MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for delivering malicious payloads or redirecting users to malicious websites. Several heuristics indicate the PDF is part of a link farm, with many URLs pointing to potentially compromised or disposable hosting. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 http://gesgo.de/userfiles/file/57226884052.pdf In PDF document text
- http://datacomsystems.cz/userfiles/file/43753540301.pdfIn PDF document text
- https://www.reflectionuk.com/wp-content/plugins/super-forms/uploads/php/files/k5hui5cuqv2ob9sbejjcloongf/rasorujuduzo.pdfIn PDF document text
- https://servicepapik.ro/files/88783345641.pdfIn PDF document text
- http://pamat.ro/UserFiles/file/tokuxawinojubofifizinifu.pdfIn PDF document text
- https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/22eb149fb5dd16051d4a578b54a9dbed/wamewe.pdfIn PDF document text
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c203ec94734---tuweluxukerojaj.pdfIn PDF document text
- http://xn--zb0by3yusal20ak5lcidnwigi.com/ckfinder/userfiles/files/1629593234.pdfIn PDF document text
- https://corpusbg.com/files/fck/file/zilaz.pdfIn PDF document text
- https://quickonboarding.com/wp-content/plugins/super-forms/uploads/php/files/09f77a7122c2cc6cc86db6b7a038f2ef/dabibukujifozegazuwarefa.pdfIn PDF document text
- http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/16077a346deb13---50951049184.pdfIn PDF document text
- http://mya1fc.com/files/ckuploads/files/23891710659.pdfIn PDF document text
- http://akcjonariusz.com/UserFiles/file/patomikotegewerapebosopon.pdfIn PDF document text
- http://print-printonline.com/ckfinder/userfiles/files/fukizogevozukuluna.pdfIn PDF document text
- https://www.kasekimi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073c2ffc0efa---wuriroxafubomo.pdfIn PDF document text
- http://aivieksteslaivas.lv/userfiles/file/mekewixuborakufemoxuzuxen.pdfIn PDF document text
- http://www.aaar.cat/assets/js/ckfinder/userfiles/files/39145573186.pdfIn PDF document text
- http://xn--90aoaidn.xn--p1ai/ckfinder/userfiles/files/84880931136.pdfIn PDF document text
- https://campermagazine.tv/public/file/520222906.pdfIn PDF document text
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1ebf8a3c15---wewedesojejusivugu.pdfIn PDF document text
- https://www.federatedlighting.com/wp-content/plugins/super-forms/uploads/php/files/8d7098f6251f54c49ceabb1f25f97d8d/58793023746.pdfIn PDF document text
- http://lookkorea.net/userfiles/file/zaleg.pdfIn PDF document text
- http://www.contectrade.hu/fckfiles/file/wadosatomifasogaxizogop.pdfIn PDF document text
- https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/30d8a4a057912c9646dac69884f68af8/30039386970.pdfIn PDF document text
- http://elitvorota.ru/f/file/gerupolosuxonajesimuxox.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=photosynthesis+worksheet+8th+gradePDF 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_off0000d8d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8D4 | 10984 bytes |
SHA-256: 34b8fa51d08c94b7c2571ddd5eb4a3049c23c1d882f6b2db8adf53f010414efb |
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font_01_sfnt_off0000f234.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF234 | 18464 bytes |
SHA-256: d80d37c9a4c9bfb0b93040adae57b839574c12c3fd5b0874e769cc0e9135c26b |
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font_02_sfnt_off00012152.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12152 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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