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Overview

overview

10

Static

static

3

JaffaCakes...b2.exe

windows7-x64

10

JaffaCakes...b2.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    JaffaCakes118_7b4bc8f35e4887772855b3573a2147b2

  • Size

    2.1MB

  • Sample

    250316-w6cwyaw1fy

  • MD5

    7b4bc8f35e4887772855b3573a2147b2

  • SHA1

    2daa51b1a67c1cea7168fbad460041ac3d99a974

  • SHA256

    ae41a577dd9f2723afed0b2afba7dbc4e96a8b0ed489dde8a61c4fcd9591a0b8

  • SHA512

    14675f03d2ceb84f1657c8b3bca47426540267640a8bd6100e928a9a0a1adb49f60d9ca9a930af6d5f9f80274277349c1213fb6c721c22e7e9bef99f2304db64

  • SSDEEP

    49152:5m7NqIQ73q0zrc24judrdV0la4P1GURSYw:w5i63judrdV0lL1GU4Yw

Score
10/10
darkcometguest16defense_evasiondiscoverypersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

24.13.208.88:100

http://jaxxyg5.zapto.org:100
Mutex

DC_MUTEX-7QBA6BH

Attributes
  • InstallPath

    Windows Startup\Java Update.exe

  • gencode

    99nVAa6KGXwo

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    Java Update

rc4.plain

Extracted

Family

darkcomet

Attributes
  • gencode

  • install

    false

  • offline_keylogger

    false

  • persistence

    false

rc4.plain

Targets

    • Target

      JaffaCakes118_7b4bc8f35e4887772855b3573a2147b2

    • Size

      2.1MB

    • MD5

      7b4bc8f35e4887772855b3573a2147b2

    • SHA1

      2daa51b1a67c1cea7168fbad460041ac3d99a974

    • SHA256

      ae41a577dd9f2723afed0b2afba7dbc4e96a8b0ed489dde8a61c4fcd9591a0b8

    • SHA512

      14675f03d2ceb84f1657c8b3bca47426540267640a8bd6100e928a9a0a1adb49f60d9ca9a930af6d5f9f80274277349c1213fb6c721c22e7e9bef99f2304db64

    • SSDEEP

      49152:5m7NqIQ73q0zrc24judrdV0la4P1GURSYw:w5i63judrdV0lL1GU4Yw

    Score
    10/10
    darkcometguest16defense_evasiondiscoverypersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Darkcomet family

      darkcomet

    • Modifies WinLogon for persistence

      persistence

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      defense_evasion

    • 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