General

  • Target

    JaffaCakes118_49a345d4194d28036d1430645f7519e7

  • Size

    1.2MB

  • Sample

    250303-2y63pssms2

  • MD5

    49a345d4194d28036d1430645f7519e7

  • SHA1

    bf964e926b74e3f1216ed54f69f9a7b55a9ab464

  • SHA256

    904e180b5468b3c91feee425e0ebcd68b33b81ffef5ad3130aa3ab0f388d4994

  • SHA512

    f83e9d1531c278910a72c9c67b9b08add1d9f20102e5dc87d233121499173e8dbc63ba182dc30587fb9c025cbb7888c2bf9c66792e64e5662dc6c05dfefb2767

  • SSDEEP

    24576:QFE//Tct4bOsa1Kmk9FfceaKYaNUFAcdm12F2D024J8i6Lzsb40pfsAXu/:ySVFmk9Ffc7g+6B12O0LJ8BLzsb1pk//

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

spicitus.no-ip.biz:6112

Mutex

DC_MUTEX-1140NCG

Attributes
  • InstallPath

    Windupdt\winupdate.exe

  • gencode

    a5#e7TpR=JAu

  • install

    true

  • offline_keylogger

    true

  • password

    1337pirat

  • persistence

    true

  • reg_key

    winupdater

rc4.plain

Extracted

Family

darkcomet

Attributes
  • gencode

  • install

    false

  • offline_keylogger

    false

  • persistence

    false

rc4.plain

Targets

    • Target

      JaffaCakes118_49a345d4194d28036d1430645f7519e7

    • Size

      1.2MB

    • MD5

      49a345d4194d28036d1430645f7519e7

    • SHA1

      bf964e926b74e3f1216ed54f69f9a7b55a9ab464

    • SHA256

      904e180b5468b3c91feee425e0ebcd68b33b81ffef5ad3130aa3ab0f388d4994

    • SHA512

      f83e9d1531c278910a72c9c67b9b08add1d9f20102e5dc87d233121499173e8dbc63ba182dc30587fb9c025cbb7888c2bf9c66792e64e5662dc6c05dfefb2767

    • SSDEEP

      24576:QFE//Tct4bOsa1Kmk9FfceaKYaNUFAcdm12F2D024J8i6Lzsb40pfsAXu/:ySVFmk9Ffc7g+6B12O0LJ8BLzsb1pk//

    • 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

    • Disables RegEdit via registry modification

    • 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.

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

    • Adds Run key to start application

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Suspicious use of SetThreadContext

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks