Office (OLE) / .DOCX malware analysis — malicious · 329518d24afcd99e

MALICIOUS

Office (OLE) / .DOCX

192.1 KB Created: 2020-09-18 12:16:00 Authoring application: Microsoft Office Word

MD5: 16d76a0dc6dd742c563c0876c3218b70 SHA-1: d57c080135a356aa4db6281a3825e7f49b559e59 SHA-256: 329518d24afcd99e1be7e1477959386d2d882707c5056693cb7b7aaae8b3d75a

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The file is a Microsoft Office document containing a malicious VBA macro. The 'Document_Open' macro is configured to execute automatically, and heuristics indicate the use of 'CreateObject' for potentially downloading and executing further stages. The ClamAV detection as 'Doc.Downloader.Generic' further supports this. No specific family could be identified, but the behavior is consistent with a macro-based downloader.

Heuristics 7

ClamAV: Doc.Downloader.Generic-9763532-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9763532-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC

Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
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
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` `ba8241e4388725ade491e6e42da3e5f9cf169555b4f6e61ff9f624691af3445f`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20213 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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