MALICIOUS
192
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded URLs, many of which point to disposable hosting and appear to be part of a link farm. One URL, 'https://cctraff.ru/strik?keyword=a+practical+introduction+to+python+3+pdf', is identified as a known malicious redirector. The presence of a 'download button' lure further suggests a malicious intent to redirect users to harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=a+practical+introduction+to+python+3+pdf In PDF document text
- http://puzesowo.kruoutdoors.com/uploads/1/3/0/7/130776078/zujika.pdfIn PDF document text
- http://nobani.unitedchurchofhuntington.com/uploads/1/3/0/8/130813821/lelofi-vilenokolo.pdfIn PDF document text
- http://files.breckenridgecoloradocondo.com/uploads/1/3/1/3/131380600/8b8307.pdfIn PDF document text
- http://fatelagu.mmevanneste.com/uploads/1/3/1/1/131163953/1dfe6c4ec.pdfIn PDF document text
- http://jobuvekob.biotechorthoticsandbraces.com/uploads/1/3/1/4/131410090/giroki.pdfIn PDF document text
- https://site-1036696.mozfiles.com/files/1036696/11911362854.pdfIn PDF document text
- https://site-1041289.mozfiles.com/files/1041289/88349373471.pdfIn PDF document text
- https://site-1038526.mozfiles.com/files/1038526/kokeje.pdfIn PDF document text
- https://site-1036735.mozfiles.com/files/1036735/46676558353.pdfIn PDF document text
- https://site-1038898.mozfiles.com/files/1038898/80325816788.pdfIn PDF document text
- https://site-1039778.mozfiles.com/files/1039778/salamude.pdfIn PDF document text
- https://site-1036796.mozfiles.com/files/1036796/vijibusupegagupo.pdfIn PDF document text
- https://site-1044453.mozfiles.com/files/1044453/bonuzagarit.pdfIn PDF document text
- https://site-1039952.mozfiles.com/files/1039952/dufemiwu.pdfIn PDF document text
- https://site-1043829.mozfiles.com/files/1043829/xegavoxafuzoderegebu.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/1/0429/3171/6262/files/revofazurimonewamijul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0501/1754/2038/files/bobowusolupagiza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2471/7723/files/sally_beauty_employee_handbook.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5656/9249/files/panamax_m5300-pm_review.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0486/4799/5560/files/sue_judge_facebook.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_off000090e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x90E7 | 5320 bytes |
SHA-256: d9de22236b42a4b78ad25c3770b476820adf34e1a8ea5239b7be2d6c252f7f53 |
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font_01_sfnt_off0000a305.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA305 | 10652 bytes |
SHA-256: 017b5111469c4a124417c75fb091b7cb3ae72c2f7b4b2ded69ebde80d1ced669 |
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