Emotet Office (OLE) / .DOC malware analysis — malicious · cdf06def01057729

MALICIOUS

Office (OLE) / .DOC

199.0 KB Created: 2020-10-21 13:40:00 Authoring application: Microsoft Office Word

MD5: 8fcaa5810c93db95c31cf364152b9727 SHA-1: 9ecbe6910ba9258114d081aa658b82b56668e291 SHA-256: cdf06def0105772940712dfa0a3b807a05980b23312dd17d1ebfcbb69c76cc4b

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The critical ClamAV detection and high-severity heuristics for OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate malicious VBA macro execution. The Document_Open macro is designed to run automatically upon opening the document, likely to download and execute a second-stage payload. The ClamAV signature 'Doc.Dropper.EmotetiBlueUpdate1020-9780531-0' further supports the Emotet family attribution.

Heuristics 7

ClamAV: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0
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` `95eb3c5d035a5c49033717199bc50764986e3b5ab99bba0bc56e259ec5a3061f`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	23248 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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