Emotet Office (OLE) / .DOCX malware analysis — malicious · f937a97bd6491ef9

MALICIOUS

Office (OLE) / .DOCX

139.0 KB Created: 2020-10-15 20:30:00 Authoring application: Microsoft Office Word

MD5: 67a4403c4309cf2a4153fe4ae336dfd0 SHA-1: ab83e0c59f71ddf89efc91b1b0dacbf34bcd0fb7 SHA-256: f937a97bd6491ef93fb7aaf9ba74ab45293543764c0c47415bc01da8b23e9a70

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample contains VBA macros, specifically a Document_Open macro that utilizes CreateObject. This is a common technique for Emotet to download and execute further malicious content. The ClamAV detection explicitly names Emotet, reinforcing this attribution. The document body content is heavily obfuscated and does not provide direct clues to the user-facing lure.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9778438-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9778438-0
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` `2effaaf970b5f9de3ee06c41a03bfb4f772066e9848150d426295dbb68f79b6c`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	12763 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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