Analysis

  • max time kernel
    153s
  • max time network
    202s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 14:10

General

  • Target

    61a809335489e741abe00dc2a164106eb6b543413473645dd2461501ab1e7417.exe

  • Size

    607KB

  • MD5

    3c2ff7ca092e5f85a643718b4b8fd8d5

  • SHA1

    665bd7cc6ee476d016a23d98c21d8d34d0e7c865

  • SHA256

    61a809335489e741abe00dc2a164106eb6b543413473645dd2461501ab1e7417

  • SHA512

    5d48e9c8be4e0d76c52ec58a58968256f8356ec7c9082e178bfec5502e007037642295585e21830c42bca2c9845e61225030fd116d9231c4e446ba6fb10b27d8

  • SSDEEP

    6144:Zomzg7QVd7KZMuczJeeo0xdeeS+vtVZzNsYEwyVilDN89tEbfM0p9HajmFZDor96:vzgkVdKZKZ1Q6oYgilD4XOH9Dm9po

Malware Config

Signatures

  • Imminent RAT

    Remote-access trojan based on Imminent Monitor remote admin software.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops desktop.ini file(s) 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\61a809335489e741abe00dc2a164106eb6b543413473645dd2461501ab1e7417.exe
    "C:\Users\Admin\AppData\Local\Temp\61a809335489e741abe00dc2a164106eb6b543413473645dd2461501ab1e7417.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5012
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\svchost\svchost.exe,explorer.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4288
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\svchost\svchost.exe,explorer.exe"
        3⤵
        • Modifies WinLogon for persistence
        PID:1964
    • C:\Users\Admin\AppData\Local\Temp\61a809335489e741abe00dc2a164106eb6b543413473645dd2461501ab1e7417.exe
      "C:\Users\Admin\AppData\Local\Temp\61a809335489e741abe00dc2a164106eb6b543413473645dd2461501ab1e7417.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1000

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\61a809335489e741abe00dc2a164106eb6b543413473645dd2461501ab1e7417.exe

    Filesize

    607KB

    MD5

    3c2ff7ca092e5f85a643718b4b8fd8d5

    SHA1

    665bd7cc6ee476d016a23d98c21d8d34d0e7c865

    SHA256

    61a809335489e741abe00dc2a164106eb6b543413473645dd2461501ab1e7417

    SHA512

    5d48e9c8be4e0d76c52ec58a58968256f8356ec7c9082e178bfec5502e007037642295585e21830c42bca2c9845e61225030fd116d9231c4e446ba6fb10b27d8

  • memory/1000-135-0x0000000000000000-mapping.dmp

  • memory/1000-136-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1000-138-0x0000000074BF0000-0x00000000751A1000-memory.dmp

    Filesize

    5.7MB

  • memory/1000-140-0x0000000074BF0000-0x00000000751A1000-memory.dmp

    Filesize

    5.7MB

  • memory/1964-139-0x0000000000000000-mapping.dmp

  • memory/4288-134-0x0000000000000000-mapping.dmp

  • memory/5012-132-0x0000000074BF0000-0x00000000751A1000-memory.dmp

    Filesize

    5.7MB

  • memory/5012-133-0x0000000074BF0000-0x00000000751A1000-memory.dmp

    Filesize

    5.7MB