Emotet Office (OLE) / .DOCX malware analysis — malicious · 533326fb845b2efa

MALICIOUS

Office (OLE) / .DOCX

161.3 KB Created: 2020-12-30 10:10:00 Authoring application: Microsoft Office Word

MD5: 5700bcf63972f5691e4ba645b87818c1 SHA-1: 14b7b7e4739d661ba3593f0c844ca129bf2dda6a SHA-256: 533326fb845b2efa414f644f112d1eb49d38fe6d2dc38d4178aca7d1c0f9e2bc

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The critical ClamAV heuristic and high-severity VBA heuristics indicate a malicious downloader. Specifically, the presence of a Document_Open macro that uses CreateObject and p-code auto-execution strongly suggests the execution of malicious VBA code. This code is designed to download and execute a second-stage payload, a common tactic for Emotet. The embedded URL, though benign in reputation, is part of the document's structure and was flagged.

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` `663869ec393d0a50f151da4884835577fc196722b5e56686c64f3948abebb4bb`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	6571 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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