Office (OLE) / .DOCX malware analysis — malicious · f13e48098e4dc4a2

MALICIOUS

Office (OLE) / .DOCX

218.5 KB Created: 2020-10-28 16:03:00 Authoring application: Microsoft Office Word

MD5: 142829723514fe7f5c8fa10d4a2118ba SHA-1: 3da0feb416e80dcb0989cd45ef060e09d3cf166d SHA-256: f13e48098e4dc4a27534f29ee41bafc7943a5a1c14ad493e2a5e955e6c2c1148

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The file is a Microsoft Word document containing VBA macros, specifically a Document_Open macro that uses CreateObject. This indicates an automated execution of malicious code upon opening the document. ClamAV detection as 'Doc.Downloader.Generic' further supports this, suggesting the macro's purpose is to download additional malware. No specific family could be identified, but the behavior is consistent with a macro-based downloader.

Heuristics 7

ClamAV: Doc.Downloader.Generic-9785156-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9785156-0
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` `432b4517275395423e4145d722d6a456d77df175cda38550f4e26528858e8adb`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18870 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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