Detection rules › Sigma

Lazarus APT DLL Sideloading Activity

Status
test
Severity
high
Log source
category image_load, product windows
Author
Thurein Oo, Nasreddine Bencherchali (Nextron Systems)
Source
github.com/SigmaHQ/sigma

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

Known false positives

  • Unlikely

MITRE ATT&CK coverage

Telemetry coverage

ProviderRecord / event type
SysmonEvent ID 7: Image loaded

Rule body

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

Stages and Predicates

Stage 0: condition

1 of selection_*

Stage 1: selection_mscoree

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

Stage 2: selection_colorui

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

Stage 3: selection_mapistub

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

Stage 4: selection_hid

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

Indicators

These rows show field, operator, and value matches.

FieldKindValuesSearch
Imageeq
  • C:\ProgramData\Adobe\ARM\tabcal.exe
  • C:\ProgramData\Adobe\colorcpl.exe
  • C:\ProgramData\Oracle\Java\fixmapi.exe
  • C:\ProgramShared\PresentationHost.exe
field:"Image" kind:eq
ImageLoadedeq
  • :\ProgramShared\mscoree.dll
  • C:\ProgramData\Adobe\ARM\HID.dll
  • C:\ProgramData\Adobe\colorui.dll
  • C:\ProgramData\Oracle\Java\mapistub.dll
field:"ImageLoaded" kind:eq