General

  • Target

    PO102983459pdf.js

  • Size

    188KB

  • Sample

    230112-s5xm6scc4s

  • MD5

    bc83816244612cf692c88784bf39314e

  • SHA1

    f2b0aebbf7668f78344bcf2c5c6c739b0bdb4152

  • SHA256

    f6cf56fadb9bc380881e8d653e2a9cbca6dd145d66b24b5d61fc8769fb45f12e

  • SHA512

    a552a667c39799f391501bf8419a15147ed2d692543903f1c718ac38a51d89012cc2739be2c6539a06bab1813f5ef7b94782bb87fb18fbbf928a0f835b667e98

  • SSDEEP

    3072:KyBsgQF1zZbbURCftbIpklgVDSxGfmuZnh6csQkFAQ0bamxvEzseGK/6H:KyBvQFIRCNAklgF2GuuZn+JMDreGK2

Malware Config

Extracted

Family

wshrat

C2

http://email15ssoscure.mydad.info:7123

Targets

    • Target

      PO102983459pdf.js

    • Size

      188KB

    • MD5

      bc83816244612cf692c88784bf39314e

    • SHA1

      f2b0aebbf7668f78344bcf2c5c6c739b0bdb4152

    • SHA256

      f6cf56fadb9bc380881e8d653e2a9cbca6dd145d66b24b5d61fc8769fb45f12e

    • SHA512

      a552a667c39799f391501bf8419a15147ed2d692543903f1c718ac38a51d89012cc2739be2c6539a06bab1813f5ef7b94782bb87fb18fbbf928a0f835b667e98

    • SSDEEP

      3072:KyBsgQF1zZbbURCftbIpklgVDSxGfmuZnh6csQkFAQ0bamxvEzseGK/6H:KyBvQFIRCNAklgF2GuuZn+JMDreGK2

    • 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