MALICIOUS — 1f8a850783b0b881b8ce550d983d1dbe4f34f3076c4ebcb28ef57c5bd6beaa9d
MALICIOUS — 1f8a850783b0b881b8ce550d983d1dbe4f34f3076c4ebcb28ef57c5bd6beaa9d is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (98/100), attributed to the C83B492E family. 4 of 55 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
1f8a850783b0b881b8ce550d983d1dbe4f34f3076c4ebcb28ef57c5bd6beaa9d - SHA-1:
f51637f7919e6ccee354e5ac9ed1ec6569078d9c - MD5:
33457a375dd4c6d1ec3906f5fcceadbe - imphash:
95122753ea27818b35f9b51859e4c692 - ssdeep:
24576:N2oo60HPdt+1CRiY2eOBvcj3u10dBj1QiZ76X98fGqxjX9AwdkGTB3EW8VDqgxRu:Qoa1taC070dZr6t9qrA8BRSH4tvSBpq - TLSH:
T1F95A238A66187B0CE2F6C5842D6901AFC082D4B7A738198B928FF15CB3DB57778211D7 - Submitted as: 1f8a850783b0b881b8ce550d983d1dbe4f34f3076c4ebcb28ef57c5bd6beaa9d
- File type: pe · Size: 1958400 bytes
- Verdict: malicious (98/100) · Family: C83B492E
Detections (4 of 55 engines)
- ClamAV (daily): Win.Malware.Zusy-9764479-0
- Microsoft Defender: Trojan:Win32/Salgorea!pz
- Emsisoft (Emergency Kit): Dump:Generic.Dacic.17983.C83B492E
- Kaspersky (KVRT): Trojan.Win32.Bingoml.ckfs
MITRE ATT&CK
Why this verdict
The malicious score of 98/100 is the fusion of 5 weighted signals:
- ClamAV (daily) flagged Win.Malware.Zusy-9764479-0 (rule
Win.Malware.Zusy-9764479-0) - engine signal, weight 0.90, confidence 0.95 - Memory forensics: 4 finding(s), e.g. process hidden from a listing (rule
windows.psxview.PsXView) - memory signal, weight 0.55, 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 24 external host(s) at runtime (27 HTTP) - network signal, weight 0.40, confidence 0.80
Dynamic analysis (windows)
98 behavior events · 1 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
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- licensing.mp.microsoft.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\B4B0.tmp -
12be663048d0b8ec8dc57a529da5e71eeb2817ee2a060d27af1c39f20d855a02 - 8acd660a4ddddd4ff67770fb708c6cf30ed6d0e3e8c1b6960e29ed5e5801f2e4 -
8acd660a4ddddd4ff67770fb708c6cf30ed6d0e3e8c1b6960e29ed5e5801f2e4
Embedded URLs
- http://schemas.microsoft.com/SMI/2005/WindowsSettings
- 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=1787875264&P2=404&P3=2&P4=GAxaPznfnDjoBWgWMcVTYbgPbsh7N6%2bb%2bKQQRLx3qgN9RuWgckO4B6TfKe%2fqRv6eUzBcy6bkVa8StMAhuIbOug%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=1787875311&P2=404&P3=2&P4=jzyYZz09yzhg4fwDJX41a1eLZCUugp0xTs35kbyo0JzVUIZPBaC0CB972DNMKEA%2f2fNU007cJgwOXLa%2bbnj5GQ%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=1787272014&P2=404&P3=2&P4=QThSyfEF5laOBekzc72Oq0u7Weuc5ue1%2fVVZM1ve6fRXS82gkpNgAukfGX9noNXXx0CEWPkxeI2guZkLtXNdhw%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=1787271571&P2=404&P3=2&P4=CHwenX9%2fh5EwOoVE%2fXWY%2bmd2G3hLDL7ThcIUKsRL9tjQafwR6j8mYkrfYu6u2fm0zVzU25AliIJLozBfFgZ4kQ%3d%3d&cacheHostOrigin=1D.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- 4.kr
- i.se
- schemas.microsoft.com
Embedded IP addresses
- 20.42.65.88
- 20.247.185.124
- 57.154.63.210
- 4.230.171.124
- 74.179.77.204
- 20.165.94.54
- 104.208.16.94
- 20.112.250.133
- 40.103.64.226
- 52.123.128.14
- 52.123.129.14
- 203.26.79.13
- 172.178.240.161
- 52.123.252.197
- 135.233.95.80
- 52.148.114.188
- 72.153.5.62
- 135.233.45.222
- 4.150.223.96
- 172.175.111.170
- 52.182.143.212
- 20.184.175.10
- 52.110.12.3
- 52.110.12.44
More C83B492E samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report