Emotet Office (OLE) / .DOCX malware analysis — malicious · 9cf5b02816bd5658

MALICIOUS

Office (OLE) / .DOCX

163.5 KB Created: 2020-10-20 12:48:00 Authoring application: Microsoft Office Word

MD5: 4dfbf4390ef89a582c76b0cb317aa4f2 SHA-1: 26268c154f510862d6d486b09a29382f7e0974c9 SHA-256: 9cf5b02816bd565827cdce9d51379ce60e8de2b2a83156c0ac9f6f2bb688fd38

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file contains VBA macros, specifically a Document_Open auto-execution macro, which is a common Emotet delivery technique. The ClamAV detection explicitly names Emotet and identifies the file as a downloader. The heuristics indicate the macro uses CreateObject and p-code execution, consistent with Emotet's behavior of downloading and executing a second-stage payload.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9780849-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9780849-0
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` `a791bb7ba5242dbbc595d3114d3368d96d9feda91ba232c650f7097f210ce92c`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	17778 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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