Analysis

  • max time kernel
    96s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-01-2023 04:45

General

  • Target

    a6845c976c3fdeb0750f291d9f6da7aeb2261d25a3e1839af4c5b16944cbeba7.exe

  • Size

    60KB

  • MD5

    8e946f74815696883edc7ce2011bf251

  • SHA1

    8b3edd2008ce20c3a625223e6df981537580c6ba

  • SHA256

    a6845c976c3fdeb0750f291d9f6da7aeb2261d25a3e1839af4c5b16944cbeba7

  • SHA512

    4dc55e5a9e79b26ee21fa2d456942e93a1c4b9b0d0239b3610710f2171d850b0c1ddfff077cb8c75f49193c758b10880cdc638a8c6726dda441c18c6d1b51b7c

  • SSDEEP

    768:nlPeOQrHVHxeh+wdR11tTWt5fWDC7hP5Y2YW8QijsBIlmqNCt56HikCqMSdbN0zw:nlPeOaVRAPYfWEq6I4mmqLWqMSRN0

Malware Config

Signatures

  • FatalRat

    FatalRat is a modular infostealer family written in C++ first appearing in June 2021.

  • Gh0st RAT payload 1 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • Fatal Rat payload 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a6845c976c3fdeb0750f291d9f6da7aeb2261d25a3e1839af4c5b16944cbeba7.exe
    "C:\Users\Admin\AppData\Local\Temp\a6845c976c3fdeb0750f291d9f6da7aeb2261d25a3e1839af4c5b16944cbeba7.exe"
    1⤵
    • Checks computer location settings
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3048
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c del /q C:\Users\Admin\AppData\Local\Temp\a6845c976c3fdeb0750f291d9f6da7aeb2261d25a3e1839af4c5b16944cbeba7.exe
      2⤵
        PID:224

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3048-132-0x0000000010000000-0x0000000010028000-memory.dmp

      Filesize

      160KB

    • memory/3048-135-0x0000000004910000-0x000000000495E000-memory.dmp

      Filesize

      312KB

    • memory/3048-136-0x0000000004DD0000-0x0000000004F18000-memory.dmp

      Filesize

      1.3MB