Emotet Office (OLE) / .DOCX malware analysis — malicious · b4cd4a99e9d182e9

MALICIOUS

Office (OLE) / .DOCX

164.1 KB Created: 2020-09-22 18:24:00 Authoring application: Microsoft Office Word

MD5: bff0a92f07df33f882ef7e0bd5afc0de SHA-1: 403bd00ff36d59de6b0bfba959d67c1902f09621 SHA-256: b4cd4a99e9d182e9f3d54e9a411c11a9387c6b0342d856419e9678af67183110

280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The file contains VBA macros, specifically a Document_Open macro that utilizes CreateObject and GetObject calls. ClamAV identifies this as Doc.Downloader.Emotet-9765458-0. The presence of a Document_Open macro that executes code upon opening strongly suggests a downloader or droppper functionality, aiming to fetch and execute a second-stage payload. The embedded URL, though benign according to reputation, is often a placeholder or part of a more complex delivery chain.

Heuristics 8

ClamAV: Doc.Downloader.Emotet-9765458-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9765458-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
GetObject call high OLE_VBA_GETOBJ

GetObject 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` `bd654d20c055e0b0e127587789558080b1c423748b3142eb9ab3aa76d6d97f9b`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20393 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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