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

Static analysis result for SHA-256 c3089eea1c989ee9…

MALICIOUS

Office (OOXML) / .DOC

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: 6f850a682ed5fe4cc2573d14aa89072c SHA-1: 5eed86512060a317a4ea66694763285f75f759ad SHA-256: c3089eea1c989ee93ec51e9f1a3d7971a51665589310fbbaf50edd7ab655d655
122 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The file exhibits critical heuristic firings for ClamAV detection as Doc.Downloader.Redline, indicating it's a downloader. High and medium severity heuristics for OOXML remote template injection and external relationships point to the use of malicious external resources. The embedded unknown-reputation URL is likely the source for the payload download, consistent with a downloader's function. No scripts were extracted, but the heuristics strongly suggest a payload delivery mechanism.

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://192.210.218.110/....wWw..-wWW-w.wW.-ww--w.-.wWw......------wWW.W.....Ww..--w.wW/....wWw..-wWW-w.wW.-ww--w.-.wWw......------wWW.W.....) — 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://192.210.218.110/....wWw..-wWW-w.wW.-ww--w.-.wWw......------wWW.W.....Ww..--w.wW/....wWw..-wWW-w.wW.-ww--w.-.wWw..
  • 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://192.210.218.110/....wWw..-wWW-w.wW.-ww--w.-.wWw......------wWW.W.....Ww..--w.wW/....wWw..-wWW-w.wW.-ww--w.-.wWw......------wWW.W
    • http://192.210.218.110/....wWw..-wWW-w.wW.-ww--w.-.wWw......------wWW.W.....Ww..--w.wW/....wWw..-wWW-w.wW.-ww--w.-.wWw......------wWW.W.....Ww..--w.wW.-w-wwwW._--.-----.-w.wiz
    • http://192.210.218.110/....wWw..-wWW-w.wW.-ww--w.-.wWw......------wWW.W.....Ww..--w.wW/....wWw..-wWW-w.wW.-ww--w.-.wWw
    • 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