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    Rewterz Threat Alert – AgentTesla Information Stealer – Fresh IoCs

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    March 25, 2023
    March 25, 2023
    Rewterz Threat Alert – GandCrab or .CRAB Ransomware – Active IOCs
    Severity Medium Analysis Summary GandCrab – a ransomware-as-a-service variant – was discovered in early 2018. At least five versions of GandCrab have been created since its […]
    March 25, 2023
    March 25, 2023
    Rewterz Threat Alert – NJRAT – Active IOCs
    Severity Medium Analysis Summary NjRat is a Remote Access Trojan, which is found leveraging Pastebin to deliver a second-stage payload after initial infection. There are multiple […]
    March 24, 2023
    March 24, 2023
    Rewterz Threat Advisory – CVE-2023-20113 – Cisco SD-WAN vManage Software Vulnerability
    Severity Medium Analysis Summary CVE-2023-20113  Cisco SD-WAN vManage Software is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input. By persuading an authenticated […]

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    Read More about XDR

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    • Rewterz XDR
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    Rewterz Threat Alert – AgentTesla Information Stealer – Fresh IoCs

    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
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    March 25, 2023
    March 25, 2023
    Rewterz Threat Alert – GandCrab or .CRAB Ransomware – Active IOCs
    Severity Medium Analysis Summary GandCrab – a ransomware-as-a-service variant – was discovered in early 2018. At least five versions of GandCrab have been created since its […]
    March 25, 2023
    March 25, 2023
    Rewterz Threat Alert – NJRAT – Active IOCs
    Severity Medium Analysis Summary NjRat is a Remote Access Trojan, which is found leveraging Pastebin to deliver a second-stage payload after initial infection. There are multiple […]
    March 24, 2023
    March 24, 2023
    Rewterz Threat Advisory – CVE-2023-20113 – Cisco SD-WAN vManage Software Vulnerability
    Severity Medium Analysis Summary CVE-2023-20113  Cisco SD-WAN vManage Software is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input. By persuading an authenticated […]

    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
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Rewterz
Rewterz Threat Alert – New Malware Abusing Google and Facebook Services
December 14, 2020
Rewterz
Rewterz Threat Alert – Dark Caracal Targets Multiple Sectors with Bandook Malware
December 15, 2020

Rewterz Threat Alert – AgentTesla Information Stealer – Fresh IoCs

December 15, 2020

Severity

Medium

Analysis Summary

A new AgentTesla campaign is seen targeting victims with malspam. AgentTesla is known for stealing data from different applications on victim machines, such as browsers, FTP clients, and file downloaders. Agent Tesla collects personal information from the victim’s machine, steals data from the victim’s clipboard, can log keystrokes, capture screenshots and access the victim’s webcam. It can kill running analysis processes and AVsoftware. The spyware also performs basic actions to check whether it is running on a virtual machine or in debug mode, in an attempt to hide its capabilities and actions from researchers. All the data it obtains is sent in encrypted form via SMTP protocol.  
This current Agent Tesla campaign seems to be using email attachments with the common phishing themes of invoice, quotation request, new order, shipping advice, etc. These malicious attachments when downloaded and executed will infect the target system with Agent Tesla. 

Impact

  • Credential Theft
  • Data Exfiltration
  • Information Disclosure
  • Detection Evasion

Indicators of Compromise

Filename

  • specs datasheet[.]exe
  • REQUEST23341234[.]exe

MD5

  • f8674c0b7be761d12ace57039b6688fd
  • f3511f0df79889c36525c17db27c51b4
  • 48c9149831946bc0dcec0a6a66d159b1
  • 5cf5ee802d8c13debe04c707489da0b8
  • 3ddf9b5d91a3d979e6477e789ece05b7
  • 666cb0fddb4cf8633c56a4ccaf69500b
  • 666cb0fddb4cf8633c56a4ccaf69500b

SHA-256

  • 4901e545f909725ea2329a68aab1875a244404f379a3a66bbc289fc032dab053
  • 9827198753b9ab546a2789690c63af319a81b61e203486abaee027b304b186ad
  • cba307ef1a3a55b09513b978a8e592ff2229a30de65b799e081fb1dbea836256
  • 50c08700245c10a4f452c302e09777a88e8d88fac7fa5395756c2b9559f76357
  • a944ba68cf53d0b13e6ce99e2e90db74cba352c36593aeeef21d001ad98f3d6b
  • 8b26cdcf75986872f5d68ea2e7d46eec7b7e085ce0473b1ec8a4292beaaa276f
  • 108885ad12de3e0c6d7e712eb48bc8c4571b1be01ca4a37f9857f61d7a6d591a

SHA1

  • d9b8d52c23d59ffe04e6df665c47fa639c682725
  • 116e9800385efcf9b13169b7922fdd606f0e3df8
  • fb56eb1fa9ac5fd4b54065604fd17845e8ce74a6
  • 5b14d0c4467ee7022661c35966a2620dfc76152a
  • f31b1b56f7b981c4698bb74731eec7f9a1273fde
  • fdcf33284d5da54a4f7cf918f2ae7b1b2898ced6
  • fdcf33284d5da54a4f7cf918f2ae7b1b2898ced6

Remediation

  • Block the threat indicators at their respective controls. 
  • Do not download files attached in untrusted emails. 

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
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