Emotet Office (OLE) / .DOC malware analysis — malicious · a2f0e1bed49f4322

MALICIOUS

Office (OLE) / .DOC

119.2 KB Created: 2019-10-29 19:59:00 Authoring application: Microsoft Office Word

MD5: c4579a7a8b395002be4934c8f7434d5e SHA-1: 2dcf5481b2ecc1851a4851a848501220a72cc4f0 SHA-256: a2f0e1bed49f432262599e4fc331a2e6e8090977db93c7ce8e57fbf0f5396f2e

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file is a Microsoft Word document containing a large VBA macro, specifically triggering an AutoOpen function. Heuristics indicate the use of CreateObject for execution, and ClamAV identifies it as 'Doc.Downloader.Emotet-7364742-0'. The presence of the 'macros.bas' artifact and the AutoOpen execution strongly suggest a downloader functionality, typical of Emotet, designed to fetch and execute further malicious content.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-7364742-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-7364742-0
AutoOpen macro high OLE_VBA_AUTOOPEN

AutoOpen 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` `78b6cf49afe1a6abceca163138b770fa443db70968fe6d106ecfdb3899735f6a`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	47777 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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