Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 4574536ce481e11b…

MALICIOUS

Office (OOXML)

17.7 KB Created: 2020-01-28 13:35:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2020-08-10
MD5: 9277c4149601b5dbf883781f0cbef11b SHA-1: 799f257e47e92d2827edeccfebe7c8a8a7f2b03f SHA-256: 4574536ce481e11be3c1ca4957bb78fe549ddc7367f111cdfc40d8147bd01cfa
70 Risk Score

Malware Insights

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

The sample is an OOXML document that contains external hyperlinks and references a remote template, indicating a potential for malicious content injection. The document body discusses civic participation and elections, likely as a lure. The presence of a remote template URL suggests the document is designed to download and execute further malicious content.

Heuristics 4

  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (http://lobanus.hopto.org/rudolfa.dot) — 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://lobanus.hopto.org/rudolfa.dot
  • External hyperlinks (1) low OOXML_EXTERNAL_HYPERLINKS
    Document contains 1 external hyperlink — clickable URLs are stored as external relationships. First target: https://decentralization.gov.ua/gromada
  • 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://decentralization.gov.ua/gromada Document hyperlink
    • 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)
    • http://lobanus.hopto.org/rudolfa.dotRemote template reference

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