Emotet Office (OLE) / .DOCX malware analysis — malicious · a7f50bf321bf73c7

MALICIOUS

Office (OLE) / .DOCX

198.7 KB Created: 2020-09-16 07:09:00 Authoring application: Microsoft Office Word

MD5: 5d5c23d354bf8c8f05265d88302aa9b7 SHA-1: 4de0b13896634c7b90d948589a8ec2bea54b8db8 SHA-256: a7f50bf321bf73c7af879ec128a67f16868adbb11239f8c21520fb3ba193eff8

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The sample contains VBA macros, specifically a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The ClamAV detection explicitly names this as Emotet. The presence of the 'macros.bas' file and the 'CreateObject' call within the VBA code suggest the macro is designed to download and execute a second-stage payload. The document body is heavily corrupted and unreadable, providing no further context.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9762400-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9762400-0
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` `7c58c4b09e28ace19eb6117ae115fc2b8ebe509e6804a2a36cc1706dcd36fda5`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	25351 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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