Emotet Office (OLE) / .DOCX malware analysis — malicious · 594458a8901ca25a

MALICIOUS

Office (OLE) / .DOCX

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

MD5: a883772a7908651e5d3e53d6669be359 SHA-1: 76ddf2003ce9ebb0c4ba630eee8687ad91bb6a93 SHA-256: 594458a8901ca25ac09d46ae9f0fc9a0ecd336da9af62a1a4f46940b80bad38b

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 executes code using CreateObject. This is a common technique for Emotet to download and execute a second-stage payload. The ClamAV detection explicitly names Emotet, and the heuristic firings strongly support this classification. The document body content is obfuscated and does not provide direct clues to the 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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