Emotet Office (OLE) / .DOCX malware analysis — malicious · 2c8883cc6f3db8b4

MALICIOUS

Office (OLE) / .DOCX

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

MD5: 467e3301103d13b97156cf4f6184db84 SHA-1: 80eb080dbd4567aa4a468da56e23ac1aaa303c13 SHA-256: 2c8883cc6f3db8b4a0ef8a232338ed2435dfbe727d0a346170aab4a199d4d141

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file is identified as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9762290-0', strongly indicating the Emotet family. High-severity heuristics confirm the presence of VBA macros, specifically a 'Document_Open' macro that uses 'CreateObject' for execution. This suggests the macro is designed to download and execute a second-stage payload. The document body appears to be heavily obfuscated or corrupted, preventing a clear understanding of its lure, but the macro behavior is the primary indicator of malicious intent.

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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