Overview

overview

10

Static

static

Executed Contract.js

windows7-x64

10

Executed Contract.js

windows10-2004-x64

10

Sharing

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General

  • Target

    Executed Contract.js

  • Size

    285KB

  • Sample

    230202-nlldksfh83

  • MD5

    eeacf758acc21133811bce63aa477ee7

  • SHA1

    d2ed9bfbfb8dd47ac3120efc757f43adf3ce3dbf

  • SHA256

    a7ff79a11115a66f2450844c4b115b799d388d7157ee9d2df27286c0e5acf7ce

  • SHA512

    fb97ce1cb831f48f5612976f8401d3eabd580ffb16375f24f53139cc3991a55028fe2a7668024c572b3a08f6e4ef4eca55bca974e07223e5b28901e650ff78b1

  • SSDEEP

    6144:7DrOg9pEJX1WPNSrV8iLgENxGVc+2dfpMAZL6sXZ7lorHawkkt:7DrOrJXAPGZxGVsl6mlsNt

Score
10/10
vjw0rmwshratcollectionpersistencespywarestealertrojanworm

Malware Config

Extracted

Family

wshrat

C2

http://auto.stevenpartners.com:23015

Targets

    • Target

      Executed Contract.js

    • Size

      285KB

    • MD5

      eeacf758acc21133811bce63aa477ee7

    • SHA1

      d2ed9bfbfb8dd47ac3120efc757f43adf3ce3dbf

    • SHA256

      a7ff79a11115a66f2450844c4b115b799d388d7157ee9d2df27286c0e5acf7ce

    • SHA512

      fb97ce1cb831f48f5612976f8401d3eabd580ffb16375f24f53139cc3991a55028fe2a7668024c572b3a08f6e4ef4eca55bca974e07223e5b28901e650ff78b1

    • SSDEEP

      6144:7DrOg9pEJX1WPNSrV8iLgENxGVc+2dfpMAZL6sXZ7lorHawkkt:7DrOrJXAPGZxGVsl6mlsNt

    Score
    10/10
    vjw0rmwshratcollectionpersistencespywarestealertrojanworm

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

      trojanwormvjw0rm

    • WSHRAT

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

      trojanwshrat

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Accesses Microsoft Outlook accounts

      collection

    • 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.

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Tasks