Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 64233c44b4bbedb1…

MALICIOUS

Office (OOXML)

10.8 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2021-10-07
MD5: f1c74467d190322b453f0141130d086e SHA-1: b8b3356872fe7053ee7c269a5576ed44c28cf0b9 SHA-256: 64233c44b4bbedb18d0e1a2898f0ad3c0c714ed58af472552a55681fdb8d10b1
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is an OOXML document that exhibits remote template injection and external relationship heuristics, both pointing to the URL http://cml.ll/tj7g80. This indicates the document is likely designed to download and execute a secondary payload from this external source, a common technique for malware delivery.

Heuristics 3

  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (http://cml.ll/tj7g80) — 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/webSettings.xml.rels: http://cml.ll/tj7g80
  • 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://cml.ll/tj7g80 Remote template reference
    • http://schemas.openxmlformats.org/markup-compatibility/2006In document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/relationshipsIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/mathIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawingIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/wordprocessingml/2006/mainIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2006/wordmlIn document text (OOXML body / shared strings)

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