Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 4cb2e76d00b52260…

MALICIOUS

Office (OOXML)

85.1 KB Created: 2020-06-30 00:38:00 UTC Authoring application: WPS Office_11.1.0.9912_F1E327BC-269C-435d-A152-05C5408002CA
MD5: b0e698d2c388d879ae4330b067a64a6f SHA-1: d4b34005692fd7a0653f31847c9ca239f9e6cbe5 SHA-256: 4cb2e76d00b522602f0e108c7715a83e5e21f155a5e0700a25c1a49c84296736
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample exhibits characteristics of a malicious OOXML document, specifically the use of remote template injection and external relationships pointing to a suspicious URL. This indicates an attempt to load external content, likely a malicious template, from http://34.150.94.110:8000/confige.dotm. The document body text '服务器项目清单' (Server Project List) is likely a lure to encourage the user to open the document.

Heuristics 3

  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (http://34.150.94.110:8000/confige.dotm) — 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/settings.xml.rels: http://34.150.94.110:8000/confige.dotm
  • 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://34.150.94.110:8000/confige.dotm
    • http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2010/wordml
    • http://schemas.microsoft.com/office/word/2012/wordml
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroup
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInk
    • http://schemas.microsoft.com/office/word/2006/wordml
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShape
    • http://www.wps.cn/officeDocument/2013/wpsCustomData

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