MALICIOUS — virussign.com_958d17c886de929a77b225978075cc90.vir
MALICIOUS — virussign.com_958d17c886de929a77b225978075cc90.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (91/100), attributed to the Virlock family. 5 of 55 detection engines flagged it.
Identification
- SHA-256:
2821c6252181b51324192c79797901a2b094cefb9bf3f54f6b95a9c557cc022c - SHA-1:
8156cbb5dfadd606cfe83f2c396162accda202ee - MD5:
958d17c886de929a77b225978075cc90 - imphash:
a846730fe65f16c10fa5070663027602 - ssdeep:
12288:xdtKuPGB1suW7iH9DWDWdQwNXZDxJPDvvhwICy3iFm:xNssFC3QuJxkm - TLSH:
T1774BE07818F59CDFF6699BA70E01BA5C80C8361E5CCFC6951983C54EABE911F8C1B908 - Submitted as: virussign.com_958d17c886de929a77b225978075cc90.vir
- File type: pe · Size: 495104 bytes
- Verdict: malicious (91/100) · Family: Virlock
Source: VirusSign · first seen 2026-08-20T00:00:00.000Z · SHA-256 verified
Detections (5 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-sections:.text
- ClamAV (daily): Win.Virus.Virlock-6804475-0
- Microsoft Defender: Trojan:Win32/Mikey.HNB!MTB
- Emsisoft (Emergency Kit): Win32.Virlock.Gen.1
- Kaspersky (KVRT): Virus.Win32.PolyRansom.b
Why this verdict
The malicious score of 91/100 is the fusion of 3 weighted signals:
- ClamAV (daily) flagged Win.Virus.Virlock-6804475-0 (rule
Win.Virus.Virlock-6804475-0) - engine signal, weight 0.90, confidence 0.95 - Contacted 21 external host(s) at runtime (16 HTTP) - network signal, weight 0.40, confidence 0.80
- Packing/obfuscation: high-entropy-sections:.text - static signal, weight 0.25, confidence 0.55
Dynamic analysis (windows)
17 behavior events · 0 ATT&CK techniques · 0 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
- windows.msn.com
- licensing.mp.microsoft.com
- oneocsp.microsoft.com
- www.msn.com
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=1787849456&P2=404&P3=2&P4=kogPyXGsZVJPg7mrzkKUXAu0Y3ONHRyD9NKbmOqCZ0mknb3O%2bYjjKcezHo4twL%2fLZ8otB8X41QewVvBKFWke0w%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 52.168.117.171
- 20.247.185.124
- 40.84.85.40
- 4.230.171.124
- 40.79.163.155
- 74.178.76.128
- 20.165.94.54
- 135.232.92.137
- 20.112.250.133
- 52.123.129.14
- 172.66.2.5
- 52.123.252.213
- 203.26.79.13
- 172.178.240.161
- 135.234.160.246
- 72.145.35.100
- 135.232.92.34
- 52.148.114.188
- 52.110.12.48
- 52.110.12.16
- 92.223.78.30
More Virlock samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report