Malicious Office (OOXML) / .DOCX — malware analysis report

Static analysis result for SHA-256 1b4bc3589070b64f…

MALICIOUS

Office (OOXML) / .DOCX

16.3 KB Created: 2017-09-24 17:26:00 UTC Authoring application: Microsoft Office Word 14.0000
MD5: b0e1a06c97d9683737a22d4731a73471 SHA-1: 4055fe30b1a3b7740871a8a2219d81165ecda060 SHA-256: 1b4bc3589070b64fe4f6f076c129907b5375ab1ea695fde3988707275142615c
80 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link

The sample is a DOCX file identified as malicious due to the presence of an external OLE object relationship pointing to a remote URL. This is strongly indicative of an exploit attempt, specifically related to CVE-2017-8759, which leverages OLE objects to download and execute malicious content. The embedded URL 'https://alluringuk.com/images/file/lewis/doc/Purchase.doc' is the primary indicator for a potential second-stage download.

Heuristics 3

  • OOXML OLE2Link remote document — CVE-2017-8759 related high CVE related CVE_2017_8759_RELATED
    Document contains an o:OLEObject Type=Link whose external oleObject relationship fetches a remote Office-looking document. That is the OOXML OLE2Link staging shape used by CVE-2017-8759 campaigns when the remote document/WSDL supplies the SOAP moniker payload; the local file alone does not contain the WSDL body needed for an exact match.
  • External OLE object relationship high OOXML_EXTERNAL_OLE_OBJECT
    Document 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.
  • 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.microsoft.com/office/word/2010/wordprocessingCanvas
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • 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/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

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