MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file containing embedded JavaScript, which is a common technique for delivering malicious payloads. The PDF also contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 8
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://lex-ter.ru/admin/ckfinder/userfiles/files/wisuguwatedeveloduw.pdf In PDF document text
- http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202106161817326361.pdfIn PDF document text
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/krnnbcapocqrskee8ovd8imol2/lizagomuvaxugabubenu.pdfIn PDF document text
- https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/lrm925smk23j7r5k29676ikuv6/42947877373.pdfIn PDF document text
- https://motodubai.com/uploaded_images/files/96091348508.pdfIn PDF document text
- http://hanlacsclub.com/ckupload/files/mamezejinigipusumiwagate.pdfIn PDF document text
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfe6018ed8c---33364005033.pdfIn PDF document text
- http://tubietelbar.hu/uploadfile/5408176016.pdfIn PDF document text
- http://volvo-cars.jp/js/upload/files/79025901868.pdfIn PDF document text
- http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acf50c624d9---bipifovojidit.pdfIn PDF document text
- https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/894c7ef1bc365a3d08af4cc71f425ba1/zubinene.pdfIn PDF document text
- https://newtop-eg.com/userfiles/file/tegumulo.pdfIn PDF document text
- http://anhuicrew.com/upload_fck/file/2021-5-10/20210510075908247808.pdfIn PDF document text
- https://www.carnesvarejo.com.br/assets/ckfinder/core/connector/php/uploads/files/sabazegedovibe.pdfIn PDF document text
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/9ba276f9b73a05a08f7409e029306e04/65395570400.pdfIn PDF document text
- https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/d9a0fc311a6c2646c7a7d3aa0807224a/49832091990.pdfIn PDF document text
- http://pierrevillers.fr/mairie_files/file/96442024041.pdfIn PDF document text
- http://keletunderground.hu/images/uploaded_pics/file/wajedebemibuvuge.pdfIn PDF document text
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160829a60c6e60---xofirivawuzuwi.pdfIn PDF document text
- https://jsptti.com/ckeditor/ckfinder/userfiles/files/nuropezukivu.pdfIn PDF document text
- http://abwplazaview.com/uploads/files/28648602578.pdfIn PDF document text
- http://luyenthidhcanhsat.com/Images_upload/files/lokutakimojorizijepogaj.pdfIn PDF document text
- http://www.sealjet.mn/pictures/files/11820974875.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=welcome+to+new+york+full+movie+download+worldfree4uPDF 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_off0000e199.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE199 | 10996 bytes |
SHA-256: 35acdddd15f1b4fcd90dfdfacdbb52bb60af1332643e0c2c7f6974ce979d71e2 |
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font_01_sfnt_off0000fb39.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB39 | 17620 bytes |
SHA-256: 098ce42ef8bc364c6a5da1243287d3764d18c77cc6eb8f211d5f7c0ba133e6c5 |
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font_02_sfnt_off000128b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128B0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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