Emotet Office (OLE) / .DOC malware analysis — malicious · d4704ca87e4e6072

MALICIOUS

Office (OLE) / .DOC

112.7 KB Created: 2020-11-25 08:33:00 Authoring application: Microsoft Office Word

MD5: b40361fe26889021f4f934c9b68aaa0a SHA-1: 8e0a6fe27090e76ecac36cc7be25de7a551c029a SHA-256: d4704ca87e4e6072526a67adbf5e5a752172e947a4e6354d962455b4dce37994

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1027 Obfuscated Files or Information

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 macro activity. The presence of a Document_Open auto-exec macro that uses CreateObject is a common pattern for malware downloaders. The document body, though heavily obfuscated, contains text that appears to be a lure related to file corruption, further supporting a malicious intent. The Emotet family is explicitly mentioned in the ClamAV detection.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-10024800-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-10024800-0
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` `aee45768d2fff8dc643f1dc1a01d7b98bec63217192cfcaa87461cebea3dd5fc`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10344 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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