General

  • Target

    9dd6a382a4b8e3295ed977f1cc176c0a_JaffaCakes118

  • Size

    1.9MB

  • Sample

    240816-lkwf2sxdpa

  • MD5

    9dd6a382a4b8e3295ed977f1cc176c0a

  • SHA1

    cd990deea4530f113c617b9cda0eeea7ada9170e

  • SHA256

    7910fea09618fde1ba6c2e3ea088de50109e685d20ae1c08df2f8b530fddd964

  • SHA512

    a9181c76e87101bedff793689df0d60d89e49469b0b6f768961f0185bbda82d78837db236a2a8bf9585252ee467d2081ce02769662b57d6b3386836550d5e7dc

  • SSDEEP

    24576:zRgV9lX4ePztJzKe4QTnExJrP6+RtCFKOqRuGmjpMg8R5w+cTll8add1Lj6vull+:zR6bbJR7OyKiKO0VaqgY5w+eTZ3Ejmr6

Malware Config

Extracted

Family

wshrat

C2

http://blackhillls.ddns.net:1334

Targets

    • Target

      9dd6a382a4b8e3295ed977f1cc176c0a_JaffaCakes118

    • Size

      1.9MB

    • MD5

      9dd6a382a4b8e3295ed977f1cc176c0a

    • SHA1

      cd990deea4530f113c617b9cda0eeea7ada9170e

    • SHA256

      7910fea09618fde1ba6c2e3ea088de50109e685d20ae1c08df2f8b530fddd964

    • SHA512

      a9181c76e87101bedff793689df0d60d89e49469b0b6f768961f0185bbda82d78837db236a2a8bf9585252ee467d2081ce02769662b57d6b3386836550d5e7dc

    • SSDEEP

      24576:zRgV9lX4ePztJzKe4QTnExJrP6+RtCFKOqRuGmjpMg8R5w+cTll8add1Lj6vull+:zR6bbJR7OyKiKO0VaqgY5w+eTZ3Ejmr6

    • Matiex

      Matiex is a keylogger and infostealer first seen in July 2020.

    • Matiex Main payload

    • PredatorStealer

      Predator is a modular stealer written in C#.

    • WSHRAT

      WSHRAT is a variant of Houdini worm and has vbs and js variants.

    • WSHRAT payload

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Blocklisted process makes network request

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks