MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to disposable domains and are part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution through a link farm. The embedded JavaScript is likely used to obfuscate the malicious links or perform further actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9946
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 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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 http://ural-resyrs.ru/data/file/87011619314.pdf In PDF document text
- https://szamitogep-szerviz-javitas.hu/ckfinder/userfiles/files/sadifizedukuselenuf.pdfIn PDF document text
- https://saatyapi.com/upload/ckfinder/files/buramubumejedakari.pdfIn PDF document text
- http://titibbs.xyz/js/ckfinder/userfiles/files/4095692647.pdfIn PDF document text
- http://grafitym.kz/files/file/bitemiferibasedu.pdfIn PDF document text
- http://countryclaim.cz/userfiles/file/97878813009.pdfIn PDF document text
- https://cafepiolho.com/uploads/assets/27255982898.pdfIn PDF document text
- https://www.osteopathe-montpellier-sud.fr/ckfinder/userfiles/files/fapirikuxonarejoranoxor.pdfIn PDF document text
- http://dalnoboy.org/data/filestorage/upload/files/57072475908.pdfIn PDF document text
- http://fli.edu.mn/ckfinder/userfiles/files/39161143282.pdfIn PDF document text
- http://photo-preiss.com/upload_files/files/pigamukodojew.pdfIn PDF document text
- http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ffff02beb8---ravav.pdfIn PDF document text
- http://balaton.varosom.hu/userfiles/files/zomobasevul.pdfIn PDF document text
- https://bompentax.com/quangbasanpham/app/webroot/upload/image/files/libomifug.pdfIn PDF document text
- https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/89defa77b01c4648417552cb28bd4452/fiwebisapozukema.pdfIn PDF document text
- http://neoneophytou.com/ckfinder/userfiles/files/gibofiwolisomasika.pdfIn PDF document text
- https://taiwancy.com/app/webroot/userfiles/files/lefixefibevisokozali.pdfIn PDF document text
- http://preiswerte-unterkunft-papenburg.de/mediapool/gapipewotozetanepezeve.pdfIn PDF document text
- http://merrygoldholidays.com/ckfinder/userfiles/files/85392493697.pdfIn PDF document text
- http://dinskayarealty.ru/media/file/demunezalik.pdfIn PDF document text
- http://needychild.org/ckfinder/userfiles/files/14282921468.pdfIn PDF document text
- https://hopadive.cz/ckfinder/userfiles/files/80227110417.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=basic+japanese+kanji+volume+1+pdfPDF link annotation
- 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d301.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD301 | 20032 bytes |
SHA-256: c2a66f793fd03832e53a04bbb8b3836756338b4666e8f182edc66e940c249aab |
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font_01_sfnt_off00010647.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10647 | 16060 bytes |
SHA-256: 64af0185a2beffa7382febdf957b2ddd2015d3985e5bc97cf8ad64f3c2914973 |
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font_02_sfnt_off00011b5c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B5C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_03_sfnt_off00013373.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13373 | 11076 bytes |
SHA-256: aec6e280db1019bdf7f2b634f788a2925916d8d62ab3889b02f689c51e4da3a3 |
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