Emotet Office (OLE) / .DOCX malware analysis — malicious · b59f341f63605a6e

MALICIOUS

Office (OLE) / .DOCX

216.0 KB Created: 2020-10-27 05:52:00 Authoring application: Microsoft Office Word

MD5: fbe0d22c20573c85cf7ce2f66aaf4e54 SHA-1: 6f243287ea8a301ed52d271d38670a2798c36b62 SHA-256: b59f341f63605a6e64ca3d40c60905a63c3817bdf781206c2f7d4eb0303bc860

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate a malicious document. The presence of a VBA macro, identified as 'macros.bas', and the ClamAV signature 'Doc.Downloader.Emotet-9784225-0' point towards the Emotet family. The Document_Open macro likely initiates the execution of code to download and run a secondary payload.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9784225-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9784225-0
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` `876efd50e919d9082c47104a676f266739e3ebd392e529f593b7ea04deb8a95e`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16361 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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