MALICIOUS — 3543cedfbf531ed8d23b6f1740b6524b240ab1e12aa4e2cb289c7d11f8a5f50e
MALICIOUS — 3543cedfbf531ed8d23b6f1740b6524b240ab1e12aa4e2cb289c7d11f8a5f50e is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (90/100), attributed to the Brontok family. 4 of 55 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
3543cedfbf531ed8d23b6f1740b6524b240ab1e12aa4e2cb289c7d11f8a5f50e - SHA-1:
3a7da18c6d849da7b814238f3629e505185c62da - MD5:
f652d33902a5f3525fc0a081e1538c30 - imphash:
d41d8cd98f00b204e9800998ecf8427e - ssdeep:
24576:BqUqUqUqUqUqUqUqUqUqUqUqUqUqUqUqUqUqUqUqUqUqUqk:l - TLSH:
T1A05BAE3B33F5BA10DFE3D6242FA5C15C0A89176AF80DA51195DE46880C46B37B826F1B - Submitted as: 3543cedfbf531ed8d23b6f1740b6524b240ab1e12aa4e2cb289c7d11f8a5f50e
- File type: pe · Size: 2309736 bytes
- Verdict: malicious (90/100) · Family: Brontok
Detections (4 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-sections: Teg Teg
- ClamAV (daily): Win.Worm.Brontok-9937872-0
- Microsoft Defender: Worm:Win32/Brontok.BJ@mm
- Emsisoft (Emergency Kit): Gen:Variant.Mikey.133326
MITRE ATT&CK
Why this verdict
The malicious score of 90/100 is the fusion of 3 weighted signals:
- ClamAV (daily) flagged Win.Worm.Brontok-9937872-0 (rule
Win.Worm.Brontok-9937872-0) - engine signal, weight 0.90, confidence 0.95 - communicate over HTTP (rule
communicate over HTTP) - capa signal, weight 0.30, confidence 0.60 - Packing/obfuscation: high-entropy-sections: Teg Teg - static signal, weight 0.25, confidence 0.55
Dynamic analysis (windows)
0 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
- licensing.mp.microsoft.com
- windows.msn.com
- oneocsp.microsoft.com
- settings-win.data.microsoft.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=1787815273&P2=404&P3=2&P4=NqazkDh38ewj9UZnzZQqUIFA3Awhcg9rEG6hH4RNUtLgvJLkfW5lZ5OCHbA5P7L%2bRnr1VawHhe7OlvMgXMuEsw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 20.184.175.2
- 20.247.184.197
- 85.210.196.11
- 4.230.171.124
- 48.211.4.16
- 74.178.76.128
- 135.233.95.135
- 4.150.223.100
- 20.231.239.246
- 40.99.134.2
- 52.123.129.14
- 52.168.117.169
- 203.26.79.13
- 72.153.5.133
- 52.148.114.188
- 74.178.76.44
- 125.56.205.34
- 125.56.205.17
- 52.110.12.14
- 52.110.12.5
More Brontok samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report