Office (OLE) / .DOCX malware analysis — malicious · 9e786d5fa88f060d

MALICIOUS

Office (OLE) / .DOCX

215.1 KB Created: 2020-09-21 07:35:00 Authoring application: Microsoft Office Word

MD5: 64c8bcb7ed33a21196ae2f3344f5c778 SHA-1: 68b2cea3cf888af60d904a7c6899730639c65b4f SHA-256: 9e786d5fa88f060de3c17627c28c9a844f4e85036c0e90f0a4c5ac75e9b88fee

280 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File T1140 Deobfuscate or Decode Files or Information

The sample is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that utilizes CreateObject and GetObject calls. This indicates a downloader functionality, likely to fetch and execute a secondary payload. The ClamAV detection 'Doc.Downloader.Generic-9764473-0' further supports this assessment. No specific malware family could be identified, but the technique strongly suggests a downloader.

Heuristics 8

ClamAV: Doc.Downloader.Generic-9764473-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9764473-0
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` `a72546be4835befa0cd5934bb3d180228dbaffbae6f31f70f11c03f05171f092`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19249 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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