General

  • Target
    b2784bbe213a75389177773a1e0932c0e70721d3e61f94fc64767ec146442cc2
  • Size 3.8MB
  • Sample220311-12934aeghk
  • SHA256 b2784bbe213a75389177773a1e0932c0e70721d3e61f94fc64767ec146442cc2
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • darkcomet

Botnet
  • Opfer

C2
  • panzaknacka.hopto.org:1337

Mutex
  • DC_MUTEX-ENLYG18

Attributes
  • InstallPath

    MSDCSC\sysdate.exe

  • gencode

    9uX0u38l6Y1n

  • install

    true

  • offline_keylogger

    true

  • password

    l0rn

  • persistence

    false

  • reg_key

    sysdate.exe

Targets

    • Target
      b2784bbe213a75389177773a1e0932c0e70721d3e61f94fc64767ec146442cc2
    • Size 3.8MB
    • SHA256 b2784bbe213a75389177773a1e0932c0e70721d3e61f94fc64767ec146442cc2
    • MD5 SHA1 SHA512
    • Darkcomet

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

    • ISR Stealer

      ISR Stealer is a modified version of Hackhound Stealer written in visual basic.

    • ISR Stealer Payload

    • Modifies WinLogon for persistence

    • suricata: ET MALWARE ISRStealer Checkin

      suricata: ET MALWARE ISRStealer Checkin

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • Nirsoft

    • Executes dropped EXE

    • UPX packed file

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

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks