MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm, with several URLs pointing to compromised CMS upload directories and disposable hosting. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure suggests it is designed to redirect users to potentially malicious external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
Heuristics 6
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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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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://orderleesushi.com/uploads/files/sukajasutifavizepisedabom.pdf In PDF document text
- http://se-ty.com/uploads/userfiles/file/35270278735.pdfIn PDF document text
- http://hengfengpaper.com/filespath/files/20210902105244.pdfIn PDF document text
- https://albawadiroad.com/userfiles/files/8567172604.pdfIn PDF document text
- http://xn--aknmedcal-wpbe.com/uploads/file/jufaweronenov.pdfIn PDF document text
- https://happyfun.tw/uploads/files/202109030409263574.pdfIn PDF document text
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/16138b6344aa3c---lulomumubabisu.pdfIn PDF document text
- http://generaltubi.com/container/ckfiles/files/vubipodajud.pdfIn PDF document text
- https://tasivn.com/upload/ck/files/wezavuwemo.pdfIn PDF document text
- http://wych123.com/upload/files/51207081645.pdfIn PDF document text
- http://iproperty.ae/userfiles/file/rutimabixa.pdfIn PDF document text
- http://www.sec-ollivier-associes.fr/www/upload/file/16028426668.pdfIn PDF document text
- http://www.europesolidaire.eu/userfiles/files/98281366641.pdfIn PDF document text
- http://zhouzhuank.com/v15/Upload/file/202194232995516.pdfIn PDF document text
- https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/c58da093836afae26322b5ad86fc7dd5/zonomiximew.pdfIn PDF document text
- http://www.tobywells.org/media/fckdir/file/bilon.pdfIn PDF document text
- http://www.focitabor.hu/userfiles/file/95961356838.pdfIn PDF document text
- http://emusicmarket.com/upfile/board/files/79849722129.pdfIn PDF document text
- https://ahl2005.com/ckfinder/userfiles/files/fowew.pdfIn PDF document text
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16133d0efdccea---loxigerubeva.pdfIn PDF document text
- https://notarbrazda.cz/userfiles/file/In PDF document text
- https://nationalshield-uae.com/userfiles/files/40228289138.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=best+video+chat+site+with+strangersPDF 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_off0000d79d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD79D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000efaf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFAF | 18060 bytes |
SHA-256: 863ab33cf82a037fe59907354e2e2cf385286cc68bdf08e08bb3c75fdf4bfcc4 |
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font_02_sfnt_off00011ec4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EC4 | 10808 bytes |
SHA-256: 4bf5a86ef784e2574c320f873c77e76f2c520d8001d6dc6cd732c654e471c484 |
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