Emotet Office (OLE) / .DOC malware analysis — malicious · c3b36ea5d6e99673

MALICIOUS

Office (OLE) / .DOC

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

MD5: d2723ab5c823ad69452c3c202adf7eab SHA-1: 6c7006c610bb8f954c91cd1d0e9da40070c03020 SHA-256: c3b36ea5d6e996730ffaaf38cf2fdb2ddb2e49586c7e04baa54ff4daf32561ab

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file contains a malicious VBA macro, specifically a Document_Open auto-exec macro, which is a strong indicator of Emotet. The macro utilizes CreateObject to execute code, likely to download and run a second-stage payload. ClamAV detection further confirms its malicious nature as Emotet. The embedded URL was confirmed benign and thus not included as an IOC.

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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