Overview

overview

10

Static

static

1

e8b589ab58...e27.js

windows7-x64

10

e8b589ab58...e27.js

windows10-2004-x64

10

Sharing

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General

  • Target

    e8b589ab580205d0a3cf61367dc5e818aa2a7a90973b95de55502ff6c5853e27.js

  • Size

    614KB

  • Sample

    240508-dhr2vahg46

  • MD5

    df7e2ec3ee72ab7a80d2542807ea0c25

  • SHA1

    21f70badfff73f0b55d417d08438236f3e7cfd52

  • SHA256

    e8b589ab580205d0a3cf61367dc5e818aa2a7a90973b95de55502ff6c5853e27

  • SHA512

    fda45ee869d1f5f41a0f4846072bc79680474df60fdc2976be6b5d0f886852010607755c5ccf9dde4f13ad848a8107ce2a591142f9d1b42c9f9698c9008c99a1

  • SSDEEP

    12288:bYeIrWr/qRigAyX/kngXFbjTLvaH28nZH19Iimg0VtxWvTbxzOObcizI/mofdEM+:bYeIrWr/qRigAyX/kngXFbjTLvaH28nT

Score
10/10
wshratexecutionpersistencetrojan

Malware Config

Extracted

Family

wshrat

C2

http://masterokrwh.duckdns.org:8426

Targets

    • Target

      e8b589ab580205d0a3cf61367dc5e818aa2a7a90973b95de55502ff6c5853e27.js

    • Size

      614KB

    • MD5

      df7e2ec3ee72ab7a80d2542807ea0c25

    • SHA1

      21f70badfff73f0b55d417d08438236f3e7cfd52

    • SHA256

      e8b589ab580205d0a3cf61367dc5e818aa2a7a90973b95de55502ff6c5853e27

    • SHA512

      fda45ee869d1f5f41a0f4846072bc79680474df60fdc2976be6b5d0f886852010607755c5ccf9dde4f13ad848a8107ce2a591142f9d1b42c9f9698c9008c99a1

    • SSDEEP

      12288:bYeIrWr/qRigAyX/kngXFbjTLvaH28nZH19Iimg0VtxWvTbxzOObcizI/mofdEM+:bYeIrWr/qRigAyX/kngXFbjTLvaH28nT

    Score
    10/10
    wshratexecutionpersistencetrojan

    • WSHRAT

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

      trojanwshrat

    • Blocklisted process makes network request

    • 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.

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

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

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Resource Development

Reconnaissance

Tasks