MALICIOUS — d760d5a1ca01c786de2e81564ecad7cb379f7dbf0d07df2a93b50c902356dd27
MALICIOUS — d760d5a1ca01c786de2e81564ecad7cb379f7dbf0d07df2a93b50c902356dd27 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:
d760d5a1ca01c786de2e81564ecad7cb379f7dbf0d07df2a93b50c902356dd27 - SHA-1:
6d3d6772ac61db1926060579a3ff4ab1494b1fce - MD5:
42cfa3aaa5ae923b2fe0498ea5483874 - imphash:
0c75723fedd9c27bef321a9d944591c8 - ssdeep:
384:fo9q5pG7Vbjz0QhuvmtSh/6kTMklKBcdDtI7JliSwlmerfVjuujQA+CJwTeefxi:GqDSbP0w+mFko/B8I7JUSiVfVyLA+K4Y - TLSH:
T1282AB0AE119546AEDBBFC03D2841962F5CD6E13C7D2389481A142A9A18ECBF37493C11 - Submitted as: d760d5a1ca01c786de2e81564ecad7cb379f7dbf0d07df2a93b50c902356dd27
- File type: pe · Size: 21876 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: Trojan:Win32/Androm!pz
- Emsisoft (Emergency Kit): Gen:Trojan.Heur.D.bmHfbyRbNDc
- Trellix Stinger (McAfee): Agent-FQY!42CFA3AAA5AE
- Kaspersky (KVRT): HEUR:Trojan.Win32.Agent.gen
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 11 weighted signals:
- ClamAV (daily) flagged Win.Malware.Amhfbyrbndc-9891058-0 (rule
Win.Malware.Amhfbyrbndc-9891058-0) - engine signal, weight 0.90, confidence 0.95 - Memory forensics: 2 finding(s), e.g. SSDT hook (rule
windows.ssdt.SSDT) - memory signal, weight 0.50, confidence 0.85 - 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 25 external host(s) at runtime (27 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
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- oneocsp.microsoft.com
- settings-win.data.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\ldqbP.exe -
a7df976d16a29275ed33d649f19b29f3b1ce145965d0a97022433841d1fb7945 - d28ed639bdb2a576e71f9b9acc979080a272c21d3ead5e973c484cf97026b632 -
d28ed639bdb2a576e71f9b9acc979080a272c21d3ead5e973c484cf97026b632
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/fa5c4269-9d03-4a47-8d97-be6931f0b22c/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/fa5c4269-9d03-4a47-8d97-be6931f0b22c?P1=1787874376&P2=404&P3=2&P4=EvE2S4KrcFeAnRwmfvRDf8J5IJWBrPphI2O8F35IkIdg5NJJUV%2fHeI%2bxK5ggSADXx9sBROJ8qDMCI5jE7jCvvQ%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=1787874413&P2=404&P3=2&P4=dzr90EHDw15o81FngpdwSbL4VtwN%2bwXBENwvbjCBzDyETMllymjnqBqgr0gN%2fthdO112xaXLVDp%2bhf1tzVrBAg%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/9c0462dd-f6cd-4ff7-a7ac-708d0e9dadc5?P1=1787271147&P2=404&P3=2&P4=RCXN%2fjeJwhNnYWQrm5PCrMLvc72DPVcBHkyj6MoBb2W1FaORuvotIkrfmG9VElpZyFzf05OalpkO%2f5a45Dw0Dg%3d%3d&cacheHostOrigin=1D.tlu.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/b56480f9-8215-4de7-ba7e-8e690088d21d?P1=1787270715&P2=404&P3=2&P4=h6XyBm5B1WgntlCXQZSioMh1ZAnTUowJZiiWvGWyzEiOkF7qnizZoeyB58IXQRxvgsvwWi6tslrHNPMbd5Lsmg%3d%3d&cacheHostOrigin=1D.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- test.besthotel360.com
Embedded IP addresses
- 13.69.109.131
- 52.253.84.76
- 40.84.97.4
- 4.230.171.124
- 74.179.77.204
- 20.165.94.54
- 20.42.65.84
- 74.178.240.61
- 20.112.250.133
- 52.123.128.14
- 4.150.223.109
- 172.178.240.161
- 74.179.71.159
- 203.26.79.13
- 52.148.114.188
- 52.182.141.63
- 51.132.193.105
- 85.210.193.152
- 48.192.143.121
- 20.42.72.131
- 52.182.143.212
- 51.104.15.253
- 52.110.12.51
- 72.154.7.17
- 52.110.12.3
More Amhfbyrbndc samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report