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General

  • Target

    JaffaCakes118_86d9e56c3e555dc6030998cf95259be5

  • Size

    1.6MB

  • Sample

    250322-vpvjzsxtfx

  • MD5

    86d9e56c3e555dc6030998cf95259be5

  • SHA1

    8a9df020ac0f32b55016919bfaa00abbe559763b

  • SHA256

    1bc3088494944f59c99d118c27d185286905e137259e98de721dd439a6e2e662

  • SHA512

    c6b120315240cc9671fb0c4d91fd9007e0272317d70fe3f4a9b174402986fd6fb1bfb407b0551ac1e16868afa6a3df3424a9263492c323bd4bc17cf9b4609315

  • SSDEEP

    24576:/+DraMOVm++uBIWvr8KpP3e6DftzhJYoj/PAQS1wpWD5TBELMNMhpXTSF74fB8kk:GDtOVmruBr8K1e6D2oIB1w0F9aFBbN

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

192.168.1.96:1337

Mutex

DC_MUTEX-WUDUVMN

Attributes
  • InstallPath

    Windupdt\winupdate.exe

  • gencode

    DA7q.hvWq�Sa

  • install

    true

  • offline_keylogger

    false

  • persistence

    true

  • reg_key

    winupdater

rc4.plain

Targets

    • Target

      JaffaCakes118_86d9e56c3e555dc6030998cf95259be5

    • Size

      1.6MB

    • MD5

      86d9e56c3e555dc6030998cf95259be5

    • SHA1

      8a9df020ac0f32b55016919bfaa00abbe559763b

    • SHA256

      1bc3088494944f59c99d118c27d185286905e137259e98de721dd439a6e2e662

    • SHA512

      c6b120315240cc9671fb0c4d91fd9007e0272317d70fe3f4a9b174402986fd6fb1bfb407b0551ac1e16868afa6a3df3424a9263492c323bd4bc17cf9b4609315

    • SSDEEP

      24576:/+DraMOVm++uBIWvr8KpP3e6DftzhJYoj/PAQS1wpWD5TBELMNMhpXTSF74fB8kk:GDtOVmruBr8K1e6D2oIB1w0F9aFBbN

    • Darkcomet

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

    • Darkcomet family

    • Modifies WinLogon for persistence

    • Modifies firewall policy service

    • Windows security bypass

    • Checks BIOS information in registry

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

    • Deletes itself

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Adds Run key to start application

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks