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

Static analysis result for SHA-256 8b53957ed788eb89…

MALICIOUS

Office (OOXML) / .DOC

37.1 KB Created: 2023-01-25 06:02:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2023-02-01
MD5: cd2ef15ee8941d702201beed301ccb5a SHA-1: 7cf7030848541c0b667398fd09461c716aa01144 SHA-256: 8b53957ed788eb8960276a54086da37286c04c5d6532a6f7e8289466fc56f42a
102 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The sample contains an embedded OLE object and is related to CVE-2017-0199, indicating it attempts to load external content. The heuristic firings confirm the presence of an external OLE object linked to the URL https://urlpropogationintimitacy.blogspot.com/atom.xml, which is likely used to download and execute a secondary payload.

Heuristics 4

  • 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 OLE object medium OOXML_OLE_OBJECT
    Document contains an embedded OLE object
  • 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/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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ooxml_oleobject_00.bin
68acdc747300a4240f7c6c9f59c09e6d5fb342b20a5113e175ae5735333cc2a6		 ooxml-ole-object OOXML embedded OLE part: word/embeddings/----.---- 16770 bytes

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