MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for delivering malicious payloads. The PDF also functions as a link farm, directing users to multiple URLs hosted on compromised websites, likely for phishing or further malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9904
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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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://huntic.ru/uplcv?utm_term=may+2019+us+sat+answer+explanations
- http://agiusfuneraldirectors.com/files/file/tadogasoximonexuminepu.pdf
- https://mziagroup.com/wp-content/plugins/super-forms/uploads/php/files/nk4inf1ssh2of35p0pcl6kf4ri/40614701279.pdf
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160744cb702226---18978513784.pdf
- http://mqskin.com/luutru/files/4668037733.pdf
- http://wecans.net/_UploadFile/Images/file/luxigugenoxow.pdf
- http://poorclarescork.ie/images/zozoxogabanelepogeku.pdf
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/cgomi1v6ah08sen30m4bl5ebq0/18779083273.pdf
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c6j4375ogbr2786vocjro1s9g2/veputetuwotedun.pdf
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16099b35584b1c---23479405960.pdf
- http://grandrosso.com/js/upload/files/19202446772.pdf
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/16077a6b0da5a0---pajufokanupoviz.pdf
- http://mebell-city.ru/ckfinder/userfiles/files/wuterorefuwifunexila.pdf
- https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160b879e662e11---vavobikawaluvuverawuwuz.pdf
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606cce246ce2c---82124402574.pdf
- https://asset-books.com/userfiles/file/texulusadokobul.pdf
- http://deborahkay.com/ckfinder/userfiles/files/savevas.pdf
- http://savaksangida.com/resimler/files/46990919573.pdf
- http://humanitool.ru/userfiles/file/57030419621.pdf
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160c668d5d4e6a---tasubutowojidaf.pdf
- https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/13832341154d84ff1b7f1f56ac19b0a7/sufibejuvamojawow.pdf
- https://zanhotel.ro/beficientconsultingFiles/file/mazuxejonafupukalitug.pdf
- https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/f0e9e05ba9ebe4ad7f138bd35bebe4b3/42305336374.pdf
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f41cc791cf---16579876426.pdf
- https://felix-schulze.biz/wp-content/plugins/super-forms/uploads/php/files/5lmlg63vr5p2cirvct7np4ih5v/93639379681.pdf
- http://konditsionery-reutov.ru/upload_picture/file/lijowewagawixotur.pdf
- http://grupophi.es/uploads/files/18014060518.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- https://collegereadiness.collegeboard.org/sat/practice/full-length-practice-tests���Practice
- 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_off000180cb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x180CB | 16792 bytes |
font_01_sfnt_off000198e2.binf41fa2e401cface6256dadc81e9d83c031e16ee5d3e31ccfdbddfc191b01cf57 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x198E2 | 11100 bytes |
font_02_sfnt_off0001b31d.bine389ec3e7b16db294dafe3935aa5562f6ea7a34899715110ae7b489f97e8db67 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B31D | 17024 bytes |
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