Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 30159a1143b4cfd1…

MALICIOUS

Office (OOXML)

44.0 KB Created: 2020-02-25 05:41:00 UTC Authoring application: Microsoft Office Word 15.0000 First seen: 2021-09-16
MD5: 3622a3d2bb9bbb476e90210dbef9ba7e SHA-1: 1385e945bf513d5ea64b6f7c0dfa92f80c9ece32 SHA-256: 30159a1143b4cfd1cbc31f8f28b20a48994885fca2362aa8891a4acb2749980b
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The critical ClamAV heuristic identified the file as Doc.Downloader.Gamaredon-9966166-1, indicating a downloader. The presence of external hyperlinks and a remote template injection heuristic pointing to 'http://usa-national.info/GPU/self/relic.dot' strongly suggests the document is designed to trick the user into downloading a malicious template. The document body, presented as a legal appeal, serves as a lure to encourage this action.

Heuristics 5

  • ClamAV: Doc.Downloader.Gamaredon-9966166-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Gamaredon-9966166-1
  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (http://usa-national.info/GPU/self/relic.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://usa-national.info/GPU/self/relic.dot
  • External hyperlinks (3) low OOXML_EXTERNAL_HYPERLINKS
    Document contains 3 external hyperlinks — clickable URLs are stored as external relationships. First target: https://zakon.rada.gov.ua/laws/show/4651-17
  • 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://zakon.rada.gov.ua/laws/show/4651-17 Document hyperlink
    • http://usa-national.info/GPU/self/relic.dotRemote template reference
    • http://schemas.microsoft.com/office/word/2010/wordprocessingCanvasIn 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/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)

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

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