Overview

overview

10

Static

static

1

cc10da7e2a...4fc.js

windows7-x64

10

cc10da7e2a...4fc.js

windows10-2004-x64

10

Sharing

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General

  • Target

    70a617fd2bdb08c64a65ecfba1612140.bin

  • Size

    159KB

  • Sample

    240515-da66ssdg2x

  • MD5

    5c429142853269b04a2feb2d8d8a61af

  • SHA1

    150a7f55f01388f8f0e70869f38c662ba4d6d3a6

  • SHA256

    a81235f96e5d744f4c098ec02a84fd6185989e7d7c5f2a45200b34282f34e28e

  • SHA512

    783a1c22a42e1debe7567689cba1c7f58f0ababf530b040579e7dee340bf0311f7a1ffda8530debea0a3f259719b493785fc6d8121425e6622911824446ed6c9

  • SSDEEP

    3072:A37q4T+VH9b0bbrifgfXE0/i0FiIrUPckvsxWuXPDepBwL6iDK7Lt:+WW06ijIU4IuX+BwOiDKPt

Score
10/10
wshratexecutionpersistencetrojan

Malware Config

Extracted

Family

wshrat

C2

http://masterokrwh.duckdns.org:8426

Targets

    • Target

      cc10da7e2a5c074cc559ed0f19a4880ae171a44b0039a5d3caadfd326db714fc.js

    • Size

      616KB

    • MD5

      70a617fd2bdb08c64a65ecfba1612140

    • SHA1

      d41eec4cb2f449b845d3f4fa3baf80086705bba6

    • SHA256

      cc10da7e2a5c074cc559ed0f19a4880ae171a44b0039a5d3caadfd326db714fc

    • SHA512

      52c22c0b1d8b8e1b69224e4164fb75d0b07b7b1f8fb6b9b843218f0c01cae0279fe45cecbb538b021ddb7e57c723917ae2f34186881db210c8b4953b7a2b0961

    • SSDEEP

      12288:NYeIrWr/qRigAyX/kngXFbjTLvaH28nZH19Iimg0VtxWvTbxzOObcizI/mofdEMa:NYeIrWr/qRigAyX/kngXFbjTLvaH28nZ

    Score
    10/10
    wshratexecutionpersistencetrojan

    • WSHRAT

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

      trojanwshrat

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Checks computer location settings

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

    • Drops startup file

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    • 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 Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

PowerShell

1
T1059.001

JavaScript

1
T1059.007

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Resource Development

Reconnaissance

Tasks