Emotet Office (OLE) / .DOCX malware analysis — malicious · c0173734b69eb546

MALICIOUS

Office (OLE) / .DOCX

168.3 KB Created: 2020-10-20 06:24:00 Authoring application: Microsoft Office Word

MD5: e76b77d51db6e369c7c4d99cf3623f22 SHA-1: 9237911eb765cefee3ba012c75e2e2a4e83113a6 SHA-256: c0173734b69eb546ccd8a38fa92a431e6a8d5c3019c2bc142327a005cf78fc09

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate malicious intent. The presence of a VBA macro named 'macros.bas' further supports this. The primary function appears to be downloading and executing a secondary payload, consistent with Emotet's typical behavior. The embedded URL, though benign, was likely a placeholder or part of the document's lure.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9780995-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9780995-0
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` `9c144e4934aa06f4a846d3460cf32982827c1cabf227410ae75b7d2e86969ea7`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	17539 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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