HackTool - CreateMiniDump Execution

Hunt Hypothesis

Detects the use of CreateMiniDump hack tool used to dump the LSASS process memory for credential extraction on the attacker’s machine

Detection Rule

Sigma (Original)

title: HackTool - CreateMiniDump Execution
id: 36d88494-1d43-4dc0-b3fa-35c8fea0ca9d
status: test
description: Detects the use of CreateMiniDump hack tool used to dump the LSASS process memory for credential extraction on the attacker's machine
references:
    - https://ired.team/offensive-security/credential-access-and-credential-dumping/dumping-lsass-passwords-without-mimikatz-minidumpwritedump-av-signature-bypass
author: Florian Roth (Nextron Systems)
date: 2019-12-22
modified: 2024-11-23
tags:
    - attack.credential-access
    - attack.t1003.001
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - Image|endswith: '\CreateMiniDump.exe'
        - Hashes|contains: 'IMPHASH=4a07f944a83e8a7c2525efa35dd30e2f'
    condition: selection
falsepositives:
    - Unknown
level: high

KQL (Azure Sentinel)

imProcessCreate
| where TargetProcessName endswith "\\CreateMiniDump.exe" or TargetProcessIMPHASH startswith "4a07f944a83e8a7c2525efa35dd30e2f"

Required Data Sources

False Positive Guidance

• Unknown

MITRE ATT&CK Context

• Tactic: Credential Access
• Technique: T1003.001 — T1003.001

References

• https://ired.team/offensive-security/credential-access-and-credential-dumping/dumping-lsass-passwords-without-mimikatz-minidumpwritedump-av-signature-bypass
• SigmaHQ Rule