MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple external URIs, including a link farm pointing to compromised WordPress upload storage. The primary lure appears to be a "free IQ test" redirecting to a phishing site, as indicated by the high-confidence heuristic PDF_SEO_UTM_REDIRECTOR_LINK. The ClamAV detection and ML classifier further support its malicious nature, likely serving as a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.6651
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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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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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://yoyep.co.za/XSRYdR1H?utm_term=free+iq+test+with+answers+and+score PDF link annotation
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/4af8ea4d1ff902a2152a18c09576a8db/pexodu.pdfIn PDF document text
- http://eurogalvano.com/admin/kcfinder/upload/files/jamojidubakurubug.pdfIn PDF document text
- https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/bdladk65chhcs38m6ee6l6g39s/fosegironiver.pdfIn PDF document text
- http://ya-ke.cn/admin/upload/2696550517.pdfIn PDF document text
- http://changwontour.kr/FileData/ckfinder/files/20210715_EA5BE1FC208BFB3A.pdfIn PDF document text
- https://www.ocnistudio.cz/ckfinder/userfiles/files/52641709757.pdfIn PDF document text
- http://tentauto23.ru/ckfinder/userfiles/files/zubusufoj.pdfIn PDF document text
- http://kenshopvn.com/uploads/files/totomofikafatadodemabapab.pdfIn PDF document text
- http://sake2metustin.com/uploads/files/mefemegepotuxupegawe.pdfIn PDF document text
- http://ariege.proximeo.com/ckfinder/userfiles/files/lolus.pdfIn PDF document text
- http://kbautotech.com/board/datafiles/imagefile/12915054698.pdfIn PDF document text
- http://banglenhospital.com/UserFiles/File/89228311060.pdfIn PDF document text
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618633a9aaaf8---39642776332.pdfIn PDF document text
- http://asliev.coco1490.com/upload/file_folder/file/sapanowu.pdfIn PDF document text
- https://dalilak1.com/userfiles/file/96044214943.pdfIn PDF document text
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160e6078a929bb---vuganovefozagusiditiweper.pdfIn PDF document text
- http://bundoreh.com/fckeditor/files/file/55173045951.pdfIn PDF document text
- https://curvy.tw/upload/files/45592725292.pdfIn PDF document text
- http://abhinavabhishad.org/userfiles/file/27124947275.pdfIn PDF document text
- http://kimandyoo.com/userfiles/file/1976921334.pdfIn PDF document text
- http://tizianaiberti.it/userfiles/files/vakonawasifutibufimakam.pdfIn PDF document text
- https://rozetki.moscow/kcfinder/upload/files/jusaz.pdfIn PDF document text
- http://kastely-vacduka.hu/fileok/file/48219863476.pdfIn PDF document text
- http://joesservicecenternj.com/userfiles/files/bumobedame.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619520093cceb---pomaxoser.pdfIn PDF document text
- http://lavender-farm.ro/app/webroot/js/kcfinder/upload/files/46830332104.pdfIn PDF document text
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/49aed8740178d6e415aca177baa6f72d/rujoliposob.pdfIn PDF document text
- https://chsins.tw/uploads/files/202108301204561279.pdfIn PDF document text
- http://shriadinathbank.com/uploads/84005293771.pdfIn PDF document text
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a675596b3fb---90394979190.pdfIn PDF document text
- http://connectcontrol.net/files/userfiles/files/pofusujubadapagejopovifu.pdfIn PDF document text
- https://wipaphun.com/UserFiles/File/3590446771.pdfIn PDF document text
- https://ctapigroup3.com/contents/files/81422126642.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000459f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x459F0 | 19036 bytes |
SHA-256: 0a49233ebce6b34719b8c14b436169989b934d343946ed6d91f5d27106bff78f |
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font_01_sfnt_off00048b7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x48B7C | 10632 bytes |
SHA-256: db4c2443ae35989e09a72c2ce72a4ece8f6da2ac92227210551b8f8098042a33 |
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font_02_sfnt_off0004a394.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4A394 | 16336 bytes |
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa |
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font_03_sfnt_off0004b996.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4B996 | 16560 bytes |
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9 |
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