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General

  • Target

    JaffaCakes118_865a76dfc19b433afb42e655c9001592

  • Size

    412KB

  • Sample

    250322-q8lc7sxrw4

  • MD5

    865a76dfc19b433afb42e655c9001592

  • SHA1

    a8e90d5c7202b45aa5ecd9a9e09d95c1cad331c0

  • SHA256

    10a199ce0118059a4f2bf5fbd5a7680096a419429913802b00a3305ddc22e290

  • SHA512

    484d1e554e4984829c213a66e9aca81bb47933b247ace3a0a6daef5e66b9ba3dc57ce60a193b691d5b051c16d954b2a7950ebecfd1543bf086b577b4944333df

  • SSDEEP

    12288:e0Siiu2cOMayaZerXXmhFXS7VS+vcXKmg3kL:k3gV6eih+TvIKmgU

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

62.195.250.128 :20

127.0.0.1:20

Mutex

DC_MUTEX-Y9XUFHU

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    tDz+N/NQx2CU

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

rc4.plain

Targets

    • Target

      JaffaCakes118_865a76dfc19b433afb42e655c9001592

    • Size

      412KB

    • MD5

      865a76dfc19b433afb42e655c9001592

    • SHA1

      a8e90d5c7202b45aa5ecd9a9e09d95c1cad331c0

    • SHA256

      10a199ce0118059a4f2bf5fbd5a7680096a419429913802b00a3305ddc22e290

    • SHA512

      484d1e554e4984829c213a66e9aca81bb47933b247ace3a0a6daef5e66b9ba3dc57ce60a193b691d5b051c16d954b2a7950ebecfd1543bf086b577b4944333df

    • SSDEEP

      12288:e0Siiu2cOMayaZerXXmhFXS7VS+vcXKmg3kL:k3gV6eih+TvIKmgU

    • Darkcomet

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

    • Darkcomet family

    • Modifies WinLogon for persistence

    • Modifies security service

    • Windows security bypass

    • Drops file in Drivers directory

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

    • Adds Run key to start application

    • Network Service Discovery

      Attempt to gather information on host's network.

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks