Redline — Office (OOXML) / .DOC malware analysis

Static analysis result for SHA-256 2244a4685966cfd2…

MALICIOUS

Office (OOXML) / .DOC

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: b2d2d9115bd393babe0f8b177b0d45fd SHA-1: 43e5066339c3bcc4bd9e353c116f7bc16ecdf7f6 SHA-256: 2244a4685966cfd237ab4abba59f80b8c2eabd52ccf3ea5ddc0ef431ef458991
122 Risk Score

Malware Insights

Redline · confidence 85%

MITRE ATT&CK
T1218 System Binary Proxy Execution T1027 Obfuscated Files or Information T1204.002 User Execution: Malicious File T1566.001 Phishing: Spearphishing Attachment T1218.003 // a bit too specific, maybe just T1218 or T1204.002. Let's stick to T1204.002 and T1566.001. Let's refine the MITRE IDs

The sample utilizes remote template injection via http://alturl.com/ydvpe to fetch a malicious template. ClamAV detection as Doc.Downloader.Redline-9972754-0 directly attributes the sample to the Redline stealer family. No scripts were extracted from this sample.

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://alturl.com/ydvpe) — 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://alturl.com/ydvpe
  • 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.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
    • http://alturl.com/ydvpe

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