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

Static analysis result for SHA-256 0014a45ae52c9443…

MALICIOUS

Office (OOXML) / .DOC

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2023-01-20
MD5: 3c38c3b169bedb037cee953bf1cb5337 SHA-1: 28b9865f270988d11715e5bc7198ec5d56836da4 SHA-256: 0014a45ae52c94430c3e11044f1ea495c7b490600a3d014d365c2d55dc2b79dd
142 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The sample exhibits critical heuristic firings for remote template injection and external relationships, indicating an attempt to load external content. The ClamAV detection as 'Doc.Downloader.Redline' further supports its malicious nature. The primary IOC is the suspicious URL used for these external relationships, likely serving as a download source for a 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 (http://00000100000000000400000000000001000000000000@3221452405/_--00_o0-0oo0-o0-o______---0-o_o0-__________o0o-__________/xgyyhjujujjdfjghjf) — 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 high OOXML_EXTERNAL_REL
    External target in word/_rels/webSettings.xml.rels: http://00000100000000000400000000000001000000000000@3221452405/_--00_o0-0oo0-o0-o______---0-o_o0-__________o0o-_________
  • 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://00000100000000000400000000000001000000000000@3221452405/_--00_o0-0oo0-o0-o______---0-o_o0-__________o0o-__________/xgyyhjujujjdfjghjf
    • http://00000100000000000400000000000001000000000000@3221452405/_--00_o0-0oo0-o0-o______---0-o_o0-__________o0o-__________/xgyyhjujujjdfjghjfdggsahfhfghf.doc
    • http://00000100000000000400000000000001000000000000@3221452405/_--00_o0-0oo0-o0-o______---0-o_o0-__________o0o-_________
    • 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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