Emotet Office (OLE) / .DOCX malware analysis — malicious · 1f9fcb8ad3585c6c

MALICIOUS

Office (OLE) / .DOCX

154.8 KB Created: 2020-10-16 19:32:00 Authoring application: Microsoft Office Word

MD5: f6dd4997cc21a60264593f48fca7c2bb SHA-1: 3976ae516245913700ae26a9e73043691f9a82f9 SHA-256: 1f9fcb8ad3585c6cbf7250308fc58ebd7fd913baf350cbd3d7fd8934c9e33e43

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file contains VBA macros, specifically a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The ClamAV detection explicitly names this as Emotet. The macro's execution of CreateObject suggests it's designed to perform actions like downloading additional malware. The document body content is heavily obfuscated and does not provide clear user-facing text, further supporting the idea that the primary function is malicious execution rather than content delivery.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9778628-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9778628-0
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` `d7b10db6ad3bff10dd176d31b83ada7ffa72a5d7b1b67bb513aee8ccfc4d5f3f`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15292 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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