Overview

overview

10

Static

static

3

b59f41b2e1...18.exe

windows7-x64

10

b59f41b2e1...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    b59f41b2e13be96995081ede3b5448ea_JaffaCakes118
  • Size 585KB
  • Sample241201-28effa1rhj
  • SHA256 b7b1d2292495b26c07ace69d9b563e99f1f6125408085864b6fb2e172c4975fb
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
darkcometguest16discoverypersistencerattrojan

Malware Config

Extracted

Family

  • darkcomet

Botnet

  • Guest16

C2

  • crossfirenp.no-ip.org:1604

Mutex

  • DC_MUTEX-Y8TYL43

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    o3Lo08H6R2fU

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target
      b59f41b2e13be96995081ede3b5448ea_JaffaCakes118
    • Size 585KB
    • SHA256 b7b1d2292495b26c07ace69d9b563e99f1f6125408085864b6fb2e172c4975fb
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    darkcometguest16discoverypersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Darkcomet family

      darkcomet

    • Modifies WinLogon for persistence

      persistence

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks