General

  • Target

    mnobizxv.doc

  • Size

    670KB

  • Sample

    241027-p1rpksvqbl

  • MD5

    c00a17e56e7eeaf2d72456692c36eec7

  • SHA1

    72fbbce62454aaa611317d1c23a1980712d44613

  • SHA256

    ee1c72ebaf43badfd7469960a19c0b2c54dc7485eff720cab2eb6bb9cf623c04

  • SHA512

    ba0273b1afeb40e3c877fadc20e3ab3960e4db79272b042e500bc896d3986f607de401a2c300f97c42442e2ce4a03c241913a62439e96ff73b9795ad6527db97

  • SSDEEP

    6144:+wAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAsGJ9iX4l5Pyw+bmM:U

Malware Config

Extracted

Family

vipkeylogger

Credentials

Targets

    • Target

      mnobizxv.doc

    • Size

      670KB

    • MD5

      c00a17e56e7eeaf2d72456692c36eec7

    • SHA1

      72fbbce62454aaa611317d1c23a1980712d44613

    • SHA256

      ee1c72ebaf43badfd7469960a19c0b2c54dc7485eff720cab2eb6bb9cf623c04

    • SHA512

      ba0273b1afeb40e3c877fadc20e3ab3960e4db79272b042e500bc896d3986f607de401a2c300f97c42442e2ce4a03c241913a62439e96ff73b9795ad6527db97

    • SSDEEP

      6144:+wAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAsGJ9iX4l5Pyw+bmM:U

    • 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