Emotet Office (OLE) / .DOCX malware analysis — malicious · bdf8c73501dcf03a

MALICIOUS

Office (OLE) / .DOCX

159.0 KB Created: 2020-09-15 21:35:00 Authoring application: Microsoft Office Word

MD5: 5b59632a5208d5cdebccd0fd9b7dea97 SHA-1: 71d3d903c4af53f97b8f6abb1fb9e4f3cf79c9f6 SHA-256: bdf8c73501dcf03a946c8ed4e2e6510cc815f6b36f1a9d91639cfad9dd5102b0

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate malicious intent. The presence of a VBA macro file named 'macros.bas' further supports this. The ClamAV signature 'Doc.Malware.Emotet-9762290-0' suggests attribution to the Emotet family. The embedded document body content, though heavily truncated and obfuscated, appears to be part of a script attempting to construct commands related to Windows services and registry manipulation, consistent with Emotet's typical behavior of downloading and executing second-stage payloads.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9762290-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9762290-0
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` `48aeeefcb5ab39bdc7a9844f7217739e7dc8c9cb3f8a901965d3ff17ec851125`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	25311 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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