MALICIOUS — virussign.com_ac5358904dd5f0589d0ddc20e6be8e20.vir

MALICIOUS — virussign.com_ac5358904dd5f0589d0ddc20e6be8e20.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Somhoveran family. 6 of 56 detection engines flagged it, exhibiting 3 ATT&CK techniques.

Identification

SHA-256: 66931eecd65b47161eebdb8d3864b1d956b1d19b8ef344cfcd586095970877cb
SHA-1: f6abfdd376cf26190afb3b8d5ea7e9d98eb896c5
MD5: ac5358904dd5f0589d0ddc20e6be8e20
imphash: e60d0e6577962a1096407913ed128742
ssdeep: 3072:IyrN/sVywaEj1UsEOBYJwyrN/sVywaEj1Usl/UwX1L:Nh9wv1Ut3nh9wv1Ui9L
TLSH: T1563C02076552D4E8D6E3BE645C24C25DF8428F6849369D8068036FDF600EB6BA6E4FCC
Submitted as: virussign.com_ac5358904dd5f0589d0ddc20e6be8e20.vir
File type: pe · Size: 118272 bytes
Verdict: malicious (100/100) · Family: Somhoveran

Source: VirusSign · first seen 2026-08-25T00:00:00.000Z · SHA-256 verified

Detections (6 of 56 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.hmJfa4pdRVd
Kaspersky (KVRT): Worm.Win32.Wenper.b

MITRE ATT&CK

Why this verdict

The malicious score of 100/100 is the fusion of 12 weighted signals:

ClamAV (daily) flagged Win.Ransomware.Somhoveran-9870372-0 (rule Win.Ransomware.Somhoveran-9870372-0) - engine signal, weight 0.90, confidence 0.95
Microsoft Defender flagged Trojan:Win32/Vindor!pz (rule Trojan:Win32/Vindor!pz) - engine signal, weight 0.55, confidence 0.85
Emsisoft (Emergency Kit) flagged Gen:Trojan.ShellHook.hmJfa4pdRVd (rule Gen:Trojan.ShellHook.hmJfa4pdRVd) - engine signal, weight 0.55, confidence 0.85
Kaspersky (KVRT) flagged Worm.Win32.Wenper.b (rule Worm.Win32.Wenper.b) - engine signal, weight 0.55, confidence 0.85
Observed at runtime: Windows Service (T1543.003) (rule Windows Service) - dynamic signal, weight 0.40, confidence 0.90
1 behavioral detection(s) across 1 rule(s): Windows Service Installation [medium] (rule tl-service-install) - dynamic signal, weight 0.40, confidence 0.90
Contacted 3 HTTP request(s) at runtime - 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
MalwareAnalyser heuristics (entropy/packer) flagged UPX (rule UPX) - 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)

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

Dropped files

C:\Windows\System32\net.cpl - 1dabafb2b966ec8aa44700e955b77acfb3e0f3c573851b7fb9411a1b3abadf82
C:\Windows\System32\lcss.exe - 93720e36cc83d60a27de4b43d6d410f717a5df20821598d8eeebd2d89193b49b
C:\Windows\System32\crypto.dll - 0cf18373d0514d4638aac3fd1adae83645fb5dd0ca071b10735d01142b4eea2e
C:\Windows\System32\wlogon.dll - 663e3a7c11d66c0eb56eb7e0f0f77ec7d77eb2dc805977c1d55ea68ade01860e

Embedded URLs

http://www.msftconnecttest.com/connecttest.txt
http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
http://rb.symcb.com/rb.crl

Embedded IP addresses

20.42.73.25
52.253.84.76
48.211.4.16
4.230.171.124
20.165.94.54
4.150.223.103
74.179.77.204
172.64.154.167
135.233.45.222
172.66.2.5
52.110.12.50

More Somhoveran samples · Latest analyzed threats · ATT&CK coverage

Analyzed on MalwareAnalyzer by Cyble · Open interactive report