General

  • Target

    blhbZrtqbLg6O1K.doc

  • Size

    857KB

  • Sample

    241113-jftesaxfjg

  • MD5

    9b33bc2074cc4df27de67aa3a4751207

  • SHA1

    7f6d18d3a714e92dbb75b58216dcb01bf0e7f3dc

  • SHA256

    303f6cb6bffb7bab41a611f99a776a07fcfda896cb344d3eb4f34461922c60b4

  • SHA512

    e30ca2358a7e5dc4adad2b04fa33289eab853fa5a6cff1305019fd4576305caeedb2bb687065641ceeca6f00e23f638ca2806cfd58844bcc56e9136e3d39309f

  • SSDEEP

    6144:bwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAbASv7iF//kmFPSC/mQpShv:2

Malware Config

Extracted

Family

vipkeylogger

Credentials

Targets

    • Target

      blhbZrtqbLg6O1K.doc

    • Size

      857KB

    • MD5

      9b33bc2074cc4df27de67aa3a4751207

    • SHA1

      7f6d18d3a714e92dbb75b58216dcb01bf0e7f3dc

    • SHA256

      303f6cb6bffb7bab41a611f99a776a07fcfda896cb344d3eb4f34461922c60b4

    • SHA512

      e30ca2358a7e5dc4adad2b04fa33289eab853fa5a6cff1305019fd4576305caeedb2bb687065641ceeca6f00e23f638ca2806cfd58844bcc56e9136e3d39309f

    • SSDEEP

      6144:bwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAbASv7iF//kmFPSC/mQpShv:2

    • VIPKeylogger

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

    • Vipkeylogger family

    • Blocklisted process makes network request

    • 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

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks