Sigma Rule Library

Lazarus APT DLL Sideloading Activity

Detects sideloading of trojanized DLLs used in Lazarus APT campaign in the case of a Spanish aerospace company

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Detection logic

selection_mscoree

Image: C:\ProgramShared\PresentationHost.exe
ImageLoaded: :\ProgramShared\mscoree.dll

selection_colorui

Image: C:\ProgramData\Adobe\colorcpl.exe
ImageLoaded: C:\ProgramData\Adobe\colorui.dll

selection_mapistub

Image: C:\ProgramData\Oracle\Java\fixmapi.exe
ImageLoaded: C:\ProgramData\Oracle\Java\mapistub.dll

selection_hid

Image: C:\ProgramData\Adobe\ARM\tabcal.exe
ImageLoaded: C:\ProgramData\Adobe\ARM\HID.dll

Condition

1 of selection_*

Raw YAML

title: Lazarus APT DLL Sideloading Activity
id: 24007168-a26b-4049-90d0-ce138e13a5cf
status: test
description: Detects sideloading of trojanized DLLs used in Lazarus APT campaign in the case of a Spanish aerospace company
references:
    - https://www.welivesecurity.com/en/eset-research/lazarus-luring-employees-trojanized-coding-challenges-case-spanish-aerospace-company/
    - https://www.bleepingcomputer.com/news/security/lazarus-hackers-breach-aerospace-firm-with-new-lightlesscan-malware/
author: Thurein Oo, Nasreddine Bencherchali (Nextron Systems)
date: 2023-10-18
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.execution
    - attack.stealth
    - attack.t1574.001
    - attack.g0032
    - detection.emerging-threats
logsource:
    product: windows
    category: image_load
detection:
    selection_mscoree:
        Image: 'C:\ProgramShared\PresentationHost.exe'
        ImageLoaded: ':\ProgramShared\mscoree.dll'
    selection_colorui:
        Image: 'C:\ProgramData\Adobe\colorcpl.exe'
        ImageLoaded: 'C:\ProgramData\Adobe\colorui.dll'
    selection_mapistub:
        Image: 'C:\ProgramData\Oracle\Java\fixmapi.exe'
        ImageLoaded: 'C:\ProgramData\Oracle\Java\mapistub.dll'
    selection_hid:
        Image: 'C:\ProgramData\Adobe\ARM\tabcal.exe'
        ImageLoaded: 'C:\ProgramData\Adobe\ARM\HID.dll'
    condition: 1 of selection_*
falsepositives:
    - Unlikely
level: high

False positives

  • Unlikely

References

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