MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript and a large number of external URIs. The heuristics indicate that many of these URIs point to compromised WordPress upload directories or disposable hosting, forming a link farm. The embedded JavaScript likely serves to redirect the user to these malicious links, potentially for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://catamma.ru/uplcv?utm_term=federal+and+state+powers PDF link annotation
- http://chinazzjx.com/d/files/39998853163.pdfIn PDF document text
- https://rosemonttherapy.health/wp-content/plugins/super-forms/uploads/php/files/eml3pganjf74rs8f5uermjdsar/xatiriti.pdfIn PDF document text
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ff1d79c674---62058207920.pdfIn PDF document text
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608631a4ba909---gajafuvobokasefev.pdfIn PDF document text
- https://jiptv.nl/wp-content/plugins/super-forms/uploads/php/files/6ub8i2hp9lteltgaqrd4nfl80o/15139340675.pdfIn PDF document text
- http://akgikorea.com/file_upload/fck_upfile/file/94507191717.pdfIn PDF document text
- https://ambientltg.com/wp-content/plugins/super-forms/uploads/php/files/36de8a5316ff3d9a01cdf31b490c82b5/figifiwuturod.pdfIn PDF document text
- http://pumarecovery.com/userfiles/files/loxojufaxijeku.pdfIn PDF document text
- http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16076b0968234d---17681228545.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/moxofuxawibuxe.pdfIn PDF document text
- https://www.schroedersales.com/wp-content/plugins/super-forms/uploads/php/files/7585e5361982efb7c3c636e80b3cc82a/vadadiponewukufipulitoj.pdfIn PDF document text
- https://muacash.com/webroot/img/files/50138453828.pdfIn PDF document text
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/b7da1ae03285fa5ec666476395c5e951/koxegikemixe.pdfIn PDF document text
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/b2c1606e5619d591d6d0df4b985a7b0a/79445981862.pdfIn PDF document text
- http://vnos.vn/app/webroot/uploads/files/periwa.pdfIn PDF document text
- http://oilandgaswork.com/userfiles/file/pedubodopov.pdfIn PDF document text
- https://sunnyrosesschool.com/userfiles/file/92694800200.pdfIn PDF document text
- http://skyrun-arser.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210620010050590064miczth.pdfIn PDF document text
- http://haiqi-machine.com/d/files/tizutakurelamijibos.pdfIn PDF document text
- http://kwartetproforma.com/userfiles/file/40551456447.pdfIn PDF document text
- https://erdemlerkoleji.com/resimler/files/gegux.pdfIn PDF document text
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/m030ftgc69o3l1cub3rjdvfb1c/peviroduzadenojogetivu.pdfIn PDF document text
- http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16095b6f94ab7d---xomunemilazabowolewisez.pdfIn PDF document text
- http://sansboundaries.com/clients/f/fd/fde0d4b6b324343791c5f0705b221951/File/wisiparekufodoli.pdfIn PDF document text
- https://abofahed.com/userfiles/file/wubiwezugadevon.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010608.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10608 | 10356 bytes |
SHA-256: a6e5555ff4a3cb5e45dd4e6c864be7ecc835d782aa820881503891e97d7ea70f |
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font_01_sfnt_off00011d9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D9E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000135b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135B0 | 17088 bytes |
SHA-256: b3c1eb8d1c684bc8f2991f8554e749aee7dd6ae36c611e12dc3d1e66e8307773 |
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