MALICIOUS — 91c68096abdcd92fc826a432db609c6fffbb98e7c32ea596cf1562ea279e9d5f
MALICIOUS — 91c68096abdcd92fc826a432db609c6fffbb98e7c32ea596cf1562ea279e9d5f is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Amhfbyrbndc family. 8 of 52 detection engines flagged it, exhibiting 4 ATT&CK techniques.
Identification
- SHA-256:
91c68096abdcd92fc826a432db609c6fffbb98e7c32ea596cf1562ea279e9d5f - SHA-1:
9691117913269d244465b7998ca8aa703d26e3a0 - MD5:
6cafee7a2d8748546c595755f01fbaf6 - imphash:
0c75723fedd9c27bef321a9d944591c8 - ssdeep:
384:fo9q5pG7Vbjz0QhuvmtSh/6kTMklKBcdDtI7JliSwlmerfVjuujQA+CJwTeefx5v:GqDSbP0w+mFko/B8I7JUSiVfVyLA+K4P - TLSH:
T1B92ABFAE519146ADDBFFC06D2801966F5CD6F13D2D238A481A182A9A1CECBF37493811 - Submitted as: 91c68096abdcd92fc826a432db609c6fffbb98e7c32ea596cf1562ea279e9d5f
- File type: pe · Size: 21874 bytes
- Verdict: malicious (99/100) · Family: Amhfbyrbndc
Detections (8 of 52 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: Trojan:Win32/Androm!pz
- Emsisoft (Emergency Kit): Gen:Trojan.Heur.D.bmHfbyRbNDc
- Trellix Stinger (McAfee): Agent-FQY!6CAFEE7A2D87
- 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 - Dropped a malicious payload (Amhfbyrbndc): 3kwGwl2U8Q1ec.exe - dynamic signal, weight 0.62, confidence 0.90
- 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 35 external host(s) at runtime (18 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
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Dynamic analysis (windows)
268 behavior events · 2 ATT&CK techniques · 2 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- searchapp.bundleassets.example
- test.besthotel360.com
- to-do.office.com
- staging.to-do.officeppe.com
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
- officeclient.microsoft.com
- settings-win.data.microsoft.com
- licensing.mp.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\3kwGwl2U8Q1ec.exe -
dd95269d3a3dc3ff210377f96498ed7aa4438c80058f5af9116783fb20411312 - 565b2e56b6409addb2887b61554d86d5064df57e21c61e0bf9e02183b01dc8dc -
565b2e56b6409addb2887b61554d86d5064df57e21c61e0bf9e02183b01dc8dc
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=msedge.f.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787392894&P2=404&P3=2&P4=fMoGuUQaw2RO%2foyUYQb64trMkASArAvkXVda1d2KeV2lcljg5FXD9uO3egOxm18cRIysYZX%2fPapRB2pdVsrBiQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- test.besthotel360.com
Embedded IP addresses
- 72.145.35.113
- 13.89.179.12
- 52.110.12.2
- 20.42.179.192
- 20.247.184.142
- 4.230.171.124
- 135.233.95.144
- 52.182.143.212
- 20.76.201.171
- 135.233.45.223
- 52.110.12.54
- 85.210.193.152
- 20.236.44.162
- 4.150.223.104
- 52.123.252.241
- 135.232.92.97
- 85.210.196.11
- 172.178.240.163
- 52.123.252.220
- 104.46.162.224
- 92.223.78.30
- 135.233.95.135
- 162.159.36.2
- 40.84.97.4
- 135.232.92.137
More Amhfbyrbndc samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report