General

  • Target

    PO#6100008 Jan04.02.2024.Xls.js

  • Size

    955KB

  • Sample

    250104-h3slbs1jhq

  • MD5

    46585cfdb357b9c32e0aed02376dea2c

  • SHA1

    3525ccecb41582261ba6401d34b56cfdb7ec0d1e

  • SHA256

    b7e9e72922bbafab57989a81d72e1dee75ae384bd975cce8a707417cc1df725a

  • SHA512

    52b9a853aec1268ed4304a3712a50a59d12ae4777eb5108920b7e8518ee6800449597d43a29fc73e33e4e3375c8a9fc99e55c7a47b54bed03aea7ef48e238929

  • SSDEEP

    6144:nj8EnXTkIEmXTSPAKujxQ2ZFnQsa45Z44HQ6YGhz00KY6RRs44lEhc6cgPEtcExS:nwmsGKcdssa474tYR0rGlfcEo

Malware Config

Extracted

Family

strrat

C2

chongmei33.publicvm.com:44662

chongmei33.myddns.rocks:44662

Attributes
  • license_id

    khonsari

  • plugins_url

    http://jbfrost.live/strigoi/server/?hwid=1&lid=m&ht=5

  • scheduled_task

    true

  • secondary_startup

    true

  • startup

    true

Extracted

Family

wshrat

C2

http://chongmei33.myddns.rocks:7044

Targets

    • Target

      PO#6100008 Jan04.02.2024.Xls.js

    • Size

      955KB

    • MD5

      46585cfdb357b9c32e0aed02376dea2c

    • SHA1

      3525ccecb41582261ba6401d34b56cfdb7ec0d1e

    • SHA256

      b7e9e72922bbafab57989a81d72e1dee75ae384bd975cce8a707417cc1df725a

    • SHA512

      52b9a853aec1268ed4304a3712a50a59d12ae4777eb5108920b7e8518ee6800449597d43a29fc73e33e4e3375c8a9fc99e55c7a47b54bed03aea7ef48e238929

    • SSDEEP

      6144:nj8EnXTkIEmXTSPAKujxQ2ZFnQsa45Z44HQ6YGhz00KY6RRs44lEhc6cgPEtcExS:nwmsGKcdssa474tYR0rGlfcEo

    • STRRAT

      STRRAT is a remote access tool than can steal credentials and log keystrokes.

    • Strrat family

    • WSHRAT

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

    • Wshrat family

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • 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 v15

Tasks