PDF static analysis report

Static analysis result for SHA-256 bc08edd2e51f1306…

SUSPICIOUS

PDF

1.46 MB First seen: 2026-05-09
MD5: a6f7e45b7abaf8a35832c3cd43c0be03 SHA-1: d21f28880bc287862ec32b2a340ba85ccd6803d5 SHA-256: bc08edd2e51f1306d85c2c30591dc05390ab7549c58ba31a8221791b3ebdb1e0
44 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript and a hidden HTML iframe, indicating an attempt to exploit vulnerabilities. The presence of an unknown URL suggests a redirection to a malicious site for further exploitation or credential harvesting. The embedded JavaScript is likely responsible for triggering the exploit and redirecting the user.

Machine Learning

  • Nyx PDF Classifier clean score 0.0018

Heuristics 3

  • 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.
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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://www.ereading.cz/mamu.htm In PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/g/img/In PDF document text
    • http://ns.adobe.com/xap/1.0/t/pg/In PDF document text
    • http://ns.adobe.com/xap/1.0/sType/Dimensions#In PDF document text
    • http://ns.adobe.com/xap/1.0/g/In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/sType/ResourceEvent#In PDF document text
    • http://ns.adobe.com/xap/1.0/sType/ResourceRef#In PDF document text
    • http://ns.adobe.com/xmp/InDesign/privateIn PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 8

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_cff_off000032bc.bin pdf-font-stream PDF embedded font (cff) at offset 0x32BC 12612 bytes
SHA-256: b3ba9f2f233131c2d3205e01c3583e1a04e916be837cd498a575e872265d9d12
font_01_cff_off00007461.bin pdf-font-stream PDF embedded font (cff) at offset 0x7461 9217 bytes
SHA-256: 5ec8f3e9fca8ffa1abd24c4839bb99757a2afd34975b9644c06c8a3c4baddb3a
font_02_cff_off00008e9b.bin pdf-font-stream PDF embedded font (cff) at offset 0x8E9B 3586 bytes
SHA-256: 66c6aa484d1db30a6f5989aee9b7234f8570e7da3804f6685d211f25fe505f7a
font_03_cff_off00009b23.bin pdf-font-stream PDF embedded font (cff) at offset 0x9B23 2469 bytes
SHA-256: 07e309493e9895dc35f65980defda41207297e64ee2e21677c79832da86ec50b
font_04_cff_off0015436f.bin pdf-font-stream PDF embedded font (cff) at offset 0x15436F 1086 bytes
SHA-256: 2a154ce143026cd306adad9d9118f2c38cb3f28f9619c97f760cfc3850fdf1ce
font_05_cff_off00155226.bin pdf-font-stream PDF embedded font (cff) at offset 0x155226 9512 bytes
SHA-256: 875fdeca025a1c016fb1e7a59b30c03c270b3cc040f7935176f9f26f3671cb54
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 7.41, consistent with packed or encrypted content.
font_06_cff_off0015707f.bin pdf-font-stream PDF embedded font (cff) at offset 0x15707F 6209 bytes
SHA-256: 9cad05b6efe47d22070289ba03f38369657de748a08f8bc1f9680d407b8878c8
font_07_cff_off0015892b.bin pdf-font-stream PDF embedded font (cff) at offset 0x15892B 4153 bytes
SHA-256: a9f0c8476fbb8d751d956ee74da291a99674e873f70a46c9f9d51d2f458016aa

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