Malicious Office (OOXML) / .DOC — malware analysis report

Static analysis result for SHA-256 090afb48c7e4d1e1…

MALICIOUS

Office (OOXML) / .DOC

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: 552214190703ccaffba4c222ca4cd779 SHA-1: b93492865afe4ccfb27ae046f5d03cc60b62c6af SHA-256: 090afb48c7e4d1e1275ecaf8da8a802a6384a0241b92a4ea2e01b599a4c9f9d0
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is identified as malicious by ClamAV as Doc.Downloader.Redline-9972754-0. Heuristics indicate the use of remote template injection and external relationships, pointing to the embedded URLs as the source of malicious content. These URLs are likely used to download and execute a second-stage 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://198.23.207.82/...----------------------.--------.-------------------.-/..--------------------.---------------.....------wiz.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://198.23.207.82/...----------------------.--------.-------------------.-/..--------------------.---------------....
  • 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://198.23.207.82/...----------------------.--------.-------------------.-/..--------------------.---------------.....------wiz.wiz
    • http://198.23.207.82/...----------------------.--------.-------------------.-/..--------------------.---------------
    • 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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