MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV, for being malicious and a phishing/trojan. The presence of embedded JavaScript and numerous external URIs suggests an attempt to download further malicious content or redirect the user to a phishing site. The 'SE_CALLBACK_LURE' heuristic specifically indicates a callback phishing or tech-support scam pattern, where the user is prompted to call a number.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 7
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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 https://oniceh.ru/uplcv?utm_term=how+to+turn+my+tablet+into+a+phone PDF link annotation
- https://ptkas.com/kingkong/userfiles/files/fadujinosuwavibineruxuwa.pdfIn PDF document text
- https://npkfertilizerproduction.com/d/files/69277789827.pdfIn PDF document text
- http://energy-labels.nl/userfiles/file/95160877712.pdfIn PDF document text
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/528053a86171418dda726d876b663904/19288270456.pdfIn PDF document text
- http://gazduire-domeniu.com/UserFiles/file/zapebikevaxeka.pdfIn PDF document text
- http://trendstyleimage.com/uploads/ckfinder/userfiles/files/45278451266.pdfIn PDF document text
- http://silesiacapital.eu/data/file/58478090589.pdfIn PDF document text
- https://lotteppta.com/beta/assets/file/bojovetuz.pdfIn PDF document text
- http://nbmounts.com/userfiles/file/1631528933.pdfIn PDF document text
- http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131c51ac008d---54544020149.pdfIn PDF document text
- https://ms01bet.com/contents/files/11209720798.pdfIn PDF document text
- http://duef.ru/public/file/2010781383.pdfIn PDF document text
- http://www.corazondelsol.es/ckfinder/userfiles/files/bugigaverivizekis.pdfIn PDF document text
- http://casms.org/atts/news-files/file/kokolakumufedepegitaputoj.pdfIn PDF document text
- http://studio-orlandini.com/userfiles/files/44014787847.pdfIn PDF document text
- http://odpadykj.cz/UserFiles/File/82545563816.pdfIn PDF document text
- http://helder-effect.nl/userfiles/file/depewedemod.pdfIn PDF document text
- http://rayocazar.com/images/elfinder-1.1/files/file/venaputomemujiv.pdfIn PDF document text
- https://newshieldinsurance.com/demo/gsa/final/images/file/91881904854.pdfIn PDF document text
- http://qtjdb.com/UploadFile/2021/09/08/file/20210908_182513_140.pdfIn PDF document text
- http://coinproject.com/userfiles/image/file/72239982346.pdfIn PDF document text
- http://sun-marche.com/app/webroot/js/ckfinder/userfiles/files/38749951250.pdfIn PDF document text
- http://fortwashington.abwingsmd.com/uploads/files/23525009333.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_off0000e93c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE93C | 10780 bytes |
SHA-256: 023e9c36741f57728de2382c8ac7adae7d247a04ceb7bb7afa750e9becd1bd53 |
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font_01_sfnt_off000101a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101A7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000119b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119B9 | 17600 bytes |
SHA-256: 0031b8c2b3ed4e4dabe9c0509e2d41f7de462df9e068350540f76e21d4cc2296 |
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