MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external URIs, with a significant number pointing to disposable hosting and acting as a link farm. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using multiple distinct hosts with single links, often employing UTM parameters, which is common in phishing campaigns to obscure the final destination and evade detection. No scripts were extracted, but the presence of numerous external links suggests the primary intent is to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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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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://coretry.ru/uplcv?utm_term=kali+linux+apk+2020 PDF link annotation
- http://asja-doll.ru/userfiles/file/36558012626.pdfIn PDF document text
- http://www.syrahresources.com.au/application/third_party/ckfinder/userfiles/files/17590980204.pdfIn PDF document text
- http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613d7c3226a5a---nizibami.pdfIn PDF document text
- https://balajitutorial.com/admin/userfiles/file/gomug.pdfIn PDF document text
- http://www.hz-kontejnery.cz/ckfinder/userfiles/files/kesituwekejakajevavexaba.pdfIn PDF document text
- http://okmarin.ru/userfiles/file/lobagelugajunonekoselo.pdfIn PDF document text
- https://myshalewell.com/userfiles/file/jogidagikidirolarufuwaf.pdfIn PDF document text
- https://kmkmekanik.com/upload/ckfinder/files/gobubibopelelirivibade.pdfIn PDF document text
- http://radiosalsa.fr/php/rs/filesupload/file/fisokadinobe.pdfIn PDF document text
- https://ctyhoanongangiang.com/userfiles/file/zoxarobuguwemonujepu.pdfIn PDF document text
- http://metzlerranch.com/userimages/nujafotijejudezezigutuviz.pdfIn PDF document text
- https://gegeny.hu/uploads/file/kimarupedejibatiju.pdfIn PDF document text
- https://hirurgija.me/files/zizukebinekipomoxosex.pdfIn PDF document text
- http://vitanova-cattery.com/upload/file/97399023843.pdfIn PDF document text
- http://graficaeformazione.it/userfiles/file/nizatipivopudobulopegesov.pdfIn PDF document text
- https://speedwayinfo.hu/uploads/file/dujinotigevadetalujava.pdfIn PDF document text
- http://chaodontuonglai.vn/uploads/ck_upload/files/jekatorufulelotisu.pdfIn PDF document text
- http://sinorarechem.com/upload/files/97347403154.pdfIn PDF document text
- http://www.supair-lux.hu/ckfinder/userfiles/files/23874693948.pdfIn PDF document text
- http://www.ocptecnology.com/admin/uploaded/fck/file/suxugurefibomebibevutofi.pdfIn PDF document text
- http://baove24h.org/upload/files/vivetikofibigokozuduvo.pdfIn PDF document text
- http://indianspringhomes.com/userfiles/files/niluvufosaweda.pdfIn PDF document text
- http://klgd.spokoino.ru/i/upload/files/93102877103.pdfIn PDF document text
- http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141b8ee49127---ruwapaba.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c697.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC697 | 18008 bytes |
SHA-256: edbaa5c03d50bbebe607801f47456df2c55fffc862ae9fb4167f6032e3d2a086 |
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font_01_sfnt_off0000f4cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4CB | 10152 bytes |
SHA-256: 3e2287a2d474c5df6dc46e21f2962f61aec6ef8749159be198d858c88654c13b |
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font_02_sfnt_off00010b8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B8A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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