BendyBear
MITRE ATT&CK: S0574 View on attack.mitre.org
Aliases: BendyBear
- First seen
- 2020-08-01 00:00:00
- Malware type
- downloader, loader
- Family
- Malware family
- Operating systems
- windows
- Profile updated
- 2026-07-07 15:31:28
Targeted industries: government-and-public-sector technology-and-telecommunications
Context
BendyBear is an x64 shellcode for a stage-zero implant designed to download malware from a C2 server. First discovered in August 2020, BendyBear shares a variety of features with Waterbear, malware previously attributed to the Chinese cyber espionage group BlackTech.
Detection coverage
- 112 Sigma rules
Malware & tools used
- Deobfuscate/Decode Files or Information (attack-pattern)
- Ingress Tool Transfer (attack-pattern)
- Time Based Checks (attack-pattern)
- Junk Data (attack-pattern)
- Non-Standard Port (attack-pattern)
- Polymorphic Code (attack-pattern)
- Symmetric Cryptography (attack-pattern)
- Query Registry (attack-pattern)
- Encrypted/Encoded File (attack-pattern)
- Native API (attack-pattern)
- System Time Discovery (attack-pattern)
Reports & references
- MITRE ATT&CK — S0574 (report)
- Palo Alto Unit 42 — Bendybear Shellcode Blacktech (report)