MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which are linked to disposable hosting and appear to be part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for obfuscating malicious actions within PDF documents.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 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 https://cructi.ru/uplcv?utm_term=minecraft+dungeons+free+to+play PDF link annotation
- http://taiwanquinoafamily.com/shopadmin/upload/files/16458972664.pdfIn PDF document text
- http://www.findvoters.com/userfiles/file/munebufunexutul.pdfIn PDF document text
- http://evolutionchonburi.com/userfiles/files/sifekijijazarenegizulo.pdfIn PDF document text
- http://pelejas.com/IMAGENS/CKFINDER/files/nokuxaxusaxirogip.pdfIn PDF document text
- http://cetis156.neutronds.com/assets/js/ckfinder/userfiles/files/95784433381.pdfIn PDF document text
- http://houselandia.ru/files/30143678001.pdfIn PDF document text
- https://ataru.site/js/ckfinder/userfiles/files/6690352159.pdfIn PDF document text
- http://karimeh.com/public/userfiles/file/molavivezadisetixinepevud.pdfIn PDF document text
- https://madspot.dk/ckfinder/userfiles/files/15795405092.pdfIn PDF document text
- http://ljsmelt.com/upload/files/wokufigav.pdfIn PDF document text
- http://3e3i.com/UserFiles/file///52286980205.pdfIn PDF document text
- https://scavilecis.it/userfiles/file/bewojomekelalij.pdfIn PDF document text
- http://sicilyontable.it/userfiles/files/dofijakevazuxar.pdfIn PDF document text
- http://zae.me/datafiles/file/14872393412.pdfIn PDF document text
- https://rkdestate.com/userfiles/file/53161683462.pdfIn PDF document text
- http://vuoncotichdep.com/upload/files/wovutipefenetolusaxonitup.pdfIn PDF document text
- https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/5b3e9e85dbd49ba8528522b6e5414164/nupesadomalunanufomu.pdfIn PDF document text
- http://sergeybazarov.ru/file/65693648617.pdfIn PDF document text
- http://paradisetourkorea.com/FileData/ckfinder/files/20210901_FB0B5C8A6153D3C2.pdfIn PDF document text
- https://lotusmarinevn.com/upload/files/fapog.pdfIn PDF document text
- http://teamwork-poetschke.com/ckfinder/userfiles/files/fizopukuk.pdfIn PDF document text
- https://speedwayinfo.hu/uploads/file/sezusezowoxilejamovijila.pdfIn PDF document text
- http://studioguatta.it/userfiles/files/65564291378.pdfIn PDF document text
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1612fab172a22b---wogixizeb.pdfIn PDF document text
- https://kingyao.com/uploadfiles/files/20210903_201657_8304.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_off0000ef97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF97 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000107a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107A9 | 18172 bytes |
SHA-256: ee6ef17b80608da58cd79772c4e39f9d1c92575f402df90a73ace7f81775341f |
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font_02_sfnt_off00013741.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13741 | 11000 bytes |
SHA-256: a591c30fc7bef3bddd54b959fb1da628fca36ee8e86f402a7de104684de64e42 |
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