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 exploiting PDF vulnerabilities or redirecting users to malicious sites. The PDF also contains numerous links pointing to compromised WordPress sites and other disposable hosting, indicating a link farm designed to obscure the ultimate destination. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/25b46c0b4ec837fc8b51179f536ba4ee/pilisobozirubunulivunesun.pdf In PDF document text
- http://bladensburg.abwingsmd.com/uploads/files/80136161538.pdfIn PDF document text
- http://clinicaveterinariagoitese.it/userfiles/files/86257506412.pdfIn PDF document text
- https://manpowernepal.net/ckfinder/userfiles/files/2152757078.pdfIn PDF document text
- http://onishi-kyosendo.jp/archive/16000702074.pdfIn PDF document text
- https://www.hemingway.bg/app/templates/js/ckfinder/userfiles/files/zozuz.pdfIn PDF document text
- http://semanbio.com/upload/files/81317540497.pdfIn PDF document text
- http://bluekeydigital.com/images/pic/file/jusoxenutilemaritoruzan.pdfIn PDF document text
- http://gyermekhaz.hu/Content/site_images/files/zemenurojaxewodavuguxixix.pdfIn PDF document text
- https://samirkumarpaul.com/ckfinder/userfiles/files/31759125978.pdfIn PDF document text
- http://speednewslive24.com/assets/ckfinder/core/connector/php/uploads/files/82528227701.pdfIn PDF document text
- http://evevoyance.fr/adh/.-/file/zazevurumu.pdfIn PDF document text
- http://struttur-arch.it/userfiles/files/43399385035.pdfIn PDF document text
- http://realfootball.gr/userfiles/file/kikasapujoroko.pdfIn PDF document text
- http://congseng.com/uploadfile/files/mopiw.pdfIn PDF document text
- https://marblobaths.ph/app/webroot/img/files/55474244396.pdfIn PDF document text
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613446f6bb372---95841929432.pdfIn PDF document text
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161383b6829221---85353368112.pdfIn PDF document text
- http://martonelektro.hu/files/file/bumuw.pdfIn PDF document text
- http://shiinamotors.com/js/upload/files/rekimelir.pdfIn PDF document text
- http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/161316e0d533a4---79654535709.pdfIn PDF document text
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161315b2fa40f1---63045571451.pdfIn PDF document text
- https://middletonchambers.com/ckfinder/userfiles/files/6884839197.pdfIn PDF document text
- http://bamila.vn/luutru/files/70089776578.pdfIn PDF document text
- http://szm.hu/userfiles/file/72756469807.pdfIn PDF document text
- https://fiberglasssupplydepot.com/userfiles/files/1983699761.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=libro+estres+y+ansiedad+pdfPDF link annotation
- 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_off0000d694.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD694 | 19416 bytes |
SHA-256: 96ea2ded54594a8818433d5e24a4caf71628104917a01b5995b3ba4adb81e2ae |
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font_01_sfnt_off0001086d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1086D | 10656 bytes |
SHA-256: bf83baf030b12498f8ecc4bbb7c17fc62448737a05a53ef1c802198d0bcae586 |
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font_02_sfnt_off000120cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120CC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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