MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URLs, many of which are part of a link farm hosted on disposable domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to phishing or malware download sites. The embedded JavaScript is a common technique for executing malicious code within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 https://chcial.ru/uplcv?utm_term=among+us+apk+free+download PDF link annotation
- http://eventclub.pl/userfiles/file/42526373970.pdfIn PDF document text
- http://ulleungroadtour.com/FileData/ckfinder/files/20210904_B4B0D36B196DAF2A.pdfIn PDF document text
- http://kccmaul.com/files/files/zufajawo.pdfIn PDF document text
- http://ccforum.kr/uploads/file/1631037863.pdfIn PDF document text
- https://fizjolech.pl/userfiles/file/parujerubafaroka.pdfIn PDF document text
- http://stadtbild-intervention.de/Quansis/ckfinder/userfiles/files/xibikumexenobinowekuze.pdfIn PDF document text
- http://pensjonatagat.pl/userfiles/file/gawatapuren.pdfIn PDF document text
- https://nepalonlineexam.tisaracademy.com/userfiles/files/fesuvepokaliso.pdfIn PDF document text
- http://dachastyle.com/userfiles/file/gupoziponowunokawaxoz.pdfIn PDF document text
- https://www.shamshabaddiocese.org/files/js/ckfinder/userfiles/files/gesutobiba.pdfIn PDF document text
- https://bruceautoservice.com/files/file/48995368151.pdfIn PDF document text
- http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/16139ca7e91cf5---40109802474.pdfIn PDF document text
- https://jeneifogaszat.hu/cikkdata/files/87009495886.pdfIn PDF document text
- https://jasmijnbloemengroen.nl/userfiles/file/wotuminozanelikezup.pdfIn PDF document text
- http://wyadonline.com/userfiles/file/3816001400.pdfIn PDF document text
- http://www.ecvbrass.ch/user/web/file/gatimilapafokiri.pdfIn PDF document text
- http://hasanmasat.com/ckfinder/userfiles/files/losugatutenopokejuleju.pdfIn PDF document text
- http://bjdfszwy.com/filespath/files/20210908135552.pdfIn PDF document text
- https://faresaldabbous.com/uploads/files/fonekafaxoxajexixeved.pdfIn PDF document text
- http://legalinet.eu/userfiles/files/nebajifena.pdfIn PDF document text
- http://dbexpertise.fr/catalogue_dynamique/file/66768587886.pdfIn PDF document text
- https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/60t4slcd22q5358sefgfdjidee/21207151659.pdfIn PDF document text
- http://insfilings.com/skyzone_classic/upload/files/junata.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_off0000dc32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC32 | 18336 bytes |
SHA-256: 728e4396820fdbd112fef8cd274478789ec8091dc25a3b021feb260f1d01acda |
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font_01_sfnt_off00010bfa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BFA | 10912 bytes |
SHA-256: f170fa12b37705f4b4675c8da5cd5165d2af6f401b12eea1209fd485d7c914ed |
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font_02_sfnt_off0001252a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1252A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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