MALICIOUS — virussign.com_b7a455f8cdbb020d25d9162bf1074fb0.vir
MALICIOUS — virussign.com_b7a455f8cdbb020d25d9162bf1074fb0.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (95/100), attributed to the Virlock family. 5 of 55 detection engines flagged it.
Identification
- SHA-256:
24cc14645cfe3e20f5215e1c4bfa8f869ec314976d0942af8b711106474f2db3 - SHA-1:
ca41f4a63c5c5b85d06d812d07614a2bf415ef14 - MD5:
b7a455f8cdbb020d25d9162bf1074fb0 - imphash:
cbaf6021fc4607dc4853466d290b06ca - ssdeep:
12288:jdJecQcP/OKek5NGZchSGsucZHVtR4jO+0Y/:jXe3cuKVNacZsukHVt7G - TLSH:
T1404A02F74DC6245AC1DDA3B77ADEB2BF6801C4802BD362D26C1B261F25594A38D4423B - Submitted as: virussign.com_b7a455f8cdbb020d25d9162bf1074fb0.vir
- File type: pe · Size: 445440 bytes
- Verdict: malicious (95/100) · Family: Virlock
Source: VirusSign · first seen 2026-08-19T00:00:00.000Z · 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: Ransom:Win32/ContiCrypt.LOD!MTB
- Emsisoft (Emergency Kit): Win32.Virlock.Gen.1
- Kaspersky (KVRT): Virus.Win32.PolyRansom.b
Why this verdict
The malicious score of 95/100 is the fusion of 4 weighted signals:
- ClamAV (daily) flagged Win.Virus.Virlock-6804475-0 (rule
Win.Virus.Virlock-6804475-0) - 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 - Contacted 23 external host(s) at runtime (17 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)
22 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=1787768911&P2=404&P3=2&P4=ErJaWCEXaNFwW2HTiB%2bWMqPXnXQxf7ZtviR0gK7UvN41HBK22%2fVYQrNoEd0SZnQLiKQTLhFPJPcDTVo%2b6nczJw%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
Embedded IP addresses
- 203.26.79.13
- 20.184.175.9
- 135.233.95.80
- 20.247.184.197
- 4.230.171.124
- 4.247.188.233
- 4.247.188.224
- 135.233.95.144
- 74.179.71.159
- 135.233.95.135
- 20.42.73.28
- 20.42.65.85
- 52.123.129.14
- 20.231.239.246
- 40.99.133.242
- 40.99.133.226
- 52.123.128.14
- 172.178.240.162
- 135.233.45.222
- 52.148.114.188
- 72.154.7.110
- 52.110.12.37
- 52.110.12.48
More Virlock samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report