HiddenFace
MITRE ATT&CK: S9023 View on attack.mitre.org
Aliases: NOOPDOOR, HiddenFace
- First seen
- 2021-01-01 00:00:00
- Malware type
- backdoor
- Family
- Malware family
- Operating systems
- windows
- Profile updated
- 2026-07-07 13:09:11
Targeted industries: education-and-nonprofits government-and-public-sector
Targeted regions: country_code:jp
Context
HiddenFace is a modular backdoor developed and used exclusively by MirrorFace since at least 2021. HiddenFace can communicate both actively and passively and has been used against political and academic targets.
Detection coverage
- 368 Sigma rules
Malware & tools used
- Scheduled Task (attack-pattern)
- Non-Standard Port (attack-pattern)
- Asymmetric Cryptography (attack-pattern)
- Internal Proxy (attack-pattern)
- Encrypted/Encoded File (attack-pattern)
- Mutual Exclusion (attack-pattern)
- Non-Application Layer Protocol (attack-pattern)
- Time Based Checks (attack-pattern)
- Fallback Channels (attack-pattern)
- System Owner/User Discovery (attack-pattern)
- Data from Local System (attack-pattern)
- Ingress Tool Transfer (attack-pattern)
- Dynamic API Resolution (attack-pattern)
- Security Software Discovery (attack-pattern)
- Timestomp (attack-pattern)
- Domain Generation Algorithms (attack-pattern)
- System Information Discovery (attack-pattern)
- Process Discovery (attack-pattern)
- Process Injection (attack-pattern)
- Symmetric Cryptography (attack-pattern)
- Protocol Tunneling (attack-pattern)
- Deobfuscate/Decode Files or Information (attack-pattern)
- Modify Registry (attack-pattern)
- Execution Guardrails (attack-pattern)
- Windows Host Firewall (attack-pattern)
Used by threat actors
- Operation AkaiRyū (campaign)
- MirrorFace (threat-actor)
Reports & references
- Trend Micro — Lodeinfo Campaign Of Earth Kasha (report)
- blogs.jpcert.or.jp — Mirrorface Attack Against Japanese Organisations (report)
- Trend Micro — Earth Kasha Updates Ttps (report)
- jsac.jpcert.or.jp — Jsac2024 2 7 Hara Shoji Higashi Vickie Su Nick Dai En (report)
- macnica.co.jp — Cyberespionage Report 2023 (report)
- malpedia.caad.fkie.fraunhofer.de — Win.Noopdoor (report)
- MITRE ATT&CK — S9023 (report)
- jsac.jpcert.or.jp — Jsac2024 2 8 Breitenbacher En (report)