General

  • Target

    Notifica Demanda Ref. 25421208-2024 Admite Juzgado Civil.Tar

  • Size

    918KB

  • Sample

    241101-rda5es1erf

  • MD5

    61a102ca87cf67688a738bb3fefc8d24

  • SHA1

    e5305654a242ce03a45b1da667d632f74eb50a25

  • SHA256

    b9c39d6afb42a4bb5a0d79b2404d4ede5c52bdf930b6c0e7ee3fd9830ec117cc

  • SHA512

    ac08402b118942de387f63ba08e3016813dd942b660c8a57336baa53c47fedf2ad159b4f1a983139b970fbf5888e7651126f6e8806e2fcae4fd19e869fac8dff

  • SSDEEP

    24576:qXceahwpfZhdbN3OKALB+hUJgNzrrSux1NmKnW54NS3tsh:Rewwp/hNu+MQrmaJx4uh

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

OCTU30

C2

mjjhfyftuf.duckdns.org:8010

Mutex

DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

asyncrat

Version

| Edit 3LOSH RAT

Botnet

Default

C2

oooptesg.duckdns.org:8020

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      Notifica Demanda Ref. 25421208-2024 Admite Juzgado Civil.Tar

    • Size

      918KB

    • MD5

      61a102ca87cf67688a738bb3fefc8d24

    • SHA1

      e5305654a242ce03a45b1da667d632f74eb50a25

    • SHA256

      b9c39d6afb42a4bb5a0d79b2404d4ede5c52bdf930b6c0e7ee3fd9830ec117cc

    • SHA512

      ac08402b118942de387f63ba08e3016813dd942b660c8a57336baa53c47fedf2ad159b4f1a983139b970fbf5888e7651126f6e8806e2fcae4fd19e869fac8dff

    • SSDEEP

      24576:qXceahwpfZhdbN3OKALB+hUJgNzrrSux1NmKnW54NS3tsh:Rewwp/hNu+MQrmaJx4uh

    • AsyncRat

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

    • Asyncrat family

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Modifies Windows Defender Real-time Protection settings

    • UAC bypass

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Checks computer location settings

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

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Suspicious use of SetThreadContext

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks