Emotet Office (OLE) / .DOCX malware analysis — malicious · f8681df2fdf20a60

MALICIOUS

Office (OLE) / .DOCX

151.8 KB Created: 2020-10-01 07:06:00 Authoring application: Microsoft Office Word

MD5: 0a44f3e86f3942934369fb432ea2f1d2 SHA-1: 59d988d741d57b8e84c358337746627fe7e7ee14 SHA-256: f8681df2fdf20a60cfbc6bc9da657e2354f6ad0657d8ee087cf2fe50dfa09a21

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

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 obfuscated VBA code within the macros.bas artifact suggests a downloader or droppper functionality, typical of Emotet. The document body's content is heavily obfuscated and unreadable, providing no direct clues to the lure, but the technical indicators are sufficient for attribution.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9770156-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9770156-0
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` `edcbc228f949e002f32423fcc2aae89e10357cf04ecc19d5df06e1df6cb28a25`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10406 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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