General

  • Target

    Detonate.js

  • Size

    552KB

  • Sample

    221227-y6xmfsgc37

  • MD5

    b743d8c6adca54da12b0db7919c27a90

  • SHA1

    8f655cf64202816cc6f3f6bc9fb31fe654794947

  • SHA256

    f2fd0e6165a227c6cdb08825ed6dc2d93c03a9440b54b1551b01c06611c470cb

  • SHA512

    0dd63b8ee73ec4dd5a482a0946798443de0fc51b5fa10b79675519e9b4d8dd16d452f5413d1b7dd8bfcde4779fc4bf7a32b1dfb95c011fff9b96efb61402ddf2

  • SSDEEP

    12288:dOKGlfbw+CR++l70xMQ258+Js6gxkUeL+3/ZwCMUJxTxuy4g:d6fB2m

Malware Config

Extracted

Family

wshrat

C2

http://email15ssoscure.mydad.info:7123

Targets

    • Target

      Detonate.js

    • Size

      552KB

    • MD5

      b743d8c6adca54da12b0db7919c27a90

    • SHA1

      8f655cf64202816cc6f3f6bc9fb31fe654794947

    • SHA256

      f2fd0e6165a227c6cdb08825ed6dc2d93c03a9440b54b1551b01c06611c470cb

    • SHA512

      0dd63b8ee73ec4dd5a482a0946798443de0fc51b5fa10b79675519e9b4d8dd16d452f5413d1b7dd8bfcde4779fc4bf7a32b1dfb95c011fff9b96efb61402ddf2

    • SSDEEP

      12288:dOKGlfbw+CR++l70xMQ258+Js6gxkUeL+3/ZwCMUJxTxuy4g:d6fB2m

    • WSHRAT

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

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook accounts

    • 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.

MITRE ATT&CK Enterprise v6

Tasks