MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a link farm, directing users to multiple external URLs. Several of these URLs point to compromised CMS upload storage, indicating a potential distribution point for malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 5
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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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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://ozora.schaffsen.com/contents/file/71021029031.pdf In PDF document text
- http://ozt.zielonetarasy-cieplice.pl/uploads/userfiles/files/puzen.pdfIn PDF document text
- https://taybaite.com/userfiles/file/45770575565.pdfIn PDF document text
- https://eyescare.vn/app/webroot/upload/ckfinder/files/dubiwujoxuwo.pdfIn PDF document text
- http://cukiernia-waltar.pl/qcms/userfiles/file/tititolomakebozejuvadur.pdfIn PDF document text
- http://radecznica.pl/userfiles/file/82575905117.pdfIn PDF document text
- http://fizjoactiv.eu/Upload/file/dogin.pdfIn PDF document text
- http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/lmb89sa53e5u2nr53bkg2h2pd0/3083441554.pdfIn PDF document text
- http://www.maderas-navarro.com/ckfinder/userfiles/files/lulenexenajimitotulapifi.pdfIn PDF document text
- https://rheinfurth.de/userfiles/file/89055141557.pdfIn PDF document text
- https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16142231535543---4022200042.pdfIn PDF document text
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/2bc767f956341f8ba20382ed8ebb68da/90153167954.pdfIn PDF document text
- http://www.ez4parcel.net/upfile/files/2021/09/01/31638238776.pdfIn PDF document text
- http://parejalecaros.com/adjunto/upload/fck/files/xusetapevagusujulokise.pdfIn PDF document text
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/03c3aa0ef7163aca45ea310123ae29b7/mazerurawujov.pdfIn PDF document text
- http://uceng.net/_UploadFile/Images/file/52581592150.pdfIn PDF document text
- http://gsprojekt.eu/userfiles/files/tuparob.pdfIn PDF document text
- https://www.oalysa.cz/ckfinder/userfiles/files/vofetarixil.pdfIn PDF document text
- http://mabo-meccanica.eu/userfiles/files/56502335140.pdfIn PDF document text
- http://idealthailand.com/file_media/file_image/file/zifopav.pdfIn PDF document text
- http://machin.kr/userData/board/file/84801311351.pdfIn PDF document text
- http://sportsbettingconsultants.net/cote_dor_import/admin/ckfinder/userfiles/files/8831860349.pdfIn PDF document text
- http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16137120b9b708---97997626669.pdfIn PDF document text
- http://wamer.org/userfiles/file/subonivajifutirepititiwa.pdfIn PDF document text
- http://www.singchai.co.th/ckfinder/userfiles/files/59146890754.pdfIn PDF document text
- http://saipanbooking.com/FileData/ckfinder/files/20210906_448AF83A46F950CC.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=standing+up+falling+down+watch+onlinePDF 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_off0000dcf3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCF3 | 10892 bytes |
SHA-256: 5867d880a51676e81275112c260c45aaaaeade9b455603eb3c5154c3692b7990 |
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font_01_sfnt_off0000f5f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5F5 | 17276 bytes |
SHA-256: fceac2117de8ec2fe76c511b394d22ca4c5498e3d9815d58cb460fb2cd26d467 |
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font_02_sfnt_off00012284.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12284 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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