MALICIOUS
204
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 compromised WordPress sites or disposable hosting, suggesting a link farm or redirection scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
Heuristics 8
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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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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=pokemon+ruby+online+randomizer
- http://drivescuolaguida.it/userfiles/files/buzukowonuxawalofunejaji.pdf
- http://ikuma-car.com/js/upload/files/88921415699.pdf
- https://bibliotheque-des-arts.ch/ckfinder/userfiles/files/xewakuborekadop.pdf
- http://techscreening.com/userfiles/files/18893483759.pdf
- http://magogaralbamoble.com/galeria/files/kilekanojuribepokoxem.pdf
- http://www.abitacolointerni.it/newsletter/file/nifabakerupebebimuxap.pdf
- http://bebsulmare.com/userfiles/files/rikagitedozozuvujasenur.pdf
- http://asijskepotraviny.cz/files/file/xoboposelupubiz.pdf
- http://fitsiluet.cz/data/file/jovilur.pdf
- https://skillmapmagazine.com/ckfinder/userfiles/files/92997132214.pdf
- http://studioferrato.it/userfiles/files/66010738323.pdf
- http://gruppocreta.com/userfiles/files/gigadenivelovo.pdf
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/16141fa4f760c1---jaxig.pdf
- https://cs-nippon-cp.com/mailmagazine/upload/files/divozurifuxedobudo.pdf
- https://sunarchegypt.com/userfiles/file/10243970836.pdf
- https://bistakalikotenetwork.com/userfiles/file/93461080600.pdf
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138195c7e499---jumakudoroboxipixowevob.pdf
- http://newabel.com/ckfinder/userfiles/files/nodip.pdf
- https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/bu1pjqkijnlrse22jbdcmdj1di/bitaki.pdf
- http://amandatour.ru/js/ckfinder/userfiles/files/58296141219.pdf
- http://www.hgbehringer.de/img/files/files/duxuwutiwinutudebig.pdf
- http://bubb.cn/up_file/file/23186482488.pdf
- http://amandatour.ru/js/ckfinder/userfile
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b3c7.bin7add9300d79fde4fd420cf65c449a3858aae72dfb32326a0cd5647f665c6c1ac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3C7 | 10648 bytes |
font_01_sfnt_off0000cc1f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC1F | 16792 bytes |
font_02_sfnt_off0000e431.bin047c31d8cd10c8f45bbe95dd6eba897a3dc8970877c702465a5a9d2413d089ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE431 | 17704 bytes |
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