Overview

overview

10

Static

static

3

JaffaCakes...09.exe

windows7-x64

10

JaffaCakes...09.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    JaffaCakes118_9103394e428bf63d87620aee6ba1d209

  • Size

    687KB

  • Sample

    250329-wzbqaszry3

  • MD5

    9103394e428bf63d87620aee6ba1d209

  • SHA1

    fcb5e6b70042d5badfc9e4ad8f5c844b286f5913

  • SHA256

    dabe2af6daac473c4a6b321aa03d1064ebfaca772542b2ee882fb400746c057b

  • SHA512

    88e480d681760165a5f2ccfd03d8bd6b25ee3f28d0abda1d05c750283f3cbb9c79644706c163be5a1f0ae3546e6195cce87a1e82846b8ebf958e33366303cb20

  • SSDEEP

    12288:ZFf8Zo8N0CQ82o1gR9AilAVJ+q2Zn0f0Q4lkhI9SxzNs4k5:Z9OoM0L8HOeiOVgVW14YmS1Ns4k5

Score
10/10
darkcometguest16defense_evasiondiscoverypersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Attributes
  • gencode

  • install

    false

  • offline_keylogger

    false

  • persistence

    false

rc4.plain

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

Mutex

DC_MUTEX-WGL61C9

Attributes
  • InstallPath

    Windupdt\winupdate.exe

  • gencode

    CgP9ATPpuVQg

  • install

    true

  • offline_keylogger

    true

  • password

    Pa$$w0rd

  • persistence

    true

  • reg_key

    winupdater

rc4.plain

Targets

    • Target

      JaffaCakes118_9103394e428bf63d87620aee6ba1d209

    • Size

      687KB

    • MD5

      9103394e428bf63d87620aee6ba1d209

    • SHA1

      fcb5e6b70042d5badfc9e4ad8f5c844b286f5913

    • SHA256

      dabe2af6daac473c4a6b321aa03d1064ebfaca772542b2ee882fb400746c057b

    • SHA512

      88e480d681760165a5f2ccfd03d8bd6b25ee3f28d0abda1d05c750283f3cbb9c79644706c163be5a1f0ae3546e6195cce87a1e82846b8ebf958e33366303cb20

    • SSDEEP

      12288:ZFf8Zo8N0CQ82o1gR9AilAVJ+q2Zn0f0Q4lkhI9SxzNs4k5:Z9OoM0L8HOeiOVgVW14YmS1Ns4k5

    Score
    10/10
    darkcometguest16discoveryrattrojandefense_evasionpersistence

    • Darkcomet

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

      trojanratdarkcomet

    • Darkcomet family

      darkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      defense_evasion

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks