Malware Insights
This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of external links, many pointing to disposable domains, suggesting a link farm or SEO manipulation tactic. The document body, though heavily obfuscated, contains references to 'writing prompts' and the authoring application 'wkhtmltopdf', indicating a potential lure to disguise malicious intent. The presence of embedded URLs further supports the attack pattern of redirecting users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://dugedepap.ru/award?keyword=writing+prompts+high+school+pdf PDF link annotation
- http://beririka.scienceontheweb.net/what_is_leave_travel_allowance_in_salary.pdfIn PDF document text
- http://gazizelasama.getenjoyment.net/go_tell_it_on_the_mountain_chords_in_g.pdfIn PDF document text
- http://dokukuke.mypressonline.com/36973941357.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://d5fb4b5d-766d-4e54-ab1c-ecc61d2b7d82.filesusr.com/ugd/b0c8dc_911d910204b04b058e716accbd575102.pdf?index=trueIn PDF document text
- https://48e6b720-b653-4920-beb0-7ef171ab6ab9.filesusr.com/ugd/d9d1f5_3259a4874bb24f3581f362400a57f59c.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/buwosevax/vadasejevejomegepotaxa.pdfIn PDF document text
- https://e809654a-a95b-4dbc-a338-24085255a2f8.filesusr.com/ugd/1b6cec_8efd165a2ed14aa0bbf9599cf2052c7f.pdf?index=trueIn PDF document text
- https://01c19f78-c7d0-441a-b56a-8672493f87de.filesusr.com/ugd/9d66c7_27f0eece0c94404cb1d39a5f22136ea4.pdf?index=trueIn PDF document text
- https://238a82c5-85a8-4641-a991-2f0f5270ddc4.filesusr.com/ugd/63f22d_c8e31806a6064b47aa0a1f8b15c6d3bb.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/2e00127d-ea5b-42e2-a904-6436daf31489/46408970283.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3de70121-0ff7-42f1-89b8-699124a462f1/gorevudam.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9f36bd63-a511-46c4-b121-c6ca67c65dfb/how_to_wear_a_bed_sheet_as_a_toga.pdfIn PDF document text
- https://4db61c00-1078-4917-8a1c-a2c1480eb6e0.filesusr.com/ugd/c94206_b00bc9a8f16140dc8ba39472a49b1030.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/af8b9473-9a71-4533-a8bc-05fb0b0105e3/30784299117.pdfIn PDF document text
- https://s3.amazonaws.com/zizene/fiduxivuluwedigev.pdfIn PDF document text
- https://s3.amazonaws.com/norozovijalu/31925113804.pdfIn PDF document text
- https://s3.amazonaws.com/dudurat/luna_lunera_cascabelera_ojos_azules_letra.pdfIn PDF document text
- https://3e3188f7-d9e9-48da-9af6-4e6760718ee0.filesusr.com/ugd/4f7562_b5823ac686c847e09b0ab734910c998b.pdf?index=trueIn PDF document text
- https://d6d3a1c5-32ce-46e9-ae92-c5b8d84d65d9.filesusr.com/ugd/a3b54b_035ec08dbee5470bb842fd2d28613034.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/6c98d271-0136-4926-8588-6f4a027070c1/famous_samuel_beckett_quotes.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1a6d7834-0cd0-44e1-8c88-60f8898e1f4e/trials_of_apollo_series_paperback.pdfIn PDF document text
- https://s3.amazonaws.com/jizubisetebof/discourse_on_the_origin_of_inequality_sparknotes.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/17debb35-2d9b-4123-a3cc-96496d41eed5/boximizefav.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_off00010d69.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D69 | 5372 bytes |
SHA-256: d50c047f72d66c64d7797dfcb4f4872997f60ebea1327a1a57569c4ec998f99a |
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font_01_sfnt_off00011f9a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F9A | 10816 bytes |
SHA-256: b5f32540a7a00f11fba28a7e20927aaf06c7dd39528e765067eec636badc73cb |
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