MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many hosted on disposable domains, characteristic of a link farm or SEO spam operation. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The embedded URL and the document body suggest a lure related to educational content to entice clicks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 6
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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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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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External URI info PDF_URIPDF contains an external URL action
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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://leonvi.ru/wix?keyword=wordly+wise+book+8+lesson+2+answers PDF link annotation
- http://sukutoxuwurif.mywebcommunity.org/dizaxu.pdfIn PDF document text
- http://jukojadijomefar.medianewsonline.com/autocad_3d_commands_and_their_uses.pdfIn PDF document text
- http://nonowun.mywebcommunity.org/animal_cell_bioreactor.pdfIn PDF document text
- http://saroforati.medianewsonline.com/behavior_chart_middle_school.pdfIn PDF document text
- http://bitoxifa.sportsontheweb.net/evan_moor_daily_science_grade_6.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://somizifiwij.epizy.com/foduladesagisirigawifadel.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d2820b04-c0d9-49fe-9bfe-7af217f6d11c/vivufurivinosutat.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/45fd63e9-c573-4ba5-9403-c328c8a41309/69576531393.pdfIn PDF document text
- http://xakarejosav.epizy.com/4237793263.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2255f20a-05ac-46b3-924f-8f7947c661d8/walmart_hours_today_christmas_eve.pdfIn PDF document text
- https://fad58b31-c538-4d3f-828d-7998eec853b9.filesusr.com/ugd/7e6083_bacfb2a8284d4ed78b0db2b748cb921c.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/ca9cde2d-6753-46ee-81fe-7e80080bcd28/65263053391.pdfIn PDF document text
- https://50b7e5d6-ab0e-41ff-bbcb-47d024e5c277.filesusr.com/ugd/45d8ab_5332a2b16ae244018c6fd3836870d747.pdf?index=trueIn PDF document text
- http://bepolujogox.atwebpages.com/anemias_en_pediatria.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5e51ed86-5935-495c-ad46-eac45bfd4b10/20870857109.pdfIn PDF document text
- http://zowadakal.epizy.com/clinical_pharmacy_ebook.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/756fccaf-fbd2-4f1e-9686-fba2e556e010/vajazilafeserega.pdfIn PDF document text
- https://ea7788ad-ef5a-48b5-911d-3ad522045378.filesusr.com/ugd/f3bfbb_87dee266ea7a425abe495873b95a96f9.pdf?index=trueIn PDF document text
- http://saragodofoli.epizy.com/36371073432.pdfIn PDF document text
- http://xobeminal.atwebpages.com/zotur.pdfIn PDF document text
- https://80172413-d145-4b71-b7cf-4a007d76ad29.filesusr.com/ugd/cacfd7_8453c03a513a450e8844b18d3c0466be.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/9e456131-d2fd-4b90-b6da-67cc552ff99c/4116133718.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4c3a6e28-7877-42f3-b1ad-ea0e0522b3ec/kezisuxisepurar.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1c2bec0f-ac35-4036-b6b9-2d0012bd76fc/sennheiser_rs-175_wireless_headphones_and_receiver.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_off0000d1a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1A1 | 5556 bytes |
SHA-256: 9ef3e0981b32514f7a8aea2bf73ecc5ffbd4762fd12909be9e4f660dc54438c1 |
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font_01_sfnt_off0000e4b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4B8 | 10160 bytes |
SHA-256: 17c9a21feae9f2cf0d2037b5662694f7b09c15122eb54959adfee1a7b252588a |
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