Emotet Office (OLE) / .DOCX malware analysis — malicious · 483c7b45c130996e

MALICIOUS

Office (OLE) / .DOCX

131.6 KB Created: 2020-09-28 15:20:00 Authoring application: Microsoft Office Word

MD5: cfb79ac352555cec685abbb373ac85b8 SHA-1: f05437044b34776806b5ada73365da8703fbe7c0 SHA-256: 483c7b45c130996e34617c22a73205705941e6cb623396fb5c292b31bdbbb387

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

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 code designed to execute automatically. The presence of a 'macros.bas' file further supports this. The ClamAV signature 'Doc.Malware.Emotet-9768661-0' directly attributes this to the Emotet family. The document body content is heavily obfuscated and unreadable, providing no direct clues to the lure, but the macro execution is the primary threat.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9768661-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9768661-0
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` `2ce77a90790088f293710a707301ae69bfebe17386d7804fba58a5e382e47c64`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	6657 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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