Emotet Office (OLE) / .DOCX malware analysis — malicious · 863c32fe0e6573be

MALICIOUS

Office (OLE) / .DOCX

255.0 KB Created: 2020-10-29 06:41:00 Authoring application: Microsoft Office Word

MD5: 5c747e0fa95ff35e00608eab05b22b50 SHA-1: 691ab0297f1be9ec9e75b65776c1808e2de3c5a0 SHA-256: 863c32fe0e6573bed3a0771579c821d9b162d93cc0226b7600af2c9b60b8e26c

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The critical ClamAV detection and high-severity heuristics for OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC indicate that this document contains a malicious VBA macro that executes automatically upon opening. The macro is designed to download and execute a second-stage payload, consistent with Emotet's behavior. The presence of a VBA macro and the specific ClamAV signature strongly suggest the Emotet family.

Heuristics 7

ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
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` `3a8074405c54d9e6984963caa3cafcf4e8c3b540e24ba2ba0a45964d8f0aaa49`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18973 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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