSnW68K/bQ6fzOq[.]avi
  • http[:]//sizfjalenk51[.]com/images/_2BQlDy3SgkoRBGGJ_2B/JjRFjohMTQ3h7vKDHFC/_2Bm4xcN8TMUBoMkRlJXyp/nTUI7P WhEmox_/2BoQzywA/SuNYm0z_2Boa7VWM4xZhO3m/yNbVTY_2BW/1BR0uhTn3vP2G8C5Y/6rtEjDWbIlQ7/lKkZHhSvz/kuX Jqk6L/q[.]avi
  • http[:]//sizfjalenk51[.]com/images/he2XKahi7XFvWbEFX_2F1M/KpCebmTr_2FJ4/orwwY_2F/OF2_2FoyY15SNTGJz_2Fn8O/0 lLebBIohJ/U6X5YeviGrx64y6u2/GdgzEivYR6p_/2BiGhnWXrk7/uG9Oyl22apWEAc/8RDS5ZLbXX3I53c5UHMNB/Op1FE_2F8 m/bw8[.]avi
  • http[:]//sizfjalenk51[.]com/images/j02HquE_2/F7Z2C2XRbtJDZ_2FNLI7/oLjEEJPNX1Mjjgsv8tu/88Hom2vL0sINbFa50GRWF X/k_2FTCfHfqvV2/gU5Y9o3F/lqD8NZpmLI1HfkNb_2BNnPW/r3z5xwHBIY/M60wig2JpZcn58sw0/2iZy_2F9umpI/wtrr69o7Xh G/Dhwrsxcu/ytgpd7Mu/9[.]avi
  • http[:]//sizfjalenk51[.]com/images/jZ8vuoYPNX3MN33d72lzE/xiq9gcYVnssjHnJ3/EsEm43RqnxUB7L4/gXNmpAlnd5_2B8El 2S/7nVphu2an/EKoCTOkUK24bLkk2GyLO/LMqImM_2BNx0i22IKSr/vNMNRW3m_2Bk8E4Ya4yhUc/GSOHXkiSOlz0n/mvU[.] avi
  • http[:]//sizfjalenk51[.]com/images/lo7ZqFtAZKahzi4gSL6/W7DIyomPQ48o1ou5in0zOH/HqPl6_2B1jveG/b556JmSF/4bWa WkGw6bC102wt3s0nt5a/eglp4vYKKX/V3apC1DVEO1B3bc1u/kDwM7qOAp_2F/vIhU_2FsY_2/FBUcR_2Ff8Urg_/2FWnC1IlU_ 2Fsg/E[.]avi
  • http[:]//sizfjalenk51[.]com/images/qIDJWm6lgwj8JFWS/8dWI2kqr7kKIMsR/mawnwkdCvjhkfzm55n/8Y2Ix5H_2/Ba0_2FEGE TflUpoCus4U/fLkg_2BfQn39um2goch/2_2FldabIh6zVKiJSF4Ifm/RQvG93l2arQjJ/qsGgmgnx/x_2B3xDrCa3ZVrIkYG4Qgs2/oj 0XTNsh2Mcf/N51uSJ[.]avi

Remediation

  • Block the threat indicators at their respective controls.
  • Do not download email attachments even if they’re received from legitimate sources, without first confirming from the sender.
  • Do not enable macros for downloaded files unless they are extremely necessary.

Platform

  • Rewterz XDR
  • Rewterz Defense
  • Rewterz Threat Intelligence

Managed Security Services

  • Managed Security Monitoring
  • Remote SOC
  • Onsite SOC
  • Hybrid SOC

Assess

  • Compromise Assessment
  • APT Assessment
  • Penetration Testing
  • Architecture Design & Review
  • Red Team Assessment
  • Purple Team Assessment
  • Social Engineering
  • Source Code Review

Transform

  • SOC Consultancy
  • SOC Maturity Assessment
  • SOC Model Evaluation
  • SOC Gap Analysis
  • SIEM Gap Analysis
  • SIEM Optimization
  • SOC Content Pack

Train

  • Simulated Cyber Attack Exercise
  • Tabletop Exercise
  • Security Awareness and Training

Respond

  • Incident Analysis
  • Incident Response

Threat Insights

  • Threat Advisories
  • Monthly Threat Insights
  • Threat Intelligence Reports

Resources

  • Blog
  • Press Releases

Connect With Us

  • Contact
  • Careers
COPYRIGHT © REWTERZ. ALL RIGHTS RESERVED.
Get a Demo