Emotet Office (OLE) / .DOC malware analysis — malicious · c5558b2a3bcfd432

MALICIOUS

Office (OLE) / .DOC

186.0 KB Created: 2020-09-16 22:59:00 Authoring application: Microsoft Office Word

MD5: 10c888ecfb1280cef0eafdaf959524e1 SHA-1: 6526f75704cf4e74edbdd40685f1767a0f1ecac0 SHA-256: c5558b2a3bcfd4327be67bfe8a141ce7c285c7ec50e5890eae22bbee8b40f491

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.Downloader.Emotet-9762305-0', indicating it is likely an Emotet downloader. High-severity heuristics confirm the presence of VBA macros, specifically a 'Document_Open' macro that uses 'CreateObject', suggesting it's designed to execute code automatically. The presence of VBA macros and the specific ClamAV detection strongly point to Emotet's typical delivery mechanism.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9762305-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9762305-0
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` `c74a4e0e1e8046236a4698925940d43110d502cff010754883e948c4e1efb894`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19088 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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