name: Suspicious Process File Path
id: 9be25988-ad82-11eb-a14f-acde48001122
version: 1
date: '2021-05-05'
author: Teoderick Contreras, Splunk
status: production
type: TTP
description: The following analytic will detect a suspicious process running in a
  file path where a process is not commonly seen and is most commonly used by malicious
  software. This behavior has been used by adversaries where they drop and run an
  exe in a path that is accessible without admin privileges.
data_source:
- Sysmon Event ID 1
search:
  selection1:
    Processes.process_path.file_path: '*\\Users\\Administrator\\Music\\*'
  selection2:
    Processes.process_path:
    - '*\\windows\\fonts\\*'
    - '*\\windows\\temp\\*'
    - '*\\users\\public\\*'
    - '*\\windows\\debug\\*'
  selection3:
    Processes.process_path.file_path: '*\\Windows\\servicing\\*'
  selection4:
    Processes.process_path.file_path: '*\\Users\\Default\\*'
  selection5:
    Processes.process_path.file_path: '*Recycle.bin*'
  selection6:
    Processes.process_path: '*\\Windows\\Media\\*'
  selection7:
    Processes.process_path: \\Windows\\repair\\*
  selection8:
    Processes.process_path: '*\\temp\\*'
  selection9:
    Processes.process_path: '*\\PerfLogs\\*'
  condition: selection1 or selection2 or selection3 or selection4 or selection5 or
    selection6 or selection7 or selection8 or selection9
how_to_implement: To successfully implement this search you need to be ingesting information
  on process that include the name of the process responsible for the changes from
  your endpoints into the `Endpoint` datamodel in the `Processes` node.
known_false_positives: Administrators may allow execution of specific binaries in
  non-standard paths. Filter as needed.
references:
- https://www.trendmicro.com/vinfo/hk/threat-encyclopedia/malware/trojan.ps1.powtran.a/
- https://www.microsoft.com/security/blog/2022/01/15/destructive-malware-targeting-ukrainian-organizations/
- https://twitter.com/pr0xylife/status/1590394227758104576
tags:
  analytic_story:
  - Data Destruction
  - Double Zero Destructor
  - XMRig
  - Remcos
  - WhisperGate
  - Hermetic Wiper
  - Industroyer2
  - DarkCrystal RAT
  - Brute Ratel C4
  - AgentTesla
  - Qakbot
  - IcedID
  - Trickbot
  - Azorult
  - Prestige Ransomware
  asset_type: Endpoint
  confidence: 50
  impact: 70
  message: Suspicioues process $Processes.process_path.file_path$ running from suspicious
    location
  mitre_attack_id:
  - T1543
  observable:
  - name: dest
    type: Endpoint
    role:
    - Victim
  - name: Processes.process_path.file_path
    type: File Name
    role:
    - Attacker
  product:
  - Splunk Enterprise
  - Splunk Enterprise Security
  - Splunk Cloud
  risk_score: 35
  security_domain: endpoint
tests:
- name: True Positive Test
  attack_data:
  - data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/malware/xmrig_miner/windows-sysmon.log
    source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
    sourcetype: xmlwineventlog