Malicious PDF — malware analysis report

Static analysis result for SHA-256 54dcc515186eac1b…

MALICIOUS

PDF

235.8 KB Created: 2010-02-28 19:19:28 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 2.5.000_PHP4 (http://www.tcpdf.org)) First seen: 2026-05-10
MD5: 076348e12199ee780f2980abe99bd644 SHA-1: 9dd869bde870a57a18bcac77f09a6553f07f0439 SHA-256: 54dcc515186eac1b527d3df67f2e5aafb87fba71fd1f9c88dfc225e66b4707b0
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a hidden external HTML iframe, indicating an attempt to redirect the user to malicious content. The embedded URLs are associated with this redirection. The heuristics suggest a phishing or redirection attack, likely to download further malicious content.

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 In PDF document text
    • http://reycross.com/lib/index.phpIn PDF document text
    • http://odmarco.com/lib/index.phpIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_001_off0000049b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49B 91432 bytes
SHA-256: 5b0765156a7522e1b20f16cb911bf3a03d568d8ee9f5cab18481d8449fa81040
stream_002_off0000b9ed.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xB9ED 264072 bytes
SHA-256: a5337ef1f5a0dfe4dc8fa6b4f3ef847a53624800b5928a0eeef5b888ceecaabc

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