Emotet Office (OLE) / .DOCX malware analysis — malicious · 31bd41fe0428d0c1

MALICIOUS

Office (OLE) / .DOCX

149.9 KB Created: 2020-09-28 14:26:00 Authoring application: Microsoft Office Word

MD5: 5c403913775f467d406597bab90fbccf SHA-1: 87b07774e09920d02dc3069f2b97cd42eb76b9e9 SHA-256: 31bd41fe0428d0c15f806a58e21c9f68ae8dc02b2823944caabe3a0cf3a0acca

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, which is a common technique for Emotet. The critical ClamAV detection of 'Doc.Malware.Emotet-9768663-0' strongly indicates Emotet family. The macro's auto-execution via CreateObject and p-code further supports this. The document body content is obfuscated and unreadable, but the presence of the macro and the ClamAV signature are sufficient to infer malicious intent, likely to download and execute a second-stage payload.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9768663-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9768663-0
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` `52573b116f951816e527b23fd5cfdfc578caca117ddeb459f950d0953f709442`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	6643 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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