Sofacy Trojan Loader Activity

title: Sofacy Trojan Loader Activity
id: ba778144-5e3d-40cf-8af9-e28fb1df1e20
status: test
description: Detects Trojan loader activity as used by APT28
references:
    - https://researchcenter.paloaltonetworks.com/2018/02/unit42-sofacy-attacks-multiple-government-entities/
    - https://www.hybrid-analysis.com/sample/ff808d0a12676bfac88fd26f955154f8884f2bb7c534b9936510fd6296c543e8?environmentId=110
    - https://twitter.com/ClearskySec/status/960924755355369472
author: Florian Roth (Nextron Systems), Jonhnathan Ribeiro, oscd.community
date: 2018-03-01
modified: 2023-05-31
tags:
    - attack.execution
    - attack.stealth
    - attack.g0007
    - attack.t1059.003
    - attack.t1218.011
    - car.2013-10-002
    - detection.emerging-threats
logsource:
    category: process_creation
    product: windows
detection:
    selection_path:
        Image|endswith: '\rundll32.exe'
        CommandLine|contains:
            - '%LOCALAPPDATA%'
            - '\AppData\Local\'
    selection_extensions:
        - CommandLine|contains: '.dat",'
        - CommandLine|endswith:
              - '.dll #1'
              - '.dll" #1'
              - '.dll",#1'
    filter_main_exclude_temp:
        CommandLine|contains: '\AppData\Local\Temp\'
    condition: all of selection_* and not 1 of filter_main_*
falsepositives:
    - Unknown
level: high