Emotet Office (OLE) / .DOCX malware analysis — malicious · f3f544d1ebc8663d

MALICIOUS

Office (OLE) / .DOCX

173.0 KB Created: 2020-10-27 21:28:00 Authoring application: Microsoft Office Word

MD5: 61176897d6f551645f43ad434e292c9d SHA-1: 846a24af0a8ab24b529a292d69e172ae1ffd2ab3 SHA-256: f3f544d1ebc8663d6d4d375f2fd7e749d0b34bfb3aeca33e3ce7c598f5748f3a

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 and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate malicious intent. The presence of a VBA macro designed to execute automatically upon opening the document suggests it is a downloader for a second-stage payload, consistent with Emotet family behavior. The document body content appears to be obfuscated or corrupted, providing no direct clues to the lure.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9784450-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9784450-1
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` `8e0ab8816d43bd5ad9c1c0011689607d8d62edfed4931a09dce2c4955c56dadb`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16529 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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