General

  • Target

    20020002011.js

  • Size

    1.5MB

  • Sample

    230306-k5llxaah4y

  • MD5

    3679c49913df66247c6acc19812e27c7

  • SHA1

    30f24eb88297d32991319b9169a43f4426d9d740

  • SHA256

    3fa9cc9e70806e590f32f15133a81a91a233b06015d1fba37d085e17cb662c4c

  • SHA512

    9be17f2cff2ff94ca3ccb7806513ef1ca6fbda9dddaa11daecfd1cbac7fcb424ab483584997463f4142e59c6b143d9fe6391cacf22065ddb83d274f0b570f397

  • SSDEEP

    3072:dkfldm91a4tGa1I5zaXT0GRnaKQ7vYMjVadIgooakWC4G7KZGiuy+KjGpsGu:dkfldm91a4tGa1I5zODnablOhPna

Malware Config

Extracted

Family

wshrat

C2

http://45.90.222.125:7121

Targets

    • Target

      20020002011.js

    • Size

      1.5MB

    • MD5

      3679c49913df66247c6acc19812e27c7

    • SHA1

      30f24eb88297d32991319b9169a43f4426d9d740

    • SHA256

      3fa9cc9e70806e590f32f15133a81a91a233b06015d1fba37d085e17cb662c4c

    • SHA512

      9be17f2cff2ff94ca3ccb7806513ef1ca6fbda9dddaa11daecfd1cbac7fcb424ab483584997463f4142e59c6b143d9fe6391cacf22065ddb83d274f0b570f397

    • SSDEEP

      3072:dkfldm91a4tGa1I5zaXT0GRnaKQ7vYMjVadIgooakWC4G7KZGiuy+KjGpsGu:dkfldm91a4tGa1I5zODnablOhPna

    • WSHRAT

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

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Drops startup file

    • Reads user/profile data of web browsers

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

    • 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 v6

Tasks