Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 b1cb6256729d00e1…

MALICIOUS

Office (OOXML)

33.4 KB Created: 2016-10-17 14:30:00 UTC Authoring application: Microsoft Office Word 16.0000 First seen: 2021-07-07
MD5: be6411a96451748a7a5f65929aed7ef5 SHA-1: bfadb41c43acbbc1b86ac892d983bdbdfd557071 SHA-256: b1cb6256729d00e1dcddaffa6911da3af0d6436616b2ae2a0f84a036fcc5f4bb
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The OOXML file contains heuristics indicating the use of external hyperlinks and remote template injection, pointing to a malicious document. The embedded URLs and document body suggest an attempt to disguise the malicious intent by referencing official-sounding regulations. The primary goal appears to be tricking the user into interacting with malicious external resources, likely leading to further compromise.

Heuristics 4

  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (http://fcahome/readingrm/handbook/FCA Regulation/Forms/template.dotx) — 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://fcahome/readingrm/handbook/FCA Regulation/Forms/template.dotx
  • External hyperlinks (1) low OOXML_EXTERNAL_HYPERLINKS
    Document contains 1 external hyperlink — clickable URLs are stored as external relationships. First target: http://ww3.fca.gov/readingrm/fedreg/Federal Register Documents/81 FR 49139.docx
  • 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://ww3.fca.gov/readingrm/fedreg/Federal Document hyperlink
    • http://fcahome/readingrm/handbook/FCARemote template reference
    • http://schemas.microsoft.com/office/word/2010/wordprocessingCanvasIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2014/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2015/9/8/chartexIn document text (OOXML body / shared strings)
    • 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.microsoft.com/office/word/2010/wordprocessingDrawingIn 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/2010/wordmlIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2012/wordmlIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2015/wordml/symexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroupIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInkIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2006/wordmlIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShapeIn document text (OOXML body / shared strings)