Emotet Office (OLE) / .DOCX malware analysis — malicious · a6c0c0fb1ee9b17a

MALICIOUS

Office (OLE) / .DOCX

163.3 KB Created: 2020-10-16 14:09:00 Authoring application: Microsoft Office Word

MD5: db61b4a248e79756f9f420c324d25b32 SHA-1: 21700cc5f5555f913ab6ce781e61715840c6f18a SHA-256: a6c0c0fb1ee9b17a84de711e159b1334026597a8484768ca42e1a0955b445b60

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file contains a VBA macro that is automatically executed upon opening the document, as indicated by the 'Document_Open' macro and 'CreateObject' call heuristics. This macro is flagged as suspicious and is associated with the Emotet family by ClamAV. The primary function of the macro appears to be downloading and executing a second-stage payload. The document body content is heavily obfuscated and does not provide direct clues to the user-facing lure.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9778566-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9778566-0
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` `29095f417e940309e4c3b74017a13ff70f85d23507d6b5296a03fa98c635a78b`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15315 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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