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

Static analysis result for SHA-256 db71027f35d4f8c7…

MALICIOUS

Office (OOXML) / .DOC

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: d16406b4970dd0b483acfd85944cd7fb SHA-1: ee53d707a2f87a67c9c19a749baf3b53d8b7a363 SHA-256: db71027f35d4f8c786534abfe83cef72652194af6f535838ce0e16d47c75b1f3
120 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The sample is a malicious OOXML document that uses remote template injection to load an external template from the URL http://172.245.45.28/torotoro/nd.dot. This technique is commonly used to download and execute further stages of malware. The ClamAV detection name 'Doc.Downloader.Redline-9972754-0' also suggests a downloader functionality.

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://172.245.45.28/torotoro/nd.dot) — 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://172.245.45.28/torotoro/nd.dot
  • 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://172.245.45.28/torotoro/nd.dot
    • 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