Resubmissions

09-07-2024 20:30

240709-y97xlatgqk 10

General

  • Target

    https://github.com/Da2dalus/The-MALWARE-Repo

  • Sample

    240709-y97xlatgqk

Malware Config

Extracted

Family

crimsonrat

C2

185.136.161.124

Extracted

Family

asyncrat

Version

| Edit 3LOSH RAT

Botnet

rat1

C2

xfreddy2751.duckdns.org:6606

xfreddy2751.duckdns.org:7707

xfreddy2751.duckdns.org:8808

darkstorm275991.ddns.net:6606

darkstorm275991.ddns.net:7707

darkstorm275991.ddns.net:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    true

  • install_file

    License.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • CrimsonRAT main payload

    • CrimsonRat

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

    • Darkcomet

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

    • Modifies WinLogon for persistence

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • AgentTesla payload

    • Async RAT payload

    • 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.

    • Executes dropped EXE

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • UPX packed file

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

    • Adds Run key to start application

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks