General

  • Target

    JaffaCakes118_0e01525d20d82472d8f4f4baeceea7c0

  • Size

    353KB

  • Sample

    250220-y845bawly6

  • MD5

    0e01525d20d82472d8f4f4baeceea7c0

  • SHA1

    735ff695990bfc7a4b926297bb2c925da5d77da7

  • SHA256

    b5880746d859edbfc53d9118d7ce6bad58c20e9f67270b1ffcfa4cfc177cb655

  • SHA512

    65b350c6c28b66aad48f2427032d9b1df2926b50d8dc6868d4135dea49a26fc02d321b560b663198a856129e4a1893850e5c73b5cd7b3a95330137cb100868c0

  • SSDEEP

    6144:2JD6KarVGMX0mNsVvpyTpZY63vwPOj4LOAhz6tUIBwWcOUl2jXQcXForOM/m1n6:uDGRsuspipaSSW4zhSBwWcODsc1aOM/Y

Malware Config

Extracted

Family

darkcomet

Botnet

oksha

C2

fuck-all.no-ip.info:277

Mutex

DC_MUTEX-0RTF6BF

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    FkQYb2bTZw5j

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

rc4.plain

Extracted

Family

darkcomet

Attributes
  • gencode

  • install

    false

  • offline_keylogger

    false

  • persistence

    false

rc4.plain

Targets

    • Target

      JaffaCakes118_0e01525d20d82472d8f4f4baeceea7c0

    • Size

      353KB

    • MD5

      0e01525d20d82472d8f4f4baeceea7c0

    • SHA1

      735ff695990bfc7a4b926297bb2c925da5d77da7

    • SHA256

      b5880746d859edbfc53d9118d7ce6bad58c20e9f67270b1ffcfa4cfc177cb655

    • SHA512

      65b350c6c28b66aad48f2427032d9b1df2926b50d8dc6868d4135dea49a26fc02d321b560b663198a856129e4a1893850e5c73b5cd7b3a95330137cb100868c0

    • SSDEEP

      6144:2JD6KarVGMX0mNsVvpyTpZY63vwPOj4LOAhz6tUIBwWcOUl2jXQcXForOM/m1n6:uDGRsuspipaSSW4zhSBwWcODsc1aOM/Y

    • Darkcomet

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

    • Darkcomet family

    • Modifies WinLogon for persistence

    • Modifies firewall policy service

    • Modifies security service

    • Windows security bypass

    • 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.

    • Deletes itself

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

    • Adds Run key to start application

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks