MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lead users to malicious content. The document body, though heavily obfuscated, contains the same URL and a reference to a book PDF, suggesting a lure. The presence of numerous external links, many pointing to Shopify domains, indicates a link farm strategy to obscure the ultimate destination. The ML classifier strongly flagged this PDF as malicious.
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.cc/pify?keyword=bridging+the+gap+book+pdf
- http://files.hookingforthehomeless.com/uploads/1/3/1/3/131383478/9042037.pdf
- http://files.oakwren.com/uploads/1/3/1/3/131397987/dea36190c.pdf
- http://zanunigi.cardiac-imaging.org/uploads/1/3/1/4/131408899/2950374.pdf
- https://cdn.shopify.com/s/files/1/0446/9918/9402/files/perfect_attendance_certificate_free.pdf
- https://cdn.shopify.com/s/files/1/0429/9345/1159/files/sudemafebikigodam.pdf
- https://cdn.shopify.com/s/files/1/0429/9715/3943/files/visopibomawiramin.pdf
- https://cdn.shopify.com/s/files/1/0429/2381/9175/files/35316482233.pdf
- https://cdn.shopify.com/s/files/1/0432/3934/2248/files/25914880661.pdf
- https://cdn.shopify.com/s/files/1/0430/1769/9477/files/nefixivene.pdf
- https://cdn.shopify.com/s/files/1/0433/0812/2270/files/92427754144.pdf
- https://cdn.shopify.com/s/files/1/0433/0166/6969/files/autocad_2020_new_features.pdf
- https://cdn.shopify.com/s/files/1/0434/4990/9415/files/56747972119.pdf
- https://cdn.shopify.com/s/files/1/0434/7871/2472/files/badosumikovinob.pdf
- https://cdn.shopify.com/s/files/1/0432/1725/6603/files/ragewozupojokisifixu.pdf
- https://cdn.shopify.com/s/files/1/0433/4993/4229/files/fizilokixovi.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000086b3.binea80ff5f06057b931c3fa9aa3cb602cd8de2650884da216c9eeb80cd046f9459 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x86B3 | 5344 bytes |
font_01_sfnt_off000098dd.bina60b6c128220bef867d99dbb5e19385ac6a760de33653c7e4516cee651ab0e15 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x98DD | 11016 bytes |
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