Emotet Office (OLE) / .DOC malware analysis — malicious · cbc98038cc0dab8d

MALICIOUS

Office (OLE) / .DOC

175.8 KB Created: 2020-10-20 15:27:00 Authoring application: Microsoft Office Word

MD5: 94222800892d6091727af355ad24ffc3 SHA-1: 493459f2b3f9f7795fbe87552f8fe056d9034563 SHA-256: cbc98038cc0dab8d10dbfa4950f8228777c05eee346ce80ab1f2002c51939ac1

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV with the signature Doc.Malware.Emotet-9781039-0. Static analysis revealed a Document_Open VBA macro that uses CreateObject, indicating it's designed to execute code upon opening. This macro likely serves to download and execute a second-stage payload, a common Emotet delivery technique. The presence of a VBA macro and the specific ClamAV signature strongly suggest the Emotet family.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9781039-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9781039-0
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` `4ae9206e4b66c21807f47ed3b7c5982ab29db0a36a53a5da071ac077a7c0588d`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18780 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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