MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document functions as a link farm, directing users to numerous external PDF files hosted on various domains. The primary URL, https://cctraff.ru/strik?keyword=spencerian+script+lessons+pdf, suggests a lure to disguise the malicious intent as a search result. The ML classifier strongly indicated maliciousness, and the presence of multiple links to potentially disposable hosting reinforces the nature of a link farm designed for traffic redirection.
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=spencerian+script+lessons+pdf In PDF document text
- https://site-1036695.mozfiles.com/files/1036695/gamawizol.pdfIn PDF document text
- https://site-1040869.mozfiles.com/files/1040869/gumonurowad.pdfIn PDF document text
- https://site-1036743.mozfiles.com/files/1036743/janomodu.pdfIn PDF document text
- https://site-1036799.mozfiles.com/files/1036799/56953416651.pdfIn PDF document text
- http://memudavo.fruitforests.org/uploads/1/3/1/0/131070381/tasub.pdfIn PDF document text
- http://files.agelessfitness.us/uploads/1/3/2/8/132814136/xilulom-wominemos-latabatizub-bupebunoxe.pdfIn PDF document text
- http://pogediw.tamara-vasquez.com/uploads/1/3/0/7/130776089/3befbb40ebea59.pdfIn PDF document text
- http://files.emagboosters.com/uploads/1/3/1/4/131437977/7637129.pdfIn PDF document text
- http://zujitezo.maximumwaters.com/uploads/1/3/0/9/130969895/7655778.pdfIn PDF document text
- https://site-1036759.mozfiles.com/files/1036759/88432337788.pdfIn PDF document text
- https://site-1037829.mozfiles.com/files/1037829/dexijujekikaxuxipawe.pdfIn PDF document text
- https://site-1039695.mozfiles.com/files/1039695/fotokoxamefebokekudaku.pdfIn PDF document text
- https://site-1037854.mozfiles.com/files/1037854/finavajotime.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0434/4306/0901/files/malugiwagatogelibepuzuke.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0495/5504/6560/files/irrelevant_reason_fallacy_define.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5496/4637/files/hes_the_great_i_am_the_everlasting_father.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2406/4410/files/air_force_deliberate_development_plan_example.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000085e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x85E5 | 5040 bytes |
SHA-256: 9f3eff7f16fe0bbdd0ceb60ef3fb9b7c15cc77449ef16f6d8d691baae9fbb722 |
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font_01_sfnt_off000096f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x96F6 | 1800 bytes |
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0 |
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font_02_sfnt_off00009f84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9F84 | 14764 bytes |
SHA-256: 5be6cc8d32829062b21ea92b9567a5b45ca94b09ab2be68f703dac518833bed8 |
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font_03_sfnt_off0000cd9b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD9B | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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