Office (OLE) / .DOCX malware analysis — malicious · 51fc6f80bb24d135

MALICIOUS

Office (OLE) / .DOCX

178.0 KB Created: 2020-10-22 10:11:00 Authoring application: Microsoft Office Word

MD5: 4da0d56d4109c319a787b07ca6389ed6 SHA-1: d433867707785b0d41527982f5a2a70fa60824e8 SHA-256: 51fc6f80bb24d135bba70ff8841d75b55f19f4d1d28fc06bc37592e9cbb9e795

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic for Applications T1566.001 Spearphishing Attachment T1059.001 PowerShell

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, indicate malicious intent. The presence of a VBA macro suggests the document is designed to execute code upon opening, likely to download and run a secondary payload. The obfuscated document body content further supports a lure to enable macros.

Heuristics 7

ClamAV: Doc.Downloader.Logan-9781905-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Logan-9781905-0
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` `f977b274eae3d98ca756a10910ec7f42c1a29b087c225685f92a2f289133a3d9`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18827 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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