General

  • Target

    Payment Error.docx

  • Size

    179KB

  • Sample

    250129-rspw5aymgj

  • MD5

    3d1c1d2836460cf9b648fafe778afc7c

  • SHA1

    a6db7abf6061052b8fad3112a8d5570cd658f773

  • SHA256

    b1e95a02dacd02c5821a7cff619f919623f222b85f27f5c60470f06f7b5eac85

  • SHA512

    d1fbfa64020f97b6d1151559efdd9a47bcb32a58220763d0c25eef8b186110c48ddceb573ebdf678254163fcc8567c4ede18ac6c7d90d4e6ed04cbf06b42b25c

  • SSDEEP

    3072:QiY5rj1ATug+mhTZMxjcFQ9csn4qAzYjDp/shKuikycBSRjR/Vx7XUgpxD:K5r/g+qZMpcFSQzYHut4dFrD

Malware Config

Extracted

Family

vipkeylogger

Credentials

Targets

    • Target

      Payment Error.docx

    • Size

      179KB

    • MD5

      3d1c1d2836460cf9b648fafe778afc7c

    • SHA1

      a6db7abf6061052b8fad3112a8d5570cd658f773

    • SHA256

      b1e95a02dacd02c5821a7cff619f919623f222b85f27f5c60470f06f7b5eac85

    • SHA512

      d1fbfa64020f97b6d1151559efdd9a47bcb32a58220763d0c25eef8b186110c48ddceb573ebdf678254163fcc8567c4ede18ac6c7d90d4e6ed04cbf06b42b25c

    • SSDEEP

      3072:QiY5rj1ATug+mhTZMxjcFQ9csn4qAzYjDp/shKuikycBSRjR/Vx7XUgpxD:K5r/g+qZMpcFSQzYHut4dFrD

    • 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