General

  • Target

    b7d62d77cace855288bf6b463f8ad783316594f90dad78d97a7ea85be58b8bc3.doc

  • Size

    910KB

  • Sample

    241115-dfw8saxglh

  • MD5

    71b37aac269badfe278550c567b76db4

  • SHA1

    a7fb35d35eb23fe3b4358e3c843f5982a161534e

  • SHA256

    b7d62d77cace855288bf6b463f8ad783316594f90dad78d97a7ea85be58b8bc3

  • SHA512

    db5999667758c607c1322dcd2652b350098a03f6bcd81c884efa5005920771a909f644a62979e7b4fd85d569a7374f9b980345bda822e1aa493e4c428d1c2b67

  • SSDEEP

    6144:VwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAGX3vfwukn15uV:I9

Malware Config

Extracted

Family

vipkeylogger

Credentials

Targets

    • Target

      b7d62d77cace855288bf6b463f8ad783316594f90dad78d97a7ea85be58b8bc3.doc

    • Size

      910KB

    • MD5

      71b37aac269badfe278550c567b76db4

    • SHA1

      a7fb35d35eb23fe3b4358e3c843f5982a161534e

    • SHA256

      b7d62d77cace855288bf6b463f8ad783316594f90dad78d97a7ea85be58b8bc3

    • SHA512

      db5999667758c607c1322dcd2652b350098a03f6bcd81c884efa5005920771a909f644a62979e7b4fd85d569a7374f9b980345bda822e1aa493e4c428d1c2b67

    • SSDEEP

      6144:VwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAGX3vfwukn15uV:I9

    • 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