MALICIOUS — virussign.com_5fa3b4720242dd7bba9e8f905f5f43f0.vir

MALICIOUS — virussign.com_5fa3b4720242dd7bba9e8f905f5f43f0.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (98/100), attributed to the Somhoveran family. 6 of 55 detection engines flagged it, exhibiting 3 ATT&CK techniques.

Identification

SHA-256: 458df9cacdcb69ea3393462c67ec6965ffe010e4825b094836ab4864f1a8c26f
SHA-1: f05b7c7e6472839ce26cc59ec06a59db85c7a64c
MD5: 5fa3b4720242dd7bba9e8f905f5f43f0
imphash: e60d0e6577962a1096407913ed128742
ssdeep: 6144:Nh9wv1Uveh9wv1UtospSgGLa09M9ijt/coA9:Nh9wt4eh9wt0oHLhNzA9
TLSH: T1EA431206464394B8C2D77AB4ADD0F35EB8808B2C02755DD03A852EEE915DB2BFC583D5
Submitted as: virussign.com_5fa3b4720242dd7bba9e8f905f5f43f0.vir
File type: pe · Size: 226304 bytes
Verdict: malicious (98/100) · Family: Somhoveran

Source: VirusSign · first seen 2026-08-20T00:00:00.000Z · SHA-256 verified

Detections (6 of 55 engines)

MalwareAnalyser heuristics (entropy/packer): UPX
ClamAV (daily): Win.Ransomware.Somhoveran-9870372-0
Detect It Easy (packer/type): DIE:Turbo Linker
Microsoft Defender: Trojan:Win32/Vindor!pz
Emsisoft (Emergency Kit): Gen:Trojan.ShellHook.nmJfa4pdRVd
Kaspersky (KVRT): Worm.Win32.Wenper.b

MITRE ATT&CK

Why this verdict

The malicious score of 98/100 is the fusion of 8 weighted signals:

ClamAV (daily) flagged Win.Ransomware.Somhoveran-9870372-0 (rule Win.Ransomware.Somhoveran-9870372-0) - engine signal, weight 0.90, confidence 0.95
Observed at runtime: Windows Service (T1543.003) (rule Windows Service) - dynamic signal, weight 0.40, confidence 0.90
1 behavioral detection(s): Windows Service Installation [medium] (rule tl-service-install) - dynamic signal, weight 0.40, confidence 0.90
Contacted 19 external host(s) at runtime (16 HTTP) - network signal, weight 0.40, confidence 0.80
Detect It Easy (packer/type) flagged DIE:Turbo Linker (rule DIE:Turbo Linker) - engine signal, weight 0.35, confidence 0.70
Packing/obfuscation: UPX, high-entropy-sections:UPX1, Turbo Linker - static signal, weight 0.25, confidence 0.55
Dropped 3 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90

Dynamic analysis (windows)

315 behavior events · 2 ATT&CK techniques · 4 dropped files.

Dropped files

C:\Windows\System32\net.cpl - f2168254aa6d9c3839379e3306d57af142508b59ebc0274c5cd83863d4ad012a
C:\Windows\System32\crypto.dll - 65467d68c38f1bf479a26afdb54eaa3a21def0b2335e50ecb058bdac1f24b8c5
C:\Windows\System32\wlogon.dll - 112d12f87d3b0f36104b51f135d219afd42e8dd7ad7576394221d5e5e048ce61
C:\Windows\System32\lcss.exe - 05d89ecbf5db942efaf803bbe6db45266205b1c6d3de49cafecb730d86fad885

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=1787850073&P2=404&P3=2&P4=ZeTXBt%2fZsx%2f5abPFV1qrvB9IDITeGMPBW1SImNf%2fcbNdPGaXGaGR7kk3cUfeB8Zv4BWAnuHFCae8UKv%2fSHtpGQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com

Embedded IP addresses

4.207.44.77
52.253.84.76
48.211.4.16
4.230.171.124
74.179.77.204
135.232.92.97
20.184.175.7
51.104.15.252
20.231.239.246
52.123.129.14
52.123.128.14
92.223.78.30
203.26.79.13
135.234.160.246
20.165.94.46
72.154.7.113
52.148.114.188
52.110.12.47
52.110.12.45

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report