MALICIOUS — virussign.com_425427b3035e13aecbf0f7cce27e13c0.vir

MALICIOUS — virussign.com_425427b3035e13aecbf0f7cce27e13c0.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (98/100), attributed to the Downware family. 5 of 53 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: 987412822ea966f2218a35b8efb6a685f436b2d702b6ebe525782d9ee03d94b1
• SHA-1: e54f3271df617fee231fbf8bb9b46c6248ab6bda
• MD5: 425427b3035e13aecbf0f7cce27e13c0
• imphash: 87bed5a7cba00c7e1f4015f1bdae2183
• ssdeep: 48:qfAqMrhWR69rDvrXkxLVYuX/2svystYVzwG4RApLeQN:FlrY6JrrXk3vbduVzwG4+T
• TLSH: T1BD176447E37838E4E746FB7960A3980DFEF528611127BC829D59DC71528C9A32001736
• Submitted as: virussign.com_425427b3035e13aecbf0f7cce27e13c0.vir
• File type: pe · Size: 3584 bytes
• Verdict: malicious (98/100) · Family: Downware

Source: VirusSign · first seen 2026-07-16T00:00:00.000Z · SHA-256 verified

Detections (5 of 53 engines)

• ClamAV (daily): Win.Adware.Downware-242
• Microsoft Defender: TrojanDownloader:Win32/Andromeda.SIB!MTB
• Emsisoft (Emergency Kit): Gen:Variant.Zusy.325289
• Kaspersky (KVRT): Worm.Win32.Debris.aq
• Trellix Stinger (McAfee): Trojan-FCPJ!425427B3035E

MITRE ATT&CK

• T1112

Why this verdict

The malicious score of 98/100 is the fusion of 6 weighted signals:

• ClamAV (daily) flagged Win.Adware.Downware-242 (rule Win.Adware.Downware-242) - engine signal, weight 0.90, confidence 0.95
• Memory forensics: 4 finding(s), e.g. RWX/private injected region in taskhostw.exe (pid 7220) (rule windows.malfind.Malfind) - memory signal, weight 0.60, confidence 0.85
• Microsoft Defender flagged TrojanDownloader:Win32/Andromeda.SIB!MTB (rule TrojanDownloader:Win32/Andromeda.SIB!MTB) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged Gen:Variant.Zusy.325289 (rule Gen:Variant.Zusy.325289) - engine signal, weight 0.55, confidence 0.85
• Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
• Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90

Dynamic analysis (windows)

49 behavior events · 1 ATT&CK techniques · 0 dropped files.

Runtime network

• searchapp.bundleassets.example
• www.msftconnecttest.com
• staging.to-do.officeppe.com
• teams.cloud.microsoft
• outlook.office.com
• outlook.office365.com
• outlook.cloud.microsoft
• www.bing.com
• desktop-hsgcbep
• config.edge.skype.com
• tas02.sls.update.microsoft.com
• to-do.microsoft.com
• settings-win.data.microsoft.com
• dns.msftncsi.com
• ctldl.windowsupdate.com
• staging.to-do.microsoft.com
• edge.microsoft.com
• teams.microsoft.com
• aps.prod.windows.com
• watson.events.data.microsoft.com

Embedded domains

• staging.to-do.officeppe.com
• teams.cloud.microsoft
• outlook.cloud.microsoft
• searchapp.bundleassets.example
• www.msftconnecttest.com
• outlook.office.com
• outlook.office365.com
• www.bing.com
• config.edge.skype.com
• tas02.sls.update.microsoft.com
• to-do.microsoft.com
• settings-win.data.microsoft.com
• dns.msftncsi.com
• ctldl.windowsupdate.com
• staging.to-do.microsoft.com
• edge.microsoft.com
• teams.microsoft.com
• aps.prod.windows.com
• watson.events.data.microsoft.com
• ecs.office.com
• g.live.com
• fs.microsoft.com
• self.events.data.microsoft.com
• www.msftncsi.com
• msedge.api.cdp.microsoft.com

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report