Emotet Office (OLE) / .DOC malware analysis — malicious · 42bb0e1d393f88b0

MALICIOUS

Office (OLE) / .DOC

128.7 KB Created: 2020-10-14 07:17:00 Authoring application: Microsoft Office Word

MD5: 69291a3e4048fb85d232c4f2e8ec03b4 SHA-1: c232f705b8327e3329782bd0115ded177ea5cee5 SHA-256: 42bb0e1d393f88b04e4aac95ad904b01741b0632990da41cc710c424a681cb39

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 a malicious dropper. The presence of a VBA macro file named 'macros.bas' further supports this. The ClamAV signature 'Doc.Dropper.Emotet-9777979-0' directly attributes this sample to the Emotet family, which is known for its macro-based delivery of further malware.

Heuristics 7

ClamAV: Doc.Dropper.Emotet-9777979-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Dropper.Emotet-9777979-0
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` `965146e7315f1a4ecc1a5d2fad03014e17bc883ca167a6078bfa90d897ebefad`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	9248 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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