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

Static analysis result for SHA-256 18f5414d33aa5a3c…

MALICIOUS

Office (OOXML) / .DOC

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2023-01-26
MD5: 4d7cd9c316e41723aa0608be0d4cabec SHA-1: 10ac8d63174c933b7a9fead4944ac970dbead588 SHA-256: 18f5414d33aa5a3c6732944c7568747632f54409ead2b9204329b65dd5fb97d2
142 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The sample exhibits high-severity heuristics for remote template injection and external relationships, both pointing to a suspicious URL. ClamAV detection as 'Doc.Downloader.Redline-9972754-0' further confirms its malicious nature. The primary IOC is the URL used for the remote template, which is likely responsible for downloading and executing 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://1234567890OOOOOOOOOOOOOOOOOOOOOOO@3235029125/000000000_OOOOOOO_ooooooo_ooOOOOOOO_OOOOO/OOOOOOOO_OOOOOOO_OOO.doc) — 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 high OOXML_EXTERNAL_REL
    External target in word/_rels/webSettings.xml.rels: http://1234567890OOOOOOOOOOOOOOOOOOOOOOO@3235029125/000000000_OOOOOOO_ooooooo_ooOOOOOOO_OOOOO/OOOOOOOO_OOOOOOO_OOO.doc
  • 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://1234567890OOOOOOOOOOOOOOOOOOOOOOO@3235029125/000000000_OOOOOOO_ooooooo_ooOOOOOOO_OOOOO/OOOOOOOO_OOOOOOO_OOO.doc
    • 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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