MALICIOUS — virussign.com_dae4a4c736cd7a0e65101b7079b4aa80.vir

MALICIOUS — virussign.com_dae4a4c736cd7a0e65101b7079b4aa80.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (72/100), attributed to the STRATO family. 7 of 51 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: c4b779c2bc43fa427750797fa27ccd945b80405704c2f1029e23b1a818646b47
• SHA-1: 97c03696a6e994c66803aeb1a71a1c621df2bedb
• MD5: dae4a4c736cd7a0e65101b7079b4aa80
• imphash: ac2cdf43b12898532dd13d6d88f9a7ce
• ssdeep: 49152:8daEMleXslKuN3k2CZkbW4QEe+x0626rUjUvZ1+0lTAfUMDWGWKLAjVgbKW2llx/:v9q4Q1HomLtDWbhMw3D7nTsReRR9r
• TLSH: T151695CE94A3BA221F177ED147C2879DC80A2B09CA57AD68D5B038C6E40D3637EDF1056
• Submitted as: virussign.com_dae4a4c736cd7a0e65101b7079b4aa80.vir
• File type: pe · Size: 8293181 bytes
• Verdict: malicious (72/100) · Family: STRATO

Source: VirusSign · first seen 2026-08-02T00:00:00.000Z · SHA-256 verified

Detections (7 of 51 engines)

• capa (capabilities): capability:collection/keylog
• YARA: Stratosphere IPS: STRATO_Malicious_UserAgent
• YARA: Yara-Rules community: YR_AntiDebug_Checks
• Microsoft Defender: Ransom:Win64/Azov.psyA!MTB
• Emsisoft (Emergency Kit): Trojan.Ransom.Azov.1
• Trellix Stinger (McAfee): Trojan-FXIH!DAE4A4C736CD
• Kaspersky (KVRT): HEUR:Trojan.Win32.Generic

MITRE ATT&CK

• T1071.001
• T1056.001

Why this verdict

The malicious score of 72/100 is the fusion of 5 weighted signals:

• capture keystrokes (rule capture keystrokes) - capa signal, weight 0.40, confidence 0.80
• YARA: Stratosphere IPS flagged STRATO_Malicious_UserAgent (rule STRATO_Malicious_UserAgent) - engine signal, weight 0.35, confidence 0.70
• YARA: Yara-Rules community flagged YR_AntiDebug_Checks (rule YR_AntiDebug_Checks) - engine signal, weight 0.35, confidence 0.70
• Embedded network infrastructure: https://api-content.dropbox.com/1/files/auto, https://api-content.dropbox.com/1/files_put/auto, https://api.dropbox.com/1/metadata/auto - static signal, weight 0.35, confidence 0.60
• communicate over HTTP (rule communicate over HTTP) - capa signal, weight 0.30, confidence 0.60

Dynamic analysis

No runtime behaviour was captured for this sample, so the analysis above is static only. That is a limit of this run rather than evidence the sample does nothing.

Embedded URLs

• http://schemas.microsoft.com/sharepoint/soap/
• http://schemas.microsoft.com/sharepoint/soap/GetVersions
• http://schemas.microsoft.com/sharepoint/soap/RestoreVersion
• http://schemas.microsoft.com/sharepoint/soap/DeleteVersion
• http://schemas.microsoft.com/sharepoint/soap/DeleteAllVersions
• http://www.microsoft.com/pki/certs/MicrosoftTimeStampPCA.crt0
• http://www.microsoft.com/pki/certs/MicCodSigPCA_08-31-2010.crt0
• http://crl.microsoft.com/pki/crl/products/microsoftrootcert.crl0T
• http://office.microsoft.com
• http://schemas.microsoft.com/office/shared/2006/coauthoring
• http://schemas.microsoft.com/office/shared/2010/coauthoring/custom
• http://schemas.microsoft.com/repl/
• http://schemas.microsoft.com/clouddocuments
• http://apache.org/dav/props/
• https://api-content.dropbox.com/1/files/auto
• https://api-content.dropbox.com/1/files_put/auto
• https://api.dropbox.com/1/metadata/auto
• https://docs.live.net/skydocsservice.svc
• https://docs.live-tst.net/skydocsservice.svc
• http://www.w3.org/2000/09/xmldsig#
• http://xml.org/sax/properties/lexical-handler
• http://xml.org/sax/features/namespaces
• http://xml.org/sax/features/external-general-entities
• http://xml.org/sax/features/external-parameter-entities
• http://xml.org/sax/features/lexical-handler/parameter-entities

Embedded domains

• schemas.microsoft.com
• crl.microsoft.com
• www.microsoft.com
• office.microsoft.com
• dropbox.com
• sharepoint.com
• spoppe.com
• example.com
• my.sharepoint.com
• my.spoppe.com
• apache.org
• api-content.dropbox.com
• api.dropbox.com
• ssl.live-int.com
• ssl.live.com
• microsoftonline.com
• live.com
• docs.live.net
• docs.live-tst.net
• live.net
• live.org
• ccsctp.com
• www.w3.org
• corp.microsoft.com
• xml.org

File paths

• P:\Target\x64\ship\csi\x-none\cmigrate.pdb

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report