Analysis

  • max time kernel
    107s
  • max time network
    191s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    27-09-2021 18:19

General

  • Target

    f5f3e9b43eec8bff47679ea02aec02edb979051e5fe21cc0f2bf6c919d10c49c.exe

  • Size

    535KB

  • MD5

    3f9a8ee266de6359f15b00036d5f68de

  • SHA1

    a4da83900d535107af9d3002da17304e90f82d98

  • SHA256

    f5f3e9b43eec8bff47679ea02aec02edb979051e5fe21cc0f2bf6c919d10c49c

  • SHA512

    1e701f93913d71486c547b93f7df649a041764d8064075d6e96633126eb91d9f91800ceaf0a7bf2ba2c9709713abe4793cb1c01e15cad4f664c0d64af7396843

Malware Config

Signatures

  • VenomRAT

    VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f5f3e9b43eec8bff47679ea02aec02edb979051e5fe21cc0f2bf6c919d10c49c.exe
    "C:\Users\Admin\AppData\Local\Temp\f5f3e9b43eec8bff47679ea02aec02edb979051e5fe21cc0f2bf6c919d10c49c.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1540
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks" /create /tn "DefenderCheckUpdate" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\f5f3e9b43eec8bff47679ea02aec02edb979051e5fe21cc0f2bf6c919d10c49c.exe" /rl HIGHEST /f
      2⤵
      • Creates scheduled task(s)
      PID:1624

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1540-60-0x00000000010B0000-0x00000000010B1000-memory.dmp

    Filesize

    4KB

  • memory/1540-62-0x00000000767B1000-0x00000000767B3000-memory.dmp

    Filesize

    8KB

  • memory/1540-63-0x0000000000BA0000-0x0000000000BA1000-memory.dmp

    Filesize

    4KB