Emotet Office (OLE) / .DOCX malware analysis — malicious · 2e2f91c3bb8be669

MALICIOUS

Office (OLE) / .DOCX

155.3 KB Created: 2020-12-30 13:16:00 Authoring application: Microsoft Office Word

MD5: 445014ed0af190a7cdfee823a9b483cd SHA-1: 65a684e28590481f6d5d663bc1cddc1b3763d5e9 SHA-256: 2e2f91c3bb8be66977133a7b69dabfa10bd895e9d05c5e5cb722e9b6212f4579

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic for Applications T1059.001 PowerShell T1204.002 Malicious File T1140 Deobfuscate or Obfuscate

The file contains VBA macros, specifically a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The presence of CreateObject calls and p-code execution further supports this. The ClamAV detection explicitly names this as a downloader associated with Emotet. The obfuscated document body text, while unreadable, likely serves as a lure to enable macros, which then execute the malicious VBA code to download a secondary payload.

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` `56a4885fb35696e61eb89c4193c6dbd09786b2db28cac633c3290a9c612d3393`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	6670 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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