Overview

overview

10

Static

static

1

tmp.exe

windows7-x64

10

tmp.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    tmp
  • Size 438KB
  • Sample230403-ket6csfa8v
  • SHA256 aada5f9643e13e05d4d09edb7e35de72310b40f132475db49895fb3ad8e02b4f
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
wshratpersistencetrojan

Malware Config

Extracted

Family

  • wshrat

C2

  • http://snkcyp.duckdns.org:3369

Targets

    • Target
      tmp
    • Size 438KB
    • SHA256 aada5f9643e13e05d4d09edb7e35de72310b40f132475db49895fb3ad8e02b4f
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    wshratpersistencetrojan

    • WSHRAT

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

      trojanwshrat

    • WSHRAT payload

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • 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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks