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    Rewterz Threat Alert – Hard Pass: Declining APT34’s Invite to Join Their Professional Network

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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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    Annual Threat Intelligence Report 2022
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  • 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.

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    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.
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    Read More about XDR

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    • Rewterz XDR
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    • Rewterz Threat Intelligence
    Rewterz Threat Alert – Hard Pass: Declining APT34’s Invite to Join Their Professional Network

    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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    • SIEM Gap Analysis
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    Resources

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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
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Rewterz
Rewterz Threat Advisory – CVE-2019-7590 – Johnson Controls exacqVision Server Vulnerability
July 19, 2019
Rewterz
Rewterz Threat Advisory – CVE-2019-13345 – Squid Multiple Cross Site Scripting Vulnerabilities
July 19, 2019

Rewterz Threat Alert – Hard Pass: Declining APT34’s Invite to Join Their Professional Network

July 19, 2019

Severity

High

Analysis Summar

A phishing campaign conducted by APT34, an Iranian-nexus threat actor. Three key attributes caught with this particular campaign:

  • Masquerading as a member of Cambridge University to gain victims’ trust to open malicious documents,
  • The usage of LinkedIn to deliver malicious documents,
  • The addition of three new malware families to APT34’s arsenal.

A backdoor that communicates with a single command and control (C2) server using HTTP GET and POST requests, TONEDEAF supports collecting system information, uploading and downloading of files, and arbitrary shell command execution. When executed, this variant of TONEDEAF wrote encrypted data to two temporary files – temp.txt and temp2.txt – within the same directory of its execution.

Retracing the steps preceding exploit detection, it was identified that System.doc was dropped by a file named ERFT-Details.xls. Combining endpoint- and network-visibility, to correlate that ERFT-Details.xls originated from the URL http://www.cam-research-ac[.]com/Documents/ERFT-Details.xls. Network evidence also showed the access of a LinkedIn message directly preceding the spreadsheet download.

Impact

  • Arbitrary shell command execution
  • Exposure of sensitive information

Indicators of Compromise

IP(s) / Hostname(s)

185[.]15[.]247[.]154

URLs

  • http[:]//185[.]15[.]247[.]154/free/second[.]php
  • http[:]//185[.]15[.]247[.]154/free/uploadFiles/
  • http[:]//offlineearthquake[.]com/
  • http[:]//offlineearthquake[.]com/download?id=bom&n=000
  • http[:]//offlineearthquake[.]com/download?id=bov&n=000
  • http[:]//offlineearthquake[.]com/download?id=LXq&n=000
  • http[:]//offlineearthquake[.]com/file/6H3/P86[.]dll?id=Zwh&n=000
  • http[:]//offlineearthquake[.]com/upload?id=bwd&n=
  • http[:]//www[.]cam-research-ac[.]com/Documents/Cambridge_employment_form[.]zip
  • offlineearthquake[.]com
  • www[.]cam-research-ac[.]com
  • c[.]cdn-edge-akamai[.]com
  • cam-research-ac[.]com

Malware Hash (MD5/SHA1/SH256)

  • 021a0f57fe09116a43c27e5133a57a0a
  • 2175299818a00a5dbcc1d96c3ef4cdca4e94052a22f08fcf8e982d0548a7bff0
  • 50fb09d53c856dcd0782e1470eaeae35
  • 6eca9c2b7cf12c247032aae28419319e
  • 9fff498b78d9498b33e08b892148135f
  • b338baa673ac007d7af54075ea69660b
  • caf418cbf6a9c4e93e79d4714d5d3b87
  • d8abe843db508048b4d4db748f92a103

Remediation

  • Block all threat indicators at your respective controls.
  • Always be suspicious about emails sent by unknown senders.
  • Never click on the links/attachments sent by unknown senders.

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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