Emotet Office (OLE) / .DOCX malware analysis — malicious · c8ee659a07910431

MALICIOUS

Office (OLE) / .DOCX

155.2 KB Created: 2020-10-16 06:31:00 Authoring application: Microsoft Office Word

MD5: 92fecc6827d51b55879d8e19e1c3b15c SHA-1: b6d6be8fb0d1558487caa73554bf4d7e872b906c SHA-256: c8ee659a07910431f796fdd1131e3235a5f8f4502e13a9832fdc98b4796e4556

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The critical ClamAV detection explicitly names Emotet, a well-known downloader family. High-severity heuristics confirm the presence of VBA macros, specifically a Document_Open auto-execution macro that uses CreateObject, indicating the execution of code upon opening the document. This macro is designed to download and execute a secondary payload, a common Emotet delivery technique. The document body content is heavily obfuscated and does not provide direct clues to the user-facing lure.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9778460-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9778460-0
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` `d61a5c08d74b05c0be099936f48870810cfcd0fa95621c486c59e0d00fa9de51`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15430 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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