MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File: User Execution
T1059.005 PowerShell
The sample leverages an embedded OLE object containing a VBA macro, which is designed to exploit CVE-2017-0199. This vulnerability allows the document to download and execute a secondary payload from the provided mediafire URLs. The embedded macro's auto-execution capability and the external OLE object pointing to a downloadable file strongly indicate a malicious downloader.
Heuristics 6
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OOXML OLE2Link remote loader — CVE-2017-0199 related high CVE_2017_0199_RELATEDDocument contains an o:OLEObject Type=Link whose external oleObject relationship points to a remote URL. This is the OOXML OLE2Link activation shape associated with CVE-2017-0199 delivery, but the local file does not expose URL Moniker bytes or a weaponized extension/content type, so the exact CVE cannot be proven statically.
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Embedded Office object carries macros critical OFFICE_EMBEDDED_MACRO_OBJECTThis document embeds a second Office file that itself contains a VBA macro project or an Excel 4.0 (XLM) macro sheet. Hiding a macro-bearing workbook or document inside another document — frequently under an obfuscated, non-standard part name — is a macro-smuggling technique that defeats scanners which only inspect the outer document's macro storage. No benign authoring workflow stages a hidden macro project this way.
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External OLE object relationship high OOXML_EXTERNAL_OLE_OBJECTDocument contains an oleObject relationship whose target is an external HTTP(S) URL. Office resolves this through OLE/object update paths rather than as a normal user-clicked hyperlink.
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Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGEOne 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.
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Embedded OLE object medium OOXML_OLE_OBJECTDocument contains an embedded OLE object
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Embedded URL info EMBEDDED_URLOne 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 https://www.mediafire.com/file/4tmzlxhsw11ua84/TAX_file_Loading.docx/file
- https://www.mediafire.com/file/8cc0e6ohfqnk7yp/3.htm/file
- http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas
- http://schemas.microsoft.com/office/drawing/2014/chartex
- http://schemas.microsoft.com/office/drawing/2015/9/8/chartex
- http://schemas.microsoft.com/office/drawing/2015/10/21/chartex
- http://schemas.microsoft.com/office/drawing/2016/5/9/chartex
- http://schemas.microsoft.com/office/drawing/2016/5/10/chartex
- http://schemas.microsoft.com/office/drawing/2016/5/11/chartex
- http://schemas.microsoft.com/office/drawing/2016/5/12/chartex
- http://schemas.microsoft.com/office/drawing/2016/5/13/chartex
- http://schemas.microsoft.com/office/drawing/2016/5/14/chartex
- http://schemas.openxmlformats.org/markup-compatibility/2006
- http://schemas.microsoft.com/office/drawing/2016/ink
- http://schemas.microsoft.com/office/drawing/2017/model3d
- http://schemas.microsoft.com/office/2019/extlst
- http://schemas.openxmlformats.org/officeDocument/2006/relationships
- http://schemas.openxmlformats.org/officeDocument/2006/math
- http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing
- http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
- http://schemas.openxmlformats.org/wordprocessingml/2006/main
- http://schemas.microsoft.com/office/word/2010/wordml
- http://schemas.microsoft.com/office/word/2012/wordml
- http://schemas.microsoft.com/office/word/2018/wordml/cex
- http://schemas.microsoft.com/office/word/2016/wordml/cid
- http://schemas.microsoft.com/office/word/2018/wordml
- http://schemas.microsoft.com/office/word/2020/wordml/sdtdatahash
- http://schemas.microsoft.com/office/word/2015/wordml/symex
- http://schemas.microsoft.com/office/word/2010/wordprocessingGroup
- http://schemas.microsoft.com/office/word/2010/wordprocessingInk
- http://schemas.microsoft.com/office/word/2006/wordml
- http://schemas.microsoft.com/office/word/2010/wordprocessingShape
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
ooxml_oleobject_00.bin394a71783b69dbc247229fa94b86340392ef13c2a94bebc88b0d48c88b3b3e31 |
ooxml-ole-object | OOXML embedded OLE part: word/embeddings/Microsoft_Excel_97-2003_Worksheet3.xls | 43008 bytes |
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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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