Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-11-2024 05:16

General

  • Target

    8f58c94ece1bace4e3eac74c51950fcc_JaffaCakes118.exe

  • Size

    886KB

  • MD5

    8f58c94ece1bace4e3eac74c51950fcc

  • SHA1

    a95f0b844701f05054b7382be6aa7888498a2626

  • SHA256

    d6df64bbc9873e60a38dfb6ff3fe0a3d0763167e07b84279ba328860d48cd4e9

  • SHA512

    dfaafd564837b4f2466b0215de21234c8ac82057ebec19fa2479b590fb774aa361ca2dc2e1a0142599ae302ddfb2b9dffb68750192912647f29949684bf4a862

  • SSDEEP

    12288:xXZFfk9Qc45ejXv1LvwrNIlcH/OohtdtYTZqgA9Yrs5WCTj4LXynXyLLlQ:Vvk9Q9er9jw56cH/Ntdt/gcY45WC/rE

Malware Config

Extracted

Family

darkcomet

Botnet

torrent

C2

xstf.servegame.com:12333

Mutex

DC_MUTEX-QFZLF9C

Attributes
  • InstallPath

    My Torrents\torrent.exe

  • gencode

    pCFNmbgnqzps

  • install

    true

  • offline_keylogger

    true

  • password

    xsTFyRVa37890

  • persistence

    false

  • reg_key

    torrent

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Molebox Virtualization software 1 IoCs

    Detects file using Molebox Virtualization software.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f58c94ece1bace4e3eac74c51950fcc_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8f58c94ece1bace4e3eac74c51950fcc_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1720
    • C:\Users\Admin\AppData\Local\Temp\8f58c94ece1bace4e3eac74c51950fcc_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\8f58c94ece1bace4e3eac74c51950fcc_JaffaCakes118.exe
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3140
      • C:\Users\Admin\AppData\Roaming\My Torrents\torrent.exe
        "C:\Users\Admin\AppData\Roaming\My Torrents\torrent.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1476
        • C:\Users\Admin\AppData\Roaming\My Torrents\torrent.exe
          "C:\Users\Admin\AppData\Roaming\My Torrents\torrent.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:400

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\My Torrents\torrent.exe

    Filesize

    886KB

    MD5

    8f58c94ece1bace4e3eac74c51950fcc

    SHA1

    a95f0b844701f05054b7382be6aa7888498a2626

    SHA256

    d6df64bbc9873e60a38dfb6ff3fe0a3d0763167e07b84279ba328860d48cd4e9

    SHA512

    dfaafd564837b4f2466b0215de21234c8ac82057ebec19fa2479b590fb774aa361ca2dc2e1a0142599ae302ddfb2b9dffb68750192912647f29949684bf4a862

  • memory/400-54-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/400-67-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/400-53-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/400-66-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/400-65-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/400-64-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/400-47-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/400-48-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/400-49-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/400-50-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/400-51-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/400-52-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/400-63-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/400-55-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/400-62-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/400-56-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/400-57-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/400-58-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/400-59-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/400-60-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/400-61-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3140-3-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3140-4-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3140-42-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3140-1-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3140-5-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3140-0-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB