General

  • Target

    d718eb322dc9348cb1813a920ca739a5c4bd6b44ac32c0c085bd92148bf94161.rtf

  • Size

    820KB

  • Sample

    240822-cy6z9stgra

  • MD5

    77d04e68c46c843c399d83b858b9b46a

  • SHA1

    8f4f41f26cd7bd6b60045cc878c83d132f79193a

  • SHA256

    d718eb322dc9348cb1813a920ca739a5c4bd6b44ac32c0c085bd92148bf94161

  • SHA512

    22986daa2bd352305885276d9c000caf89c171a6187caadb1d29bbbf1e89916e4a6a199aa6500890befaa9dfc92a14d87976b470b41ec49f5f050b40f9b8b81d

  • SSDEEP

    6144:3wAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAN:uE

Malware Config

Extracted

Family

vipkeylogger

Credentials

Targets

    • Target

      d718eb322dc9348cb1813a920ca739a5c4bd6b44ac32c0c085bd92148bf94161.rtf

    • Size

      820KB

    • MD5

      77d04e68c46c843c399d83b858b9b46a

    • SHA1

      8f4f41f26cd7bd6b60045cc878c83d132f79193a

    • SHA256

      d718eb322dc9348cb1813a920ca739a5c4bd6b44ac32c0c085bd92148bf94161

    • SHA512

      22986daa2bd352305885276d9c000caf89c171a6187caadb1d29bbbf1e89916e4a6a199aa6500890befaa9dfc92a14d87976b470b41ec49f5f050b40f9b8b81d

    • SSDEEP

      6144:3wAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAN:uE

    • 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