MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links, one of which, 'https://ttraff.ru/wix?keyword=resumo+de+quimica+ensino+medio+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, appears to contain this URL and other benign-looking PDF links, suggesting a link farm or SEO poisoning tactic. The presence of a malicious redirector indicates an attempt to lead the user to a harmful destination, likely for further exploitation or credential harvesting.
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=resumo+de+quimica+ensino+medio+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_e224d62e4625486586df7525c34f32e9.pdf
- https://static.usrfiles.com/ugd/b8c837_04d372d4222e41629291238f91e34fef.pdf
- https://static.usrfiles.com/ugd/b8c837_db4d21784f024377b6338dbf6a7ed39a.pdf
- https://cdn.shopify.com/s/files/1/0434/8218/5893/files/concept_map_template_word_document.pdf
- https://cdn.shopify.com/s/files/1/0435/2478/4283/files/ups_store_valdosta_ga.pdf
- https://cdn.shopify.com/s/files/1/0429/5920/8604/files/53789283273.pdf
- https://cdn.shopify.com/s/files/1/0434/5564/3813/files/wamuxamox.pdf
- https://cdn.shopify.com/s/files/1/0430/0131/5491/files/letter_s_template_free.pdf
- https://cdn.shopify.com/s/files/1/0433/4914/7816/files/white_pages_arlington_tx.pdf
- https://cdn.shopify.com/s/files/1/0434/2831/5288/files/74443881002.pdf
- https://cdn.shopify.com/s/files/1/0432/5651/2676/files/56103968483.pdf
- https://cdn.shopify.com/s/files/1/0434/6124/7138/files/kogid.pdf
- https://static.usrfiles.com/ugd/b8c837_9f8b9d94ec0b4a0fae69286722a40717.pdf
- https://static.usrfiles.com/ugd/b8c837_8acef36893594428a8ad566ecad2be34.pdf
- https://static.usrfiles.com/ugd/b8c837_f0ea56c7aa4146cd89f05fe9798ac2d0.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_off00006508.bin2840c8c378dde7435d9dbb9daaa1c1ee5b0943c20408e5816926f27e12ffce89 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6508 | 5308 bytes |
font_01_sfnt_off00007709.bincaf779e06c228fbf609e237976f83734577f31b8daf4b00790681bcba7c20dbf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7709 | 11348 bytes |
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