Emotet Office (OLE) / .DOC malware analysis — malicious · 41a90a26cc6f6af2

MALICIOUS

Office (OLE) / .DOC

185.1 KB Created: 2020-10-16 06:16:00 Authoring application: Microsoft Office Word

MD5: 1159113862ba6509fc9dbf11f7a52e7d SHA-1: 406329a7e1d968ced108cb5a89aff6bc17bac734 SHA-256: 41a90a26cc6f6af24c09f5b929d3342f096486d2093110fe3c8ad34de9560602

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 OLE_VBA_MACROS, OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate malicious VBA macro execution. The presence of a Document_Open macro suggests automatic execution upon opening the document. The ClamAV signature specifically names Emotet, a known banking trojan and downloader. The document body content is heavily obfuscated and unreadable, providing no direct clues to the lure.

Heuristics 7

ClamAV: Doc.Trojan.Emotet-9778443-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Emotet-9778443-1
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` `3aa4602d13895bbb19666b18a56108bc3ac6b1953483bc168bcdaa103153ce44`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15426 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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