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

Static analysis result for SHA-256 a2b662e4c2dd2d66…

MALICIOUS

Office (OOXML) / .DOC

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: 8cac629dc29c3b8d27eef2796291c2ec SHA-1: 526136299f2606df309a536a0589c904c6530960 SHA-256: a2b662e4c2dd2d665967d4bbf6f34f069ec0d1d15af030bde358814ef821756d
122 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The sample is a malicious OOXML document that utilizes remote template injection and external relationships to fetch content from a suspicious IP address. The ClamAV detection 'Doc.Downloader.Redline-9972754-0' strongly suggests this document acts as a downloader for a second-stage payload. The embedded URLs point to a potential download source, indicating the document's primary purpose is to initiate a download and execution chain.

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://185.222.57.177/_------------------_-------------------_------/..._..............---------------------_--------wiz.wiz) — 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://185.222.57.177/_------------------_-------------------_------/..._..............---------------------_--------wiz
  • 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://185.222.57.177/_------------------_-------------------_------/..._..............---------------------_--------wiz.wiz
    • http://185.222.57.177/_------------------_-------------------_------/..._..............---------------------_--------wiz
    • 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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