Emotet Office (OLE) / .DOCX malware analysis — malicious · 7b379e5dd60536e2

MALICIOUS

Office (OLE) / .DOCX

181.0 KB Created: 2020-10-21 10:22:00 Authoring application: Microsoft Office Word

MD5: 578585bde6177713082bdde9936312f8 SHA-1: d3acd133fde91db0fffe7749843220b264ba638f SHA-256: 7b379e5dd60536e28d876fd99a019dbf070807482a1aa9e2f29ce9957914c93e

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file is a malicious DOCX document containing VBA macros, specifically a Document_Open auto-exec macro. Heuristics indicate the use of CreateObject and p-code execution, consistent with Emotet's typical behavior of downloading and executing secondary payloads. The ClamAV signature also points to Emotet. No specific URLs or further script details were extracted, but the presence of the macros.bas file is a key indicator.

Heuristics 7

ClamAV: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0
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` `2d652a5f62c7cd7db265ab6f01298582724932c4485a1fde21ad075960ba4c72`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20722 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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