Office (OLE) / .DOCX malware analysis — malicious · 9512958c1e2d4c75

MALICIOUS

Office (OLE) / .DOCX

154.7 KB Created: 2020-12-30 18:32:00 Authoring application: Microsoft Office Word

MD5: ce36f8e87023ab2cf1124fb9ac1db4c6 SHA-1: cd9dab5fdcbafbacd154b0e01473e8283f2032a5 SHA-256: 9512958c1e2d4c75ccf1a1da8963bf39ecef83838203ec92036630265afedfa5

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample contains a Document_Open VBA macro that utilizes CreateObject, indicating it's designed to execute code automatically when the document is opened. The ClamAV detection and heuristic firings strongly suggest a downloader functionality, likely Emotet, which is known to use such techniques to fetch and execute further payloads. The embedded URL, though benign in reputation, is listed as an IOC due to its presence in the document.

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` `e8d3f7d8d02f0b30fe9a4f739a77064bdfd79f1fb249409f6cc7dd9e6c88bf62`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	6622 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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