MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that lead to a known malicious redirector, disguised as information about university tuition fees. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and the presence of the URL in the document body strongly indicate a phishing or redirection attempt. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the document's structure and embedded URLs point to a social engineering attack.
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.ru/pify?keyword=cavendish+university+zambia+tuition+fees+pdf
- https://static.usrfiles.com/ugd/4b7290_0b1b7ce7b4ab4e6b8f28a2ae9bb9af92.pdf
- https://static.usrfiles.com/ugd/b8c837_a5b6b2e2ebab4cee956829f534e28626.pdf
- https://static.usrfiles.com/ugd/18574e_80ec9af15074414384cf7626d920fdcd.pdf
- https://static.usrfiles.com/ugd/5bb01c_79f0745e552747468302a1d147d74362.pdf
- https://static.usrfiles.com/ugd/361f4b_0e22379b55a641e4a179ab63935a93f4.pdf
- https://static.usrfiles.com/ugd/b8c837_941cb09722124005a9a745a8750c1b6b.pdf
- https://static.usrfiles.com/ugd/b8c837_d307585f8fdc43e7ab79e7c39acc6d58.pdf
- https://static.usrfiles.com/ugd/c3f59f_d0585a30f7a944d680b1d40b0b1c46e1.pdf
- https://static.usrfiles.com/ugd/b8c837_66def0301fec4b8982a9bcd60fb46537.pdf
- https://cdn.shopify.com/s/files/1/0434/8762/5369/files/albinismo_tratamiento.pdf
- https://cdn.shopify.com/s/files/1/0431/3153/5509/files/biceps_workout_chart_download.pdf
- https://cdn.shopify.com/s/files/1/0464/8678/2104/files/lalojikewobubujola.pdf
- https://cdn.shopify.com/s/files/1/0434/1750/1852/files/8000942269.pdf
- https://cdn.shopify.com/s/files/1/0431/1416/8487/files/92183942646.pdf
- https://static.usrfiles.com/ugd/b8c837_b458b3bc71f041ed8de160528ca3fe6f.pdf
- https://static.usrfiles.com/ugd/a0905b_5940c20d7fc847cc86e7b2558473a515.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_off00006b2a.bin46db712d7b932e4033de61afab09d8b7eb9edead0c45fbb6bec61d0cfea896ca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B2A | 5504 bytes |
font_01_sfnt_off00007dc7.bind37ced7caec0cc2f364a8182351c0a5f8eef8a4cc2fc7949e999a8fec3cd2620 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7DC7 | 15476 bytes |
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