SUSPICIOUS — virussign.com_de7db67b0647dfd61c4effcb1a49b1d0.vir
SUSPICIOUS — virussign.com_de7db67b0647dfd61c4effcb1a49b1d0.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:
0b1ebd5b03f656fb2a6144f6fc3b8f2f1ad9f7bfcdfc5247e55d31e03b6710c9 - SHA-1:
0aa92b4cf4a2c2d2465a9a19db5707540a1b7721 - MD5:
de7db67b0647dfd61c4effcb1a49b1d0 - imphash:
09bcc52dc9eee085801b07c662f6dc83 - ssdeep:
1536:f81SUvvpMu66JUDFNV+0iSfM/hydFzNEzQBLqD:fmjvd6XFN00iSXXEzQID - TLSH:
T1CE35022717373019C5A6181B9731D37C84C6BE2571F27EB824B0FD147B052379A2E94A - Submitted as: virussign.com_de7db67b0647dfd61c4effcb1a49b1d0.vir
- File type: pe · Size: 60416 bytes
- Verdict: suspicious (48/100)
Source: VirusSign · first seen 2026-08-18T00:00:00.000Z · SHA-256 verified
Detections (4 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): UPX
- Microsoft Defender: Trojan:Win32/Copak.GPI!MTB
- Emsisoft (Emergency Kit): Gen:Variant.Zusy.362564
- Kaspersky (KVRT): HEUR:Trojan.Win32.Copak.pef
MITRE ATT&CK
Why this verdict
The suspicious score of 48/100 is the fusion of 3 weighted signals:
- Contacted 24 external host(s) at runtime (22 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)
109 behavior events · 0 ATT&CK techniques · 5 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
- officeclient.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\tsk_c52bef8ebd8a466d.exe -
a4ccd972017bf554a4023204d5e79a15a0284ac27d2d6959215b198bab43f76e - 8656a1033b64e4b30034d83e62763f382fbfb4a82c4b7575d8c128b8e2e6c94d -
8656a1033b64e4b30034d83e62763f382fbfb4a82c4b7575d8c128b8e2e6c94d - 2ab8b1e377fd58985744db1f218bc16383995c11fca886274247d9efb6a8385e -
2ab8b1e377fd58985744db1f218bc16383995c11fca886274247d9efb6a8385e - e87fbd392820a8f6294d5abe87613e92152401ac9a30932470f9649f8ecabe68 -
e87fbd392820a8f6294d5abe87613e92152401ac9a30932470f9649f8ecabe68 - edb2936f39384c1f25ff95a6a9178cc50053ef6a43a0bb28d3abed3e691eaca8 -
edb2936f39384c1f25ff95a6a9178cc50053ef6a43a0bb28d3abed3e691eaca8
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=1787727417&P2=404&P3=2&P4=nVc%2b1Wo0VZKxQiZidIOhDDs1672PdP9B6G6HE%2bOrxf0qVp%2fsfs2a3%2bYzSLaLUgy%2b5fJtWP1kZap4RaZ2XKoy3g%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=1787727466&P2=404&P3=2&P4=WajfKKNSlhsg0sfZreR8NoaA%2fl4NqFSC%2f952g9jBLgewP2FJ7OFA3nOXRc4pPm5QlHCqx642tOJmpwqAnTOS%2fw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 203.26.79.13
- 92.223.78.30
- 4.207.44.67
- 57.154.63.210
- 4.230.171.124
- 4.144.132.114
- 135.232.92.137
- 74.178.240.51
- 20.184.175.10
- 20.236.44.162
- 52.123.128.14
- 52.123.129.14
- 20.184.175.22
- 20.42.73.30
- 74.178.232.29
- 172.178.240.161
- 52.148.114.188
- 52.123.252.229
- 52.123.252.215
- 172.215.188.225
- 135.233.95.80
- 72.153.5.131
- 52.110.12.26
- 52.110.12.1
Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report