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

Static analysis result for SHA-256 a39a9f8cabbabeab…

MALICIOUS

Office (OOXML) / .DOC

11.5 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 15.0000
MD5: 3fc7ae9bbf760aa1f42a90696e953fee SHA-1: 6183408ee424f3c9eadb2f801bd38fd15618416d SHA-256: a39a9f8cabbabeab4e5036972abd2c8d218eded843cb5b6b179851d2efc97292
120 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution

The file is identified as malicious by ClamAV with a 'Doc.Downloader' signature, indicating its purpose is to download additional malware. Heuristics indicate remote template injection and external relationships, both common techniques for delivering malicious content. The embedded URL 'https://bribble.com/zhM8G' is highly suspicious and likely serves as the download source for the secondary 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 (https://bribble.com/zhM8G) — 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: https://bribble.com/zhM8G
  • 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