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Overview

overview

8

Static

static

1

skuld.bat

windows7-x64

8

skuld.bat

windows10-2004-x64

8

Sharing

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General

  • Target

    skuld.bat

  • Size

    13.0MB

  • Sample

    240629-2qxt3asanp

  • MD5

    441100cf63c807c0d4f359c64499ffa6

  • SHA1

    f65d189e9d35cef146f7e04b603032123f931691

  • SHA256

    70fdc6e91d6f0b7a3e72638bda9333eabb83a949e38216d52952629f98b1317c

  • SHA512

    de0352fad3f2df48638036052a29173328ca1a3ab119b2707ae982833914685f7088b9d4cbcbe2eb7f2a8270c76e3731c1d854568112c0c8d41b89b54c7b2d43

  • SSDEEP

    49152:KSOtTyTd7XtPt/Ws8crF3fLk3ReLdn5vq/5cQSo33D0gaHmCFMaXmwKbiifdT+td:Kw

Score
8/10
executionpersistenceprivilege_escalationspyware

Malware Config

Targets

    • Target

      skuld.bat

    • Size

      13.0MB

    • MD5

      441100cf63c807c0d4f359c64499ffa6

    • SHA1

      f65d189e9d35cef146f7e04b603032123f931691

    • SHA256

      70fdc6e91d6f0b7a3e72638bda9333eabb83a949e38216d52952629f98b1317c

    • SHA512

      de0352fad3f2df48638036052a29173328ca1a3ab119b2707ae982833914685f7088b9d4cbcbe2eb7f2a8270c76e3731c1d854568112c0c8d41b89b54c7b2d43

    • SSDEEP

      49152:KSOtTyTd7XtPt/Ws8crF3fLk3ReLdn5vq/5cQSo33D0gaHmCFMaXmwKbiifdT+td:Kw

    Score
    8/10
    executionpersistenceprivilege_escalationspyware

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • 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.

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

PowerShell

2
T1059.001

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Tasks