MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though partially corrupted, contains text related to 'free piano sheet music' and a URL pointing to a known malicious redirector. The presence of many external links, including a link farm, suggests an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes. No scripts were extracted, but the overall structure and embedded links indicate a phishing or redirection attempt.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne 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 https://ttraff.com/pify?keyword=free+piano+sheet+music+hallelujah+chorus
- http://files.qaradaki.com/uploads/1/3/1/1/131164236/266f0a8.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/9567/8357/files/sample_character_reference_letter_for_court_child_custody.pdf
- https://cdn.shopify.com/s/files/1/0430/0144/6554/files/10172356798.pdf
- https://cdn.shopify.com/s/files/1/0434/2900/3416/files/17034890171.pdf
- https://cdn.shopify.com/s/files/1/0429/9754/7157/files/61987514064.pdf
- https://cdn.shopify.com/s/files/1/0433/9420/3806/files/objetivos_de_las_bases_de_datos_distribuidas.pdf
- https://cdn.shopify.com/s/files/1/0431/9353/2573/files/vemixanomunepas.pdf
- https://cdn.shopify.com/s/files/1/0432/9694/8382/files/26562436560.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/59526866216.pdf
- https://cdn.shopify.com/s/files/1/0435/4303/6053/files/vevagawisegipadek.pdf
- https://cdn.shopify.com/s/files/1/0450/4908/6102/files/citroen_ds4_manual.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00003da5.bin6b5afd68a6551c9baf54d3525aa6340af1fce650024d8a1f4728cb8a4b52aa82 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x3DA5 | 5204 bytes |
font_01_sfnt_off00004f27.bin63fb209cca38c699d94165ee7dc56cc60b485cd7084609add52574e266ba4424 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4F27 | 8980 bytes |
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