Office (OLE) / .DOC malware analysis — malicious · a610e249e3987103

MALICIOUS

Office (OLE) / .DOC

79.0 KB Created: 2025-04-01 07:05:00 Authoring application: Microsoft Office Word

MD5: 1498f1df4ca0e9cf23babe00cf34ed3d SHA-1: 2b53151e3777eec964ac68d389c6e87ce432b8e1 SHA-256: a610e249e3987103ebdb66ecf8198903afca93b1dcaf077fdecf80f371e9842d

208 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment

The file is a Microsoft Word document containing VBA macros, specifically a Document_Open macro, which is a common technique for executing malicious code automatically. The presence of CreateProcess API references and the ClamAV detection strongly indicate malicious intent. The extracted 'macros.bas' file is the primary artifact associated with the malicious behavior, likely responsible for downloading and executing a second-stage payload.

Heuristics 7

ClamAV: Doc.Malware.Macros-10058718-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Macros-10058718-0
Reference to CreateProcess API high SC_STR_CREATEPROCESS

Reference to CreateProcess API
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
Environ() call (env variable access) low OLE_VBA_ENVIRON

Environ() call (env variable access)
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `69e6f0a289c79c9ca1c94f51c932ee521faca7a83f910ca124742f96decac591`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18822 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

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