General

  • Target

    XWorm v5.6.rar

  • Size

    39.9MB

  • Sample

    240715-mexmla1gnj

  • MD5

    0fcefb0e589d6b2b2b6dd4da075f4526

  • SHA1

    1d858a4179531afe64e3ef5cc2a6cc40f5ad0981

  • SHA256

    ed24079ff53c18d2ba5f45e9b314ff04d60511afe9c61d73d355842781c8402d

  • SHA512

    e5ec72c9046ced32e2937a9ee787a8f0dd881c15582f79558dc2a2279641e32f407e258995327dfb061c3f05139e8d43d01adc5e88f95bf456c925d7191c6878

  • SSDEEP

    786432:vqko5L5Xsni3Uw7ldymrQLmKUCKBvJK29+gTOpjtkuXIzP6QQ:vq/5L58twb5rcAvVoppHXMPhQ

Malware Config

Targets

    • Target

      XWorm v5.6/XWormV5.6.exe

    • Size

      24.9MB

    • MD5

      80786c7f485cdeedad5016f586b747cd

    • SHA1

      7a8275a72b74634d9862382347915aac251057a1

    • SHA256

      6b9af6498afcc0035482ae73ee8b18d007d83050b621758b689e8d0d9396e7f5

    • SHA512

      89847c6c07361dff68e435e8208f1c6ddedefe1ccefce48e11510f10e2f30849492b9b0b983b0945fdcd94d260565bfb238b0f58979380602c52fb2751a6be27

    • SSDEEP

      786432:Cpjdtg5O9/MeKI/C6x77eS9LWIMBgk1m1e8A16Wo6N:R89jC6V7ewLzk1X8lW9

    • AgentTesla

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

    • Modifies security service

    • AgentTesla payload

    • Command and Scripting Interpreter: PowerShell

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

    • Creates new service(s)

    • Drops file in Drivers directory

    • Sets service image path in registry

    • Stops running service(s)

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • UPX packed file

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

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks