MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a significant number of embedded links, with 16 external PDF links identified, many hosted on Shopify. One of these links, `https://ttraff.ru/wix?keyword=ediciones+castillo+examenes+bimestrales`, is flagged as a known malicious redirector. The ML classifier also strongly indicated maliciousness. The presence of a link farm and a malicious redirector suggests an attempt to lure users to malicious infrastructure.
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/wix?keyword=ediciones+castillo+examenes+bimestrales
- https://cdn.shopify.com/s/files/1/0429/8145/8069/files/pukexekutatumefaxazipew.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tokisesuzarutaxiwiru.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dewefezagabujam.pdf
- https://cdn.shopify.com/s/files/1/0428/9059/2422/files/xevadixo.pdf
- https://cdn.shopify.com/s/files/1/0430/5335/1066/files/cascade_control_system.pdf
- https://cdn.shopify.com/s/files/1/0428/3914/6662/files/ragopa.pdf
- https://cdn.shopify.com/s/files/1/0432/3350/9535/files/bhojpuri_movie_bihar_masti._in.pdf
- https://cdn.shopify.com/s/files/1/0465/1099/7654/files/buddha_doodles_gratitude_journal.pdf
- https://cdn.shopify.com/s/files/1/0429/5698/0377/files/gajatilenupilulelopo.pdf
- https://static.usrfiles.com/ugd/2074c9_be72a193c98b4f188f38597e6e9cbdea.pdf
- https://static.usrfiles.com/ugd/4d400c_c6b0d006836a4ef49f13b040d3045231.pdf
- https://static.usrfiles.com/ugd/b8c837_6718665c2c244bb0a2cd4bbcf9101354.pdf
- https://static.usrfiles.com/ugd/d2cc1f_6fb982b7777a4daebd525019d56a29c0.pdf
- https://static.usrfiles.com/ugd/e33828_f667f581544a437eb82e04deb88770a9.pdf
- https://static.usrfiles.com/ugd/1cc7e8_d0afddd98afe44c08117e7fad2fed74a.pdf
- https://static.usrfiles.com/ugd/b8c837_3632ca7fdb0a49d7815eace3d6f9d49d.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_off00006221.bin89eb395c52ce11feccf5d776b845f3e8b5ef8149c2574a726a1beee5ff10503d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6221 | 5248 bytes |
font_01_sfnt_off000073de.bin9b80e5612aa7cfd36ae804256558b26d8c94619327439abb36b61e2a89f27eb3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73DE | 10872 bytes |
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