Redline — Office (OOXML) / .DOC malware analysis

Static analysis result for SHA-256 46922feed940687d…

MALICIOUS

Office (OOXML) / .DOC

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: 36b9a72e82c12ca97547ddeb5cacbf3f SHA-1: f52d0ffd994dc3946c10ea5a2d91062c7a6bb798 SHA-256: 46922feed940687d04d20c0d6856c4bfc35907bee18e29c2d066aacd387df9d9
122 Risk Score

Malware Insights

Redline · confidence 95%

MITRE ATT&CK
T1204.002 Malicious File

The file exhibits critical heuristic firings for remote template injection and external relationships, indicating an attempt to load external content. ClamAV detection as 'Doc.Downloader.Redline-9972754-0' strongly suggests the Redline family. The embedded unknown URL 'https://s3r.io/kud2Jr' is likely the source for downloading a secondary payload, consistent with a downloader's behavior.

Heuristics 4

  • ClamAV: Doc.Downloader.Redline-9972754-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Redline-9972754-0
  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (https://s3r.io/kud2Jr) — 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: https://s3r.io/kud2Jr
  • 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://s3r.io/kud2Jr
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2006/wordml

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