General

  • Target

    5a2e2ca9860980f6aaaad2383eec1d31_JaffaCakes118

  • Size

    253KB

  • Sample

    241019-bth7za1bkr

  • MD5

    5a2e2ca9860980f6aaaad2383eec1d31

  • SHA1

    268cc396b61dbe764832829dfb23091b7f8dc4e0

  • SHA256

    8b30759a63cce817fa34ef8388730a603b68ee13423c44f432f9e90e9cfa35d6

  • SHA512

    919e5474fc73c53c2fdc35483b1e2faa0805c0bc5aa9238831ea4dcbc8c9b48e1f36816ca48b51aee104d40e4237b5fc7671ffd88be5387209263b526aadd88e

  • SSDEEP

    6144:CD7cY2fgssM7Wirg9KXylmRiL+QMeC/i6isqX7UovnONztByipwxZS8:Cl8E4w5huat7UovONzbXw

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

letomaniydh.ddns.net:1604

letomaniydh.ddns.net:27015

testnjrat123.ddns.net:27015

Mutex

DC_MUTEX-G4GUG7Y

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    377PcDZmSHBr

  • install

    true

  • offline_keylogger

    false

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      5a2e2ca9860980f6aaaad2383eec1d31_JaffaCakes118

    • Size

      253KB

    • MD5

      5a2e2ca9860980f6aaaad2383eec1d31

    • SHA1

      268cc396b61dbe764832829dfb23091b7f8dc4e0

    • SHA256

      8b30759a63cce817fa34ef8388730a603b68ee13423c44f432f9e90e9cfa35d6

    • SHA512

      919e5474fc73c53c2fdc35483b1e2faa0805c0bc5aa9238831ea4dcbc8c9b48e1f36816ca48b51aee104d40e4237b5fc7671ffd88be5387209263b526aadd88e

    • SSDEEP

      6144:CD7cY2fgssM7Wirg9KXylmRiL+QMeC/i6isqX7UovnONztByipwxZS8:Cl8E4w5huat7UovONzbXw

    • Darkcomet

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

    • Modifies WinLogon for persistence

    • Modifies firewall policy service

    • Modifies security service

    • Windows security bypass

    • Disables RegEdit via registry modification

    • Disables Task Manager via registry modification

    • 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

    • Suspicious use of SetThreadContext

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks