General

  • Target

    1ba4cc6d802de1c1a179117e03f1524a7579653d53de88a7dc527e47fd9adf3c

  • Size

    658KB

  • Sample

    220731-nt5gesecd5

  • MD5

    b6b89f75ac22101f14c7d12f1f73f78a

  • SHA1

    ae7cceac409d310ba1eddc8d44669e185ef9cd3b

  • SHA256

    1ba4cc6d802de1c1a179117e03f1524a7579653d53de88a7dc527e47fd9adf3c

  • SHA512

    5d039793437723260f111d7875bebf778a407b738e27376d6b20d9ca241c963231077b4c29adb2aa967c6578d3b948957ba5ebace0ca72ebb406e76236112aba

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

C2

192.168.0.2:1604

Mutex

DCMIN_MUTEX-G5WFLF3

Attributes
  • InstallPath

    DCSCMIN\IMDCSC.exe

  • gencode

    mWmDvgFKEV9i

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    DarkComet RAT

Targets

    • Target

      1ba4cc6d802de1c1a179117e03f1524a7579653d53de88a7dc527e47fd9adf3c

    • Size

      658KB

    • MD5

      b6b89f75ac22101f14c7d12f1f73f78a

    • SHA1

      ae7cceac409d310ba1eddc8d44669e185ef9cd3b

    • SHA256

      1ba4cc6d802de1c1a179117e03f1524a7579653d53de88a7dc527e47fd9adf3c

    • SHA512

      5d039793437723260f111d7875bebf778a407b738e27376d6b20d9ca241c963231077b4c29adb2aa967c6578d3b948957ba5ebace0ca72ebb406e76236112aba

    • Darkcomet

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

    • Modifies WinLogon for persistence

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Winlogon Helper DLL

1
T1004

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks