Malicious PDF — malware analysis report

Static analysis result for SHA-256 061286f29f9739df…

MALICIOUS

PDF

235.8 KB Created: 2010-02-27 19:23:55 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 2.5.000_PHP4 (http://www.tcpdf.org))
MD5: bb4dccad935b480f27929d718b407e66 SHA-1: 7185e0128c5bcfb58a108d898527609f8bfc4f4e SHA-256: 061286f29f9739df4f4b8dbd2e685754aa42c6c7e1e86db9eccc4c6874cc51e1
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier as malicious and contains a hidden external HTML iframe. This iframe likely points to one of the embedded URLs, which are suspected to host malicious content or redirect to further stages of an attack. The presence of these elements suggests a phishing attempt or a drive-by download vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9482

Heuristics 2

  • PDF contains hidden external HTML iframe high PDF_HIDDEN_HTML_IFRAME
    PDF bytes contain a hidden zero-size HTML iframe pointing to an external HTTP(S) URL. This is a strong malicious dropper/redirect indicator and is not expected in ordinary PDF content.
  • 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://fuadrenal.com/lib/index.php
    • http://reycross.com/lib/index.php
    • http://odmarco.com/lib/index.php
    • http://www.gnu.org/copyleft/gpl.html

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000b9ed.bin
a5337ef1f5a0dfe4dc8fa6b4f3ef847a53624800b5928a0eeef5b888ceecaabc		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xB9ED 264072 bytes

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