MALICIOUS — 867f5ffbdd89360e2e93c8e81138bfbc48fceb08f663eaedf30998319a720ef0
MALICIOUS — 867f5ffbdd89360e2e93c8e81138bfbc48fceb08f663eaedf30998319a720ef0 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Amhfbyrbndc family. 8 of 55 detection engines flagged it, exhibiting 4 ATT&CK techniques.
Identification
- SHA-256:
867f5ffbdd89360e2e93c8e81138bfbc48fceb08f663eaedf30998319a720ef0 - SHA-1:
582a75476cede24c7687e896462542c683ea6675 - MD5:
16f5bd458d21f6e1967c2e2ab1baa13c - imphash:
0c75723fedd9c27bef321a9d944591c8 - ssdeep:
384:fo9q5pG7Vbjz0QhuvmtSh/6kTMklKBcdDtI7JliSwlmerfVjuujQA+CJwE55tx:GqDSbP0w+mFko/B8I7JUSiVfVyLA+KTb - TLSH:
T1802AB05D119440E9EBBF812D18466B1F5CC7E3387D2389485A246A9B1CDDAF368D3C21 - Submitted as: 867f5ffbdd89360e2e93c8e81138bfbc48fceb08f663eaedf30998319a720ef0
- File type: pe · Size: 21544 bytes
- Verdict: malicious (99/100) · Family: Amhfbyrbndc
Detections (8 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): UPX
- ClamAV (daily): Win.Malware.Amhfbyrbndc-9891058-0
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- Detect It Easy (packer/type): DIE:Microsoft Linker
- Microsoft Defender: flagged
- Emsisoft (Emergency Kit): Gen:Trojan.Heur.D.bmHfbyRbNDc
- Trellix Stinger (McAfee): Agent-FQY!16F5BD458D21
- Kaspersky (KVRT): HEUR:Trojan.Win32.Agent.gen
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 10 weighted signals:
- ClamAV (daily) flagged Win.Malware.Amhfbyrbndc-9891058-0 (rule
Win.Malware.Amhfbyrbndc-9891058-0) - engine signal, weight 0.90, confidence 0.95 - Observed at runtime: Windows Service (T1543.003) (rule
Windows Service) - dynamic signal, weight 0.40, confidence 0.90 - 1 behavioral detection(s): Windows Service Installation [medium] (rule
tl-service-install) - dynamic signal, weight 0.40, confidence 0.90 - Contacted 32 external host(s) at runtime (28 HTTP) - network signal, weight 0.40, confidence 0.80
- YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule
JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.35, confidence 0.70 - Detect It Easy (packer/type) flagged DIE:Microsoft Linker (rule
DIE:Microsoft Linker) - engine signal, weight 0.35, confidence 0.70 - communicate over HTTP (rule
communicate over HTTP) - capa signal, weight 0.30, confidence 0.60 - Packing/obfuscation: UPX, high-entropy-sections:UPX1, Microsoft Linker - static signal, weight 0.25, confidence 0.55
- Dropped 1 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Dynamic analysis (windows)
277 behavior events · 2 ATT&CK techniques · 2 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- test.besthotel360.com
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- settings-win.data.microsoft.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- oneocsp.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\QXXdpNiFm4B5.exe -
4409624e14eeab62331c6f88fde0783142c569241b122c994937c0af3ee7c730 - 08df7a524cef6f07324f8f0ab0b1ecc07de890f8cac2e787dc9b58489d56b717 -
08df7a524cef6f07324f8f0ab0b1ecc07de890f8cac2e787dc9b58489d56b717
Embedded URLs
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787797269&P2=404&P3=2&P4=iBI1vuTuZaTifY9jFjzI0ck%2fYCnVvdRTKjkFKqbrehAKmYNz%2f33udd6vtgOuYQ3kNkkWrSeK4IgLjUu320JHkA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/c74a5353-3e6a-42b7-94d6-9b96c560c89a/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/c74a5353-3e6a-42b7-94d6-9b96c560c89a?P1=1787797326&P2=404&P3=2&P4=HbgxCtU0NwKuIano1FekySCnQZunHckfKkOEueahBitjXVQJEjCYG9YFexgp61Dss3Q0gpC8C2T40b8nUhlvwQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/9c0462dd-f6cd-4ff7-a7ac-708d0e9dadc5/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/b56480f9-8215-4de7-ba7e-8e690088d21d/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/9c0462dd-f6cd-4ff7-a7ac-708d0e9dadc5?P1=1787194010&P2=404&P3=2&P4=V5LNqi7EovFYS%2bHgYABmZLCMOJAiWZlIMmiKT8e1jmmpV1MrpS8MgJzii2KXxsMiFgwqyXAHyaTlwBRHIaIRmw%3d%3d&cacheHostOrigin=1D.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/b56480f9-8215-4de7-ba7e-8e690088d21d?P1=1787193554&P2=404&P3=2&P4=h%2bexMg5cvfnpVPnG3dH0mibt9tr9NyNpnX%2bb9xYFpWtNGIlCwkmmXmu87t7e5GBS4HFb%2bslUf4fEE0r4TfQmwA%3d%3d&cacheHostOrigin=1D.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- test.besthotel360.com
Embedded IP addresses
- 57.154.63.210
- 4.150.223.113
- 52.123.252.194
- 4.230.171.124
- 4.144.132.114
- 85.210.193.152
- 74.178.76.128
- 13.69.109.130
- 74.178.76.54
- 20.165.94.63
- 20.112.250.133
- 40.99.133.242
- 40.103.64.242
- 52.123.129.14
- 52.123.252.245
- 40.99.133.210
- 20.184.175.2
- 52.123.252.203
- 203.26.79.13
- 172.178.240.161
- 52.123.252.247
- 74.179.71.159
- 52.123.252.192
- 52.148.114.188
- 72.153.5.62
More Amhfbyrbndc samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report