Doc.Downloader.Redline-9972754-0 — Office (OOXML) malware analysis

Static analysis result for SHA-256 9643f3d17589d2e9…

MALICIOUS

Office (OOXML)

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2021-10-12
MD5: a01ab41458335d38a6745933d69d4300 SHA-1: 31bc2866cbe9d5d809f99ef129b195948be9bafb SHA-256: 9643f3d17589d2e9af5c913dd8940ebaeedda8350df8989a63bf115ae6aa18f7
122 Risk Score

Malware Insights

Doc.Downloader.Redline-9972754-0 · confidence 95%

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file exhibits critical heuristic firings for OOXML remote template and external relationship injections, pointing to a malicious URL. ClamAV identifies the file as Doc.Downloader.Redline-9972754-0, indicating its function as a downloader. The embedded URLs are highly suspicious and likely serve as the source for a secondary payload.

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 (http://107.172.13.160/..-...................-...................._...................---wiz..-/.-.....................-.....................) — 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://107.172.13.160/..-...................-...................._...................---wiz..-/.-.....................-.
  • 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://107.172.13.160/..-...................-...................._...................---wiz..-/.-.....................- Remote template reference
    • http://107.172.13.160/..-...................-...................._...................---wiz..-/.-.....................-.......................-..............-........-.wizRemote 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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