Office (OLE) / .DOCX malware analysis — malicious · f54166916a8e40e0

MALICIOUS

Office (OLE) / .DOCX

240.7 KB Created: 2020-10-29 04:25:00 Authoring application: Microsoft Office Word

MD5: cc6b083d73d249f2b36bb6a3b8d190bc SHA-1: 34b488c5d43b820dba2d7b64df4e3aed8a7aa517 SHA-256: f54166916a8e40e0d024df928029c9f35e013fb4b7a39eeb0554e8dc2820dc9c

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The critical ClamAV detection and high-severity heuristics indicate this is a malicious document. Specifically, the presence of a Document_Open macro that uses CreateObject and VBA p-code auto-execution strongly suggests it's designed to download and execute a secondary payload. The embedded URL, though benign according to reputation, is listed as an IOC due to its presence in the document text.

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` `6946a447d4e81b55f46842d89fcb86ebdb7dd8c4ce560afbdde9533734f99d67`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18622 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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