SUSPICIOUS — virussign.com_f7b5ae9dca8f20b248d46c8b2e1a18e0.vir
SUSPICIOUS — virussign.com_f7b5ae9dca8f20b248d46c8b2e1a18e0.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a suspicious verdict (48/100). 4 of 55 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
11e4bc2dd492d53ce776a9fbdf2fadeb7cbd8cf1083b40a52f1bdb649b2fe9cf - SHA-1:
38371b2c0c35beb1bd3195d0f4c1ad82cbd244dd - MD5:
f7b5ae9dca8f20b248d46c8b2e1a18e0 - imphash:
b888cea78f2f99b4a194d2bd7385893d - ssdeep:
1536:xxuRzMkmi+ypPhn27hl3PdFIyv30fKGLA9:x6zMBiH2tl3PLefK - TLSH:
T13735F146031408F7E8509962446EAC2F1B441ABC69FE2A836D87F76638A07DF847437E - Submitted as: virussign.com_f7b5ae9dca8f20b248d46c8b2e1a18e0.vir
- File type: pe · Size: 60416 bytes
- Verdict: suspicious (48/100)
Source: VirusSign · first seen 2026-08-19T00:00:00.000Z · SHA-256 verified
Detections (4 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): UPX
- Microsoft Defender: Trojan:Win32/Copak.GPAC!MTB
- Emsisoft (Emergency Kit): Gen:Variant.Barys.510186
- Kaspersky (KVRT): HEUR:Trojan.Win32.Generic
MITRE ATT&CK
Why this verdict
The suspicious score of 48/100 is the fusion of 3 weighted signals:
- Contacted 23 external host(s) at runtime (20 HTTP) - network signal, weight 0.40, confidence 0.80
- Packing/obfuscation: UPX, high-entropy-sections:UPX1 - static signal, weight 0.25, confidence 0.55
- Dropped 1 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
Dynamic analysis (windows)
110 behavior events · 0 ATT&CK techniques · 6 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
- oneocsp.microsoft.com
- www.msn.com
- settings-win.data.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\tsk_f3ffdf06cbca40f0.exe -
8e5d25cba464889063fc24edf2aa772ddd5d791b1d468193fa325af0ca3cb514 - 769a28396ce7b119b1fc457d5af45a2de09916b6315839fd11efbdf9dd5f2617 -
769a28396ce7b119b1fc457d5af45a2de09916b6315839fd11efbdf9dd5f2617 - 93f0abeff7cc35902339e4055d06de85e0e6328b1977cb1edae7e64c4efb81a0 -
93f0abeff7cc35902339e4055d06de85e0e6328b1977cb1edae7e64c4efb81a0 - 6577bced8e6b4a8c1b39f877a6ec08a1f4773a79ef02fbed78b32e00db406897 -
6577bced8e6b4a8c1b39f877a6ec08a1f4773a79ef02fbed78b32e00db406897 - 2da68a9b25ed9b57a5f9483646bcd9645bca24c073be6a938390092bed0a510b -
2da68a9b25ed9b57a5f9483646bcd9645bca24c073be6a938390092bed0a510b - 91d8ef29e9bbc77dc7d227d2ecc006c9b335427e84972847166978067c1c73ce -
91d8ef29e9bbc77dc7d227d2ecc006c9b335427e84972847166978067c1c73ce
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=1787771574&P2=404&P3=2&P4=ILvTsQnvKJESkqXeIW0jXlFyEpxrmGLTJMm162uvK3O3xmjUyamGvX75UMH2AHk%2falCek9BYbYn%2bWgm3GX5emA%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=1787771651&P2=404&P3=2&P4=kqShQoJANiAnCsHTN4QpZYsq0zwfSm9TUWY%2b8BpGnM4DlgsUiGeYNl57y0ADrqFUT%2fS4SjYS%2f%2fmc7uRryO4vOA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 20.184.175.17
- 52.123.252.236
- 48.211.4.16
- 4.230.171.124
- 20.247.184.197
- 135.232.92.137
- 74.179.77.164
- 20.42.65.93
- 20.236.44.162
- 52.123.128.14
- 52.123.129.14
- 52.168.117.169
- 203.26.79.13
- 135.233.95.80
- 172.215.188.232
- 172.178.240.162
- 52.182.143.212
- 52.110.12.15
- 52.148.114.188
- 52.110.12.51
- 72.145.35.111
- 52.110.12.28
- 52.110.12.22
Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report