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

Static analysis result for SHA-256 f549c6af01bbef3a…

MALICIOUS

Office (OOXML) / .DOC

365.3 KB Created: 2023-02-20 01:06:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2023-02-20
MD5: a006bb4ded77c77b4d984f498cb786f3 SHA-1: b393cf556daca1c3359e358823a07040e6e8acb6 SHA-256: f549c6af01bbef3ade94013a01a7e9d688882f01d8095009d36bdb761600a30d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1059 Command and Scripting Interpreter

The sample leverages an OOXML OLE2Link external object to load content from the URL https://urlpropogationintimitacy.blogspot.com/atom.xml, which is indicative of exploiting CVE-2017-0199. This technique is used to download and execute a second-stage payload. The presence of an external OLE object further supports this attack vector.

Heuristics 3

  • OOXML OLE2Link remote loader — CVE-2017-0199 related high CVE related CVE_2017_0199_RELATED
    Document 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.
  • 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 https://www.mediafire.com/file/m7oygqrz43p13io/TempHOtel.docx/file
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2006/wordml
    • https://urlpropogationintimitacy.blogspot.com/atom.xml

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