MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a large number of embedded links, many of which point to disposable hosting or known redirector infrastructure. The primary URL, https://cctraff.ru/strik?keyword=ejercicios+de+costos+y+presupuestos+resueltos, is flagged as a malicious redirector. This indicates the document is likely intended to lure users to malicious sites, potentially for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://cctraff.ru/strik?keyword=ejercicios+de+costos+y+presupuestos+resueltos In PDF document text
- https://cdn-cms.f-static.net/uploads/4365602/normal_5f876aec130d9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366047/normal_5f871ed106ce2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366015/normal_5f8a33d7e13e3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377902/normal_5f8a641997ae9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366005/normal_5f8711beb747e.pdfIn PDF document text
- https://gusumadanu.weebly.com/uploads/1/3/2/6/132695601/womanawiwurek_dipewububexuti_tudanado.pdfIn PDF document text
- https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/2a5b38eef3430.pdfIn PDF document text
- https://juragubiv.weebly.com/uploads/1/3/0/8/130874328/8317469.pdfIn PDF document text
- https://besiwalufeg.weebly.com/uploads/1/3/2/6/132696214/cb8148.pdfIn PDF document text
- https://wuvirinofibugiz.weebly.com/uploads/1/3/1/0/131070402/wesuxixoku_lumer_koruxesubiv_xikubute.pdfIn PDF document text
- https://vibebivenef.weebly.com/uploads/1/3/1/4/131412032/23dcc5ae3a6204.pdfIn PDF document text
- https://tenagudewujuga.weebly.com/uploads/1/3/1/1/131164273/redowaburax.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0480/9768/9763/files/manvel_high_school_rating.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5429/1354/files/truyn_ngi_ln_wattpad.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/585193a0-64d6-4711-a4dd-fb0948ddffb8/25094300796.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0b5d98d7-c44d-4331-812d-494d4aa1a687/88899478062.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ee39a997-cf67-4053-9bf6-310710914739/divumefoziwapaw.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a7fcadea-4a8d-42ea-a509-a076c196be26/96610830912.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0476/9493/8271/files/angle_angle_similarity_theorem_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4913/8846/files/pressure_vessel_design_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0494/0650/9212/files/pexofujifomopaduwif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0497/4936/0793/files/iron_man_3_game_apk_file_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0496/7451/8691/files/zowefa.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004c29.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4C29 | 4992 bytes |
SHA-256: c25afd828cdbc583f16c0f3f70325c6bfc7cb9fef8e157ff147f1f473465ecd2 |
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font_01_sfnt_off00005d43.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D43 | 9268 bytes |
SHA-256: f86d12910ed99f7a89efe358c9b71e9079eaa5c36b9dccb56d617ccab6285e4d |
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