General

Malware Config

Extracted

Family
  • crimsonrat

C2
  • 185.136.161.124

Extracted

Family
  • njrat

Version
  • 0.7d

Botnet
  • Geforce

C2
  • startitit2-23969.portmap.host:1604

Mutex
  • b9584a316aeb9ca9b31edd4db18381f5

Attributes
  • reg_key

    b9584a316aeb9ca9b31edd4db18381f5

  • splitter

    Y262SUCZ4UJJ

Extracted

Family
  • darkcomet

Botnet
  • Guest1111

C2
  • 193.242.166.48:1605

Mutex
  • DC_MUTEX-2QRLPN3

Attributes
  • InstallPath

    Windupdt\winupdate.exe

  • gencode

    Rb5l52XcV9no

  • install

    true

  • offline_keylogger

    false

  • password

    313131

  • persistence

    true

  • reg_key

    winupdater

rc4.plain

Targets

    • CrimsonRAT main payload

    • Family: CrimsonRat

      Crimson RAT is a malware linked to a Pakistani-linked threat actor.

    • Family: Darkcomet

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

    • Family: njRAT/Bladabindi

      Widely used RAT written in .NET.

    • Modifies WinLogon for persistence

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • 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.

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    • Executes dropped EXE

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

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

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Adds Run key to start application

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks