Emotet Office (OLE) / .DOCX malware analysis — malicious · 4885a6fe3e6e3cf1

MALICIOUS

Office (OLE) / .DOCX

160.6 KB Created: 2020-10-16 18:44:00 Authoring application: Microsoft Office Word

MD5: e63d3e70d1ed87d01dda25e270f1a01e SHA-1: 94057af4d41828f44fbf0617381f907e4329b68f SHA-256: 4885a6fe3e6e3cf17f4b9c157b848115b2b51fc4b8e3e478650c6d8401062476

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file contains VBA macros, specifically a Document_Open macro that uses CreateObject to execute code. This is a common Emotet delivery technique. The ClamAV detection explicitly names Emotet, and the heuristic firings strongly support this classification. The document body content is heavily obfuscated and does not provide clear user-facing text, but the presence of the macro and the ClamAV signature are sufficient for attribution.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9778591-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9778591-0
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` `fcaa38ed96b1b218739bafc5403c2803ab83f37a0565afb297027068f0a0ee86`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15517 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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