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 CMS upload directories or are part of a link farm. The presence of a 'Password-protected archive lure' heuristic suggests the document is designed to trick users into providing passwords or downloading password-protected archives, which often contain malware. ClamAV also detected this file as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 8
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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=falling+up+by+shel+silverstein+pdf
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/16108925be6d37---vakajitavafoxokikumoferi.pdf
- http://xn--b1akwe.xn--p1ai/userfiles/file/86029195020.pdf
- http://agcslohian.com/userfiles/file/jolijedoxidesosewotizawon.pdf
- https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/2ef4d85ff3f1d3f458abf8e6dd54f54d/vuwun.pdf
- https://www.travelknowhowscotland.co.uk/assets/js/ckfinder/userfiles/files/27788236530.pdf
- http://fermobkorea.com/userfiles/file/20210801145842.pdf
- https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/83fpjtf6m0jubjcpcirpts407b/pegunefemivegux.pdf
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606da187d8925---wedavelibavusozag.pdf
- http://tdbakademi.org/userfiles/files/rowasekatavot.pdf
- http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3fc9be5994---78378451736.pdf
- http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160807ce497376---misegonunev.pdf
- https://cosplay-expo.it/ckfinder/userfiles/files/topubav.pdf
- https://engineeredrepinc.com/wp-content/plugins/super-forms/uploads/php/files/7384f98b9dc0407172d26e159d178e00/58475913456.pdf
- http://zimaletto.com/uploads/file/75376009111.pdf
- http://cukierniabrzezinski.pl/www/artizam/fck/file/16689980818.pdf
- https://afra24.com/basefile/afra24/files/xidevasuret.pdf
- http://thesecurityguardunion.ca/userfiles/files/gujedadujipo.pdf
- http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609d200e38e43---3308928555.pdf
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/529f2593a989a7295fa356df5521bb72/2544353226.pdf
- http://www.multigacos.com/admin/uploaded/fck/file/dosafixifevegazafemovuse.pdf
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d707638ed70---kapinikezigupigan.pdf
- https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/b22471abb139688fec128e1892d0c321/lulonegugofi.pdf
- https://ols.lighting/wp-content/plugins/super-forms/uploads/php/files/f3f4088a2fdd62ad5ee32d6a1e02b0cc/96028045443.pdf
- https://www.naabelectric.com/userfiles/files/jiwonumomufexoxibebonu.pdf
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/kjv9tbtlf08eg45jpqhhi03rjg/kexukemeduxutisanipemox.pdf
- http://nationalcoopadvisors.com/userfiles/files/zasekesulufagapij.pdf
- 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_off0000d2aa.bin5665c698ba4dd89ef1418f274130449e1b9bc4683e74daa32163615d12e54b53 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2AA | 17008 bytes |
font_01_sfnt_off0000fdfb.bin69cfed73e06f0d34514e89b8aced34f97dbbf1f4750169592dfcb4712bc972a4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDFB | 11056 bytes |
font_02_sfnt_off0001173c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1173C | 16792 bytes |
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