MALICIOUS — 58793ca843f8f47f1f259dab918401f9c0664148a0bfee054455bff45b1aac1c
MALICIOUS — 58793ca843f8f47f1f259dab918401f9c0664148a0bfee054455bff45b1aac1c 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:
58793ca843f8f47f1f259dab918401f9c0664148a0bfee054455bff45b1aac1c - SHA-1:
7841e7e48b9d3f638bb55ececd1e8dca9cbc0f1e - MD5:
ff3f804bd138bc953b320f8b8035e464 - imphash:
0c75723fedd9c27bef321a9d944591c8 - ssdeep:
384:fo9q5pG7Vbjz0QhuvmtSh/6kTMklKBcdDtI7JliSwlmerfVjuujQA+CJw+:GqDSbP0w+mFko/B8I7JUSiVfVyLA+KB - TLSH:
T17E2ABF1C01D144BDD7BF802E64096B4E58E7E12CBA228A942D286B571DDC6F378D2C12 - Submitted as: 58793ca843f8f47f1f259dab918401f9c0664148a0bfee054455bff45b1aac1c
- File type: pe · Size: 21619 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!FF3F804BD138
- 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 27 external host(s) at runtime (26 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)
274 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
- www.msn.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\XG0jHQ7cGvQ.exe -
93d3f17e5356d9e9765a45e01668cf3c956f2aa5792b975c446922947b223ad0 - c37614a0adb2b32abc56fbddd1731b2d879266cc32e0fc534b94987f353c32d1 -
c37614a0adb2b32abc56fbddd1731b2d879266cc32e0fc534b94987f353c32d1
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=1787921148&P2=404&P3=2&P4=FVPh6KGoAMGwiNSATUSrNWTUYGfeLOn3%2bbyfC5aCJwFp6qAViZfjW9GMDSSxEbtruFYlbZGDoCaqvJCy7dpx5A%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/51d86688-616b-47e3-abeb-3df16a1583c5/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/51d86688-616b-47e3-abeb-3df16a1583c5?P1=1787921193&P2=404&P3=2&P4=auOCcdqRKdTLEMhFFXEbAQtMQo98XNwXMpYZPXgGNqcZSjIT1azj5YpFN43fztrVj18lvZ2rrd%2b%2fUa6Oc1nBJw%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=1787317948&P2=404&P3=2&P4=nLxJiQ%2fru6HxD5SZlNnV%2bo1n2PV2apyEj78AwE5Dma%2bTUn3XfsB0SbxYcC%2bbq0H7vY1X6p5R7mNZqofMT1L4XA%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=1787317457&P2=404&P3=2&P4=QoxKbLNPWQeJ54vIXc%2fTRaJE9EDCvQNRJmq8l3KzyFY0SuJ04tqhW46CtXuX8%2bLEAaS8OQTdsUODCoqBTBKauA%3d%3d&cacheHostOrigin=1D.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- test.besthotel360.com
Embedded IP addresses
- 20.42.73.25
- 52.123.252.226
- 20.42.179.192
- 4.230.171.124
- 52.230.60.54
- 52.123.252.194
- 74.179.71.159
- 74.178.240.61
- 13.69.116.104
- 74.178.240.51
- 20.165.94.63
- 52.123.128.14
- 20.236.44.162
- 52.123.129.14
- 203.26.79.13
- 135.234.160.246
- 92.223.78.30
- 52.148.114.188
- 72.145.35.103
- 52.168.117.170
- 172.170.180.133
- 20.42.73.31
- 4.209.250.170
- 4.150.223.105
- 52.168.117.168
More Amhfbyrbndc samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report