Analysis

  • max time kernel
    152s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2022, 06:27

General

  • Target

    e70645506eaf4eb30b2fb137ad33677c6a28ea53f1b7272cc730ec33b0d99180.exe

  • Size

    323KB

  • MD5

    6055f395ae635cbc8a24ddbec0b5b98b

  • SHA1

    30267fe0676c3b0bd1a771c3b8633dab8bc7e66d

  • SHA256

    e70645506eaf4eb30b2fb137ad33677c6a28ea53f1b7272cc730ec33b0d99180

  • SHA512

    135302c08388ef11b425917151f95056bd59733f37a84d809de66c97319124dabeb50058702b9a3e68865705ef9ee80e070273f7183be3d3799c9aeba7768982

  • SSDEEP

    6144:54BfhVeQU+OlJd3ZBmFT05EF5O+dDsXB2JASeJ1hbZOEzza:8LeQdOlredaEm+dYJhbI

Malware Config

Extracted

Family

darkcomet

Botnet

Nieuw

C2

aqo.no-ip.info:1605

Mutex

DC_MUTEX-F54S21D

Attributes
  • gencode

    ENg71f44tjid

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • UPX packed file 7 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e70645506eaf4eb30b2fb137ad33677c6a28ea53f1b7272cc730ec33b0d99180.exe
    "C:\Users\Admin\AppData\Local\Temp\e70645506eaf4eb30b2fb137ad33677c6a28ea53f1b7272cc730ec33b0d99180.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4416
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4364
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\UyRjQ.vbs"
      2⤵
        PID:4188

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\UyRjQ.vbs

            Filesize

            402B

            MD5

            eff7b7b249d68b6b5e35820a3dba3879

            SHA1

            ed0395da8a62572aba32740f4d09899eaca22eb0

            SHA256

            82af7867bc976ee9af0107ccc5d20333b315ba43d6986c4b10eb3ac505492dd8

            SHA512

            2f13dee7ab491a127a51d2f685091d1a66330df2e9daf874bc42ad013738789fa5ed47ef8ba93e8b261c7d3273f2d107acc8e461803a40a001a7201fec97017a

          • memory/4364-134-0x0000000000400000-0x00000000004BA000-memory.dmp

            Filesize

            744KB

          • memory/4364-135-0x0000000000400000-0x00000000004BA000-memory.dmp

            Filesize

            744KB

          • memory/4364-137-0x0000000000400000-0x00000000004BA000-memory.dmp

            Filesize

            744KB

          • memory/4364-138-0x0000000000400000-0x00000000004BA000-memory.dmp

            Filesize

            744KB

          • memory/4364-142-0x0000000000400000-0x00000000004BA000-memory.dmp

            Filesize

            744KB

          • memory/4364-143-0x0000000000400000-0x00000000004BA000-memory.dmp

            Filesize

            744KB

          • memory/4364-144-0x0000000000400000-0x00000000004BA000-memory.dmp

            Filesize

            744KB

          • memory/4416-132-0x0000000074BF0000-0x00000000751A1000-memory.dmp

            Filesize

            5.7MB

          • memory/4416-141-0x0000000074BF0000-0x00000000751A1000-memory.dmp

            Filesize

            5.7MB