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

Static analysis result for SHA-256 a0f1cb4197fe6f18…

MALICIOUS

Office (OOXML) / .DOCX

11.5 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 15.0000
MD5: 7ad1ba8b9b06c4d14aed0b45ed6f396a SHA-1: b737870e2d5fdc2359cfcb16d989d31bf5212160 SHA-256: a0f1cb4197fe6f18cc664ed6eacb6d2ef8597eca7723d4130f1b0ed5d5ad1669
140 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment

The sample was detected as a downloader by ClamAV. Heuristics indicate the use of a remote template injection and an external relationship, both pointing to the URL http://kungglobalinvestmenteductgpmstdy8addres.duckdns.org/office/invoice_11151.doc. This suggests the document is designed to download and execute a second-stage payload from that location.

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://kungglobalinvestmenteductgpmstdy8addres.duckdns.org/office/invoice_11151.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://kungglobalinvestmenteductgpmstdy8addres.duckdns.org/office/invoice_11151.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://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

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