General

  • Target

    05ad66d563f492c9b527602ff6c7bd9b8fa0ed8f288d0481f51ebe6b71b05242.doc

  • Size

    636KB

  • Sample

    240822-bd1gbatfnl

  • MD5

    16ddde7b45c040f9fb63e73863134f5c

  • SHA1

    ca18b30011b59e341eae8006d05d543e7314ce0c

  • SHA256

    05ad66d563f492c9b527602ff6c7bd9b8fa0ed8f288d0481f51ebe6b71b05242

  • SHA512

    4b6dd4b9fc79ed9639f95eeff4756e3915591fca8265c70c361709f0aa46aec542143d1966cbf746bfc4eb8efd09ccebab9ff5290719025ade090fb8b8fd2c3b

  • SSDEEP

    6144:cwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAr:P6

Malware Config

Extracted

Family

vipkeylogger

Credentials

Targets

    • Target

      05ad66d563f492c9b527602ff6c7bd9b8fa0ed8f288d0481f51ebe6b71b05242.doc

    • Size

      636KB

    • MD5

      16ddde7b45c040f9fb63e73863134f5c

    • SHA1

      ca18b30011b59e341eae8006d05d543e7314ce0c

    • SHA256

      05ad66d563f492c9b527602ff6c7bd9b8fa0ed8f288d0481f51ebe6b71b05242

    • SHA512

      4b6dd4b9fc79ed9639f95eeff4756e3915591fca8265c70c361709f0aa46aec542143d1966cbf746bfc4eb8efd09ccebab9ff5290719025ade090fb8b8fd2c3b

    • SSDEEP

      6144:cwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAr:P6

    • VIPKeylogger

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

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • 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