General

  • Target

    Payment Error.doc

  • Size

    428KB

  • Sample

    250129-rsj1wa1kbz

  • MD5

    5ead6050fa77d4d44b29ddc70f861a81

  • SHA1

    0ce18e008244267259d4cb0864b0c5f95aa7002a

  • SHA256

    75b2491620e3a18ff8f25faf1d010a0fcf0da41854a81ae3be6b4657f0fed226

  • SHA512

    98d5177447e62b9488de384cb3afecde7ce804c16dda0a19f010e622538d43a2d7679f9fa297caea8eca672491e829df374e96695f9a717838d07d5962dd8e80

  • SSDEEP

    768:TpctGUpaMPN/nrSHuBRU7P0JKRiVpqG86R0X:TKnpHPdnrSODU7P0JKC9BRY

Malware Config

Extracted

Family

vipkeylogger

Credentials

Targets

    • Target

      Payment Error.doc

    • Size

      428KB

    • MD5

      5ead6050fa77d4d44b29ddc70f861a81

    • SHA1

      0ce18e008244267259d4cb0864b0c5f95aa7002a

    • SHA256

      75b2491620e3a18ff8f25faf1d010a0fcf0da41854a81ae3be6b4657f0fed226

    • SHA512

      98d5177447e62b9488de384cb3afecde7ce804c16dda0a19f010e622538d43a2d7679f9fa297caea8eca672491e829df374e96695f9a717838d07d5962dd8e80

    • SSDEEP

      768:TpctGUpaMPN/nrSHuBRU7P0JKRiVpqG86R0X:TKnpHPdnrSODU7P0JKC9BRY

    • 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