General

  • Target

    2ad0b8e8c41f65839f0c2dda4e2a39b0e8a844ec3d67fef7e79a690ab56b4982

  • Size

    60KB

  • Sample

    241227-a72qssxkak

  • MD5

    5b29d55280fbe57e4a9c22c155288061

  • SHA1

    5456a06ad792bac192f961ac4901227f6825084e

  • SHA256

    2ad0b8e8c41f65839f0c2dda4e2a39b0e8a844ec3d67fef7e79a690ab56b4982

  • SHA512

    9ba6d4effb2a304f047149f6fa199607c24338460cdf9c78cfed22d07cb15f087e4d7e28d8bb19949dc4f5a6536b4ad2b4590eb4991ecbad69509411d8236b36

  • SSDEEP

    1536:fZBkdsU4s4YLnN9054AxcRkbu79EnhO023fI:bk5LnD05ikbuxGO023Q

Malware Config

Extracted

Family

xworm

C2

213.136.90.188:7000

Attributes
  • Install_directory

    %Userprofile%

  • install_file

    Microsoft Edgs.exe

Extracted

Family

asyncrat

Version

Tsurugi RATs

Botnet

Default

C2

213.136.90.188:4449

Mutex

zteprqyjlfgxrxuaid

Attributes
  • delay

    1

  • install

    true

  • install_file

    Check Windows Update.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      2ad0b8e8c41f65839f0c2dda4e2a39b0e8a844ec3d67fef7e79a690ab56b4982

    • Size

      60KB

    • MD5

      5b29d55280fbe57e4a9c22c155288061

    • SHA1

      5456a06ad792bac192f961ac4901227f6825084e

    • SHA256

      2ad0b8e8c41f65839f0c2dda4e2a39b0e8a844ec3d67fef7e79a690ab56b4982

    • SHA512

      9ba6d4effb2a304f047149f6fa199607c24338460cdf9c78cfed22d07cb15f087e4d7e28d8bb19949dc4f5a6536b4ad2b4590eb4991ecbad69509411d8236b36

    • SSDEEP

      1536:fZBkdsU4s4YLnN9054AxcRkbu79EnhO023fI:bk5LnD05ikbuxGO023Q

    • 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.

    • Detect Xworm Payload

    • Modifies Windows Defender Real-time Protection settings

    • StormKitty

      StormKitty is an open source info stealer written in C#.

    • StormKitty payload

    • Stormkitty family

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • UAC bypass

    • VenomRAT

      Detects VenomRAT.

    • Venomrat family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Async RAT payload

    • Checks computer location settings

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

    • Drops startup file

    • 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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Command and Scripting Interpreter: PowerShell

      Start PowerShell.

MITRE ATT&CK Enterprise v15

Tasks