Emotet Office (OLE) / .DOCX malware analysis — malicious · 40221abe56008024

MALICIOUS

Office (OLE) / .DOCX

162.9 KB Created: 2020-10-01 15:57:00 Authoring application: Microsoft Office Word

MD5: 5b362422e5de99aa5b0b7c174e6a8592 SHA-1: 2f25fde37f69e74c8fad1d8ec3b9a74b79d8bfdf SHA-256: 40221abe560080243497513ad209ccc44547a051839b9fbf63f90d06e60d01c1

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The file contains VBA macros, specifically a Document_Open macro that uses CreateObject, indicating malicious intent. The ClamAV detection explicitly names this as Emotet. The presence of obfuscated VBA code and the auto-execution of a macro strongly suggest the document is designed to download and execute a secondary payload, a common Emotet tactic. The document body content appears to be heavily obfuscated or corrupted, providing no clear user-facing lure.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9770197-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9770197-0
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` `34626713db5720b3147c8823fb8dfd0fe34a12fce4df5a0aa65f24e3eab9d078`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10368 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 53 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.

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