Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 01da1a2ea23434d4…

MALICIOUS

Office (OOXML)

21.0 KB Created: 2021-09-20 13:25:00 UTC Authoring application: Microsoft Office Word 16.0000 First seen: 2021-10-07
MD5: 00f61bdf5d04a8551b5e15c1f74083c0 SHA-1: fb4b5ee46f069670f69f232d972cc71105978de4 SHA-256: 01da1a2ea23434d43cc4d4d97876d6ba5dd50ed987eb8becc5afe99827071879
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The OOXML_REMOTE_TEMPLATE and OOXML_EXTERNAL_REL heuristics indicate that the document is configured to load content from an external URL. This URL, http://nay78.glow.nakushita.ru/PR_KYY/endless.abr, is highly suspicious and likely serves as a lure for a secondary stage. The document also contains a mailto link, which could be used for further phishing attempts.

Heuristics 4

  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (http://nay78.glow.nakushita.ru/PR_KYY/endless.abr) — a common remote-template-injection vector used by Hancitor, Emotet and many phishing campaigns. Word can fetch and apply the remote template; macros in that template may execute depending on Office policy and trust state.
  • External relationship medium OOXML_EXTERNAL_REL
    External target in word/_rels/settings.xml.rels: http://nay78.glow.nakushita.ru/PR_KYY/endless.abr
  • External hyperlinks (1) low OOXML_EXTERNAL_HYPERLINKS
    Document contains 1 external hyperlink — clickable URLs are stored as external relationships. First target: mailto:economy@
  • 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://nay78.glow.nakushita.ru/PR_KYY/endless.abr Document hyperlink
    • http://schemas.microsoft.com/office/word/2010/wordprocessingCanvasDocument hyperlink
    • http://schemas.microsoft.com/office/drawing/2014/chartexDocument hyperlink
    • http://schemas.openxmlformats.org/markup-compatibility/2006Document hyperlink
    • http://schemas.openxmlformats.org/officeDocument/2006/relationshipsDocument hyperlink
    • http://schemas.openxmlformats.org/officeDocument/2006/mathDocument hyperlink
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawingDocument hyperlink
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawingDocument hyperlink
    • http://schemas.openxmlformats.org/wordprocessingml/2006/mainDocument hyperlink
    • http://schemas.microsoft.com/office/word/2010/wordmlDocument hyperlink
    • http://schemas.microsoft.com/office/word/2012/wordmlDocument hyperlink
    • http://schemas.microsoft.com/office/word/2015/wordml/symexDocument hyperlink
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroupDocument hyperlink
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInkDocument hyperlink
    • http://schemas.microsoft.com/office/word/2006/wordmlDocument hyperlink
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShapeDocument hyperlink