General

  • Target

    na.doc

  • Size

    1.3MB

  • Sample

    241027-p73enaxfng

  • MD5

    7a75479fd14b0ee97d21eb77e2695403

  • SHA1

    f082af08cd6d63c53db66330c768d9841a14eca8

  • SHA256

    f7282dee1da13bcfa4ec379fd0fb224342d1fc9463e2200a53c53b4d1aa7eb34

  • SHA512

    cc65e84a631060407b75361360c8a84aca5f551ce7c30c5c17bd8ac3c3ffbe1cb48df5162a89094131e294481ab9d97e0cb4e554d12876fdc6a38724bac61ed3

  • SSDEEP

    6144:rwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwA6:p0

Malware Config

Extracted

Family

vipkeylogger

Credentials

Targets

    • Target

      na.doc

    • Size

      1.3MB

    • MD5

      7a75479fd14b0ee97d21eb77e2695403

    • SHA1

      f082af08cd6d63c53db66330c768d9841a14eca8

    • SHA256

      f7282dee1da13bcfa4ec379fd0fb224342d1fc9463e2200a53c53b4d1aa7eb34

    • SHA512

      cc65e84a631060407b75361360c8a84aca5f551ce7c30c5c17bd8ac3c3ffbe1cb48df5162a89094131e294481ab9d97e0cb4e554d12876fdc6a38724bac61ed3

    • SSDEEP

      6144:rwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwA6:p0

    • 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