Office (OLE) / .DOC malware analysis — malicious · a2b21a5dc5909c1f

MALICIOUS

Office (OLE) / .DOC

166.0 KB Created: 2021-01-05 10:15:00 Authoring application: Microsoft Office Word

MD5: 9f514174ac19f97ad1b8dcfdae213243 SHA-1: 7543535a46bdce37918c7b09e8d0cabb3d27b30c SHA-256: a2b21a5dc5909c1faa499a89327ba0bc06ad57909ab27991354e4e435a1d71f6

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The critical ClamAV detection and high-severity heuristics for OLE_VBA_MACROS, OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate malicious VBA macro execution. The Document_Open macro is designed to run automatically, and the CreateObject call suggests the creation of objects to facilitate payload delivery. The embedded URL, though marked as benign, is often a placeholder or part of a larger obfuscation scheme in such documents. The presence of a VBA macro in a DOC file is a common delivery vector for malware.

Heuristics 7

ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
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` `8c4d881ce710c5bdc93f3892d458c04d696e3b291027b95b98b9ccba700a5f56`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10716 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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