General

  • Target

    6a93c6b6467f2e24918f9c39f2b0d91a14974b3af096d39dda126c02f3299bc8

  • Size

    4.1MB

  • Sample

    240907-v411bawalk

  • MD5

    7531fbb7431039bda2b19160e0b9c2d4

  • SHA1

    b7f4a971ebf8128ee1ea7cb764b9582fb73b8002

  • SHA256

    6a93c6b6467f2e24918f9c39f2b0d91a14974b3af096d39dda126c02f3299bc8

  • SHA512

    5b8b09d896e12f3da879939f3c925da58ba79c6c1f2559594b1eb11d8fd5f63d3afeb12484b8656e0ba929cb0bb7fbb67a566d3599769c955885ca21b4036487

  • SSDEEP

    98304:51mCYY8UGo4x83fa1lyrd3qNz6VTDwgiLC/sE1:nmCWUUqi1s530+VohE

Malware Config

Extracted

Family

xworm

C2

lijaligibidu-35558.portmap.host:35558

127.0.0.1:7000

Attributes
  • Install_directory

    %AppData%

  • install_file

    Windows Security.exe

Targets

    • Target

      6a93c6b6467f2e24918f9c39f2b0d91a14974b3af096d39dda126c02f3299bc8

    • Size

      4.1MB

    • MD5

      7531fbb7431039bda2b19160e0b9c2d4

    • SHA1

      b7f4a971ebf8128ee1ea7cb764b9582fb73b8002

    • SHA256

      6a93c6b6467f2e24918f9c39f2b0d91a14974b3af096d39dda126c02f3299bc8

    • SHA512

      5b8b09d896e12f3da879939f3c925da58ba79c6c1f2559594b1eb11d8fd5f63d3afeb12484b8656e0ba929cb0bb7fbb67a566d3599769c955885ca21b4036487

    • SSDEEP

      98304:51mCYY8UGo4x83fa1lyrd3qNz6VTDwgiLC/sE1:nmCWUUqi1s530+VohE

    • AgentTesla

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

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • AgentTesla payload

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks