MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with critical heuristics identifying it as a malicious redirector and a link farm hosted on disposable infrastructure. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded links, such as https://yafferge.ru/123?utm_term=dropping+acid+the+reflux+diet+cookbook+%2526+cure+pdf, are likely used to direct users to phishing sites or download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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 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://yafferge.ru/123?utm_term=dropping+acid+the+reflux+diet+cookbook+%2526+cure+pdf In PDF document text
- http://vinorama.fun/balay_ts_50100_caracteristicasys8cc.pdfIn PDF document text
- https://cdn.sqhk.co/nimawabej/iGkhgA4/duck_hunting_waders_on_sale.pdfIn PDF document text
- http://goods-amzon.com/326465035050g3tz.pdfIn PDF document text
- http://nely.xyz/4644266873vbpug.pdfIn PDF document text
- https://cdn.sqhk.co/kekelivig/Ngchgia/us_forest_service_parks.pdfIn PDF document text
- https://cdn.sqhk.co/pabopimi/Lgfjggd/downy_wrinkle_spray_walmart.pdfIn PDF document text
- https://cdn.sqhk.co/genamudazunu/aahhgdL/enyo_pro_stationary_bike.pdfIn PDF document text
- https://cdn.sqhk.co/goronikel/VWgcB0h/netflix_series_dark_cast.pdfIn PDF document text
- https://cdn.sqhk.co/dewavasese/a5reNia/minecraft_pocket_edition_pc_apkpure.pdfIn PDF document text
- http://henrysavbr.site/barrister_bookcase_plans3owr4.pdfIn PDF document text
- http://iglivesupportteam.com/trials_of_apollo_book_4_free_epub_download84cho.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
- http://xujogefup.rf.gd/baking_sheet_paper_near_me.pdfIn PDF document text
- http://dizakopalelur.epizy.com/77172410142.pdfIn PDF document text
- http://sikirubuguje.epizy.com/kumeverironaniwobalosik.pdfIn PDF document text
- http://kadowuf.epizy.com/avatar_maker_anime_girl_apk.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e213.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE213 | 5392 bytes |
SHA-256: 63aab2e78852ce7e5ead7b0d3370765c4fc45fa4629e44bf154e7723e1159bf1 |
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font_01_sfnt_off0000f45f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF45F | 10616 bytes |
SHA-256: 3203b579b2c48c591aa092ad10d7eb93efa08cb6fdad257064a0309dc757f41c |
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font_02_sfnt_off00011897.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11897 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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