Doc.Downloader.Redline-9972754-0 — Office (OOXML) malware analysis

Static analysis result for SHA-256 cbe0a14206426d5f…

MALICIOUS

Office (OOXML)

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: f79b354774ea29cbbb6a556a03d79520 SHA-1: 40d34957c89a0de010ca21c300c50bd15889567c SHA-256: cbe0a14206426d5fe9afe2012f4a05d9505264c360da12e221f68da96524fdc8
122 Risk Score

Malware Insights

Doc.Downloader.Redline-9972754-0 · confidence 90%

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file exhibits characteristics of a downloader, specifically identified by ClamAV as Doc.Downloader.Redline-9972754-0. It leverages OOXML remote template injection and external relationships to fetch content from the URL http://www.5z8.info/instant-purchase_d6x9ak_like-a-rose-for-emily-but-real-and-on-camera. This suggests the document's primary purpose is to act as a lure for downloading and executing a secondary malicious 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://www.5z8.info/instant-purchase_d6x9ak_like-a-rose-for-emily-but-real-and-on-camera) — 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://www.5z8.info/instant-purchase_d6x9ak_like-a-rose-for-emily-but-real-and-on-camera
  • 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://www.5z8.info/instant-purchase_d6x9ak_like-a-rose-for-emily-but-real-and-on-camera
    • 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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