General

  • Target
    Bank Swift Copy.docx
  • Size 459KB
  • Sample241114-xtsbjasbpn
  • SHA256 27a37162f8f0baf5fe161825f8108f1f3e20bada83c2be08fe9919c60e4727b8
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • vipkeylogger

Credentials

Targets

    • Target
      Bank Swift Copy.docx
    • Size 459KB
    • SHA256 27a37162f8f0baf5fe161825f8108f1f3e20bada83c2be08fe9919c60e4727b8
    • MD5 SHA1 SHA512 SSDEEP
    • 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

    • Abuses OpenXML format to download file from external location

    • 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