SUSPICIOUS — virussign.com_4f44be48366cf7f5dac22c3ac0d1c1b0.vir
SUSPICIOUS — virussign.com_4f44be48366cf7f5dac22c3ac0d1c1b0.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:
49c5eb3c6b80a8d037e4aa6ff6ef616e576d4e818929ab9014bb10de76690163 - SHA-1:
69f64b845a2317e299a56b2ac2bc97f1fea6be75 - MD5:
4f44be48366cf7f5dac22c3ac0d1c1b0 - imphash:
85002f598d4ee4c55a4d7997f8991a95 - ssdeep:
1536:ASMFkPlD//MTw9zsWPrngBY46mCQenpLQE6DOss9wJgkS:AEPlDMTwfjmCLQpCssGJgr - TLSH:
T13C3501367B805751E02B29B46363F6BD9643B29136668832931DCE3BB940F3F49091B1 - Submitted as: virussign.com_4f44be48366cf7f5dac22c3ac0d1c1b0.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): not-a-virus:HEUR:RiskTool.Win32.Generic
MITRE ATT&CK
Why this verdict
The suspicious score of 48/100 is the fusion of 3 weighted signals:
- Contacted 21 external host(s) at runtime (19 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)
108 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
- licensing.mp.microsoft.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\tsk_559d1fe1d80e446c.exe -
4ae6717bdec5ca14a4c59a66144910268d7dabbea045f5b7532ac93b9c2eb335 - a070a2d72b063b272ec77c56dd087dc8286d8ec267195bdefabe630231603c83 -
a070a2d72b063b272ec77c56dd087dc8286d8ec267195bdefabe630231603c83 - 6577bced8e6b4a8c1b39f877a6ec08a1f4773a79ef02fbed78b32e00db406897 -
6577bced8e6b4a8c1b39f877a6ec08a1f4773a79ef02fbed78b32e00db406897 - ff63427129bc0554134b8480458a2802b1960640d4ad625c992d8664ec1967bc -
ff63427129bc0554134b8480458a2802b1960640d4ad625c992d8664ec1967bc - 5655066ce5ae79c858fd84fb3261d62eec5edca5b6ba070bbccaf49dab7366ee -
5655066ce5ae79c858fd84fb3261d62eec5edca5b6ba070bbccaf49dab7366ee
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=1787782254&P2=404&P3=2&P4=ghIidELucNUWdBQGacgzXwY6kfA8mgl1OAda7wlDw0NO9PgzLbLT7jrOCmdvR7GRTLxVVQJLcLC1obhGpl26Fg%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=1787782334&P2=404&P3=2&P4=GdsyPlZlge4%2bu8OXxaZqpEgEccowRNst8QRU%2fmYBKRUiy7i%2bkWwbVZbRFw%2bstE6ewclbnbo1zbUychugjWMV0Q%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 20.42.73.30
- 20.247.184.197
- 4.230.171.124
- 4.247.188.233
- 135.233.95.144
- 4.150.223.111
- 74.178.240.51
- 74.178.76.128
- 135.232.92.137
- 52.123.128.14
- 20.236.44.162
- 135.234.160.246
- 203.26.79.13
- 52.110.12.26
- 52.110.12.3
- 52.148.114.188
- 74.178.232.29
- 57.154.63.210
- 72.153.5.136
- 52.110.12.4
- 52.110.12.56
Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report