General

  • Target

    PIITS15235.xll

  • Size

    3KB

  • Sample

    250123-tkgxnavmg1

  • MD5

    d137ab6fd155d9db65d23b1dd7aec43e

  • SHA1

    4870806f3fa9d3bb3cd65cfaa9c47f7d83dfaa21

  • SHA256

    ffc0753059b38955158a02220aea934a651977953f07e9cc1b4ea43797d3481b

  • SHA512

    064b9fa2b89bdb0bcf8b0fa00ebb78f9b817f23f1b6ab4d8551541fa64cf6c9a754200a5c2dc184a444d6ecd14ffda6df4c78a8356c0887d7f11e6f090988daf

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7354418955:AAH10FAR8IByRBtd_Qs69uwN7lnhl-2X18k/sendMessage?chat_id=6851554211

Targets

    • Target

      PIITS15235.xll

    • Size

      3KB

    • MD5

      d137ab6fd155d9db65d23b1dd7aec43e

    • SHA1

      4870806f3fa9d3bb3cd65cfaa9c47f7d83dfaa21

    • SHA256

      ffc0753059b38955158a02220aea934a651977953f07e9cc1b4ea43797d3481b

    • SHA512

      064b9fa2b89bdb0bcf8b0fa00ebb78f9b817f23f1b6ab4d8551541fa64cf6c9a754200a5c2dc184a444d6ecd14ffda6df4c78a8356c0887d7f11e6f090988daf

    • VIPKeylogger

      VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

    • Vipkeylogger family

    • Command and Scripting Interpreter: PowerShell

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

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook profiles

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks