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

Static analysis result for SHA-256 17e1e66a358c9e50…

MALICIOUS

Office (OOXML) / .DOC

16.0 KB Created: 2023-03-27 22:13:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2023-09-12
MD5: bc93679f6583787c367b05d4c1317daa SHA-1: 90a2ea6523fee0d506f6b563fe0123af37b3daf0 SHA-256: 17e1e66a358c9e50d40db52b3f32033feb186599ab221c09f234e5134b8303f8
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The file is detected as a downloader by ClamAV and exhibits characteristics of a macro-based lure, instructing the user to enable content. It uses remote template injection and external relationships pointing to the URL http://185.28.39.17:7777/185.28.39.18/arinzezx.doc, which is likely used to fetch and execute a second-stage payload.

Heuristics 5

  • ClamAV: Doc.Downloader.Loda-7570590-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Loda-7570590-0
  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (http://185.28.39.17:7777/185.28.39.18/arinzezx.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/settings.xml.rels: http://185.28.39.17:7777/185.28.39.18/arinzezx.doc
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • 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://185.28.39.17:7777/185.28.39.18/arinzezx.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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