MALICIOUS — virussign.com_436271535f272acd7391058fbcb2ebc0.vir
MALICIOUS — virussign.com_436271535f272acd7391058fbcb2ebc0.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Ulise family. 4 of 56 detection engines flagged it, exhibiting 4 ATT&CK techniques.
Identification
- SHA-256:
8479a78242321298a70cd2584263590342288de32d57842a8ff00c1f01e3b580 - SHA-1:
2aaf7969a7f5073ae043711de8e33915baf9a7f5 - MD5:
436271535f272acd7391058fbcb2ebc0 - imphash:
118eb37b88640d7f3f7ac979ea5687cc - ssdeep:
384:KrxUg5er0jeDnCny4OyzLeReRrnnIg3625qqpCMEjcloBYeu9g7Pg:erGCnTiWg25qqpujgutzPg - TLSH:
T1D830D299C724929ED297701231C3998EF2662BAEB514E17B49C58B348EF4533BC30E49 - Submitted as: virussign.com_436271535f272acd7391058fbcb2ebc0.vir
- File type: pe · Size: 36864 bytes
- Verdict: malicious (100/100) · Family: Ulise
Source: VirusSign · first seen 2026-08-25T00:00:00.000Z · SHA-256 verified
Detections (4 of 56 engines)
- YARA: MalwareAnalyser built-in: Windows_Injection_Api_Combo
- ClamAV (daily): Win.Trojan.Ulise-6838227-0
- Microsoft Defender: Trojan:Win32/Injector.ARA!MTB
- Kaspersky (KVRT): HEUR:Trojan.Win32.Miancha.gen
MITRE ATT&CK
YARA
- Windows_Injection_Api_Combo
Why this verdict
The malicious score of 100/100 is the fusion of 10 weighted signals:
- ClamAV (daily) flagged Win.Trojan.Ulise-6838227-0 (rule
Win.Trojan.Ulise-6838227-0) - engine signal, weight 0.90, confidence 0.95 - Process injection API combination (rule
Windows_Injection_Api_Combo) - yara signal, weight 0.65, confidence 0.90 - Microsoft Defender flagged Trojan:Win32/Injector.ARA!MTB (rule
Trojan:Win32/Injector.ARA!MTB) - engine signal, weight 0.55, confidence 0.85 - Kaspersky (KVRT) flagged HEUR:Trojan.Win32.Miancha.gen (rule
HEUR:Trojan.Win32.Miancha.gen) - 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
- YARA: MalwareAnalyser built-in flagged Windows_Injection_Api_Combo (rule
Windows_Injection_Api_Combo) - engine signal, weight 0.35, confidence 0.70 - persist via registry run key (rule
persist via registry run key) - capa signal, weight 0.35, confidence 0.60 - Dropped 1 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
Dynamic analysis (windows)
131 behavior events · 1 ATT&CK techniques · 1 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- update.googleapis.com
- login.live.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- licensing.mp.microsoft.com
- config.edge.skype.com
- windows.msn.com
- officeclient.microsoft.com
- www.msn.com
- odc.officeapps.live.com
- www.bing.com
- assets.msn.com
- th.bing.com
- fe3cr.delivery.mp.microsoft.com
- settings-win.data.microsoft.com
- v10.events.data.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\tsk_ec1f1a63f923471a.exe -
6cf4154db49014dbd7fd5ba562222025ea72d0e6cda9310ffef5a10de82179bc
Embedded URLs
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
Embedded IP addresses
- 4.150.223.105
- 52.230.59.222
- 4.230.171.124
- 20.165.94.54
- 20.184.175.4
- 135.232.92.137
- 85.210.196.11
- 172.64.154.167
- 20.184.175.1
- 52.110.12.18
- 52.110.12.15
Registry keys
- HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
File paths
- c:\temp\2015-05-01_22-53-25.dmp
More Ulise samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report