MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to distribute malicious content. The ClamAV detection and ML classifier strongly suggest a phishing or trojan payload. The presence of external URI heuristics and link farm indicators further supports the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 https://chcial.ru/uplcv?utm_term=how+to+open+mov+file+in+android PDF link annotation
- http://otohondamientay.com/upload/files/25111373569.pdfIn PDF document text
- http://ropesadventure.com/d/files/pexetukusemukimis.pdfIn PDF document text
- https://jamisonfurnace.ca/userfiles/files/68005345806.pdfIn PDF document text
- http://logistra.fr/ressource/site-image/files/87149923539.pdfIn PDF document text
- https://tlproduct.com/userfiles/file/93947804423.pdfIn PDF document text
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/1612fcfffcff53---bifukivas.pdfIn PDF document text
- https://gujaratisamajparis.org/upload/files/kagipavifolatojoxedafid.pdfIn PDF document text
- http://themadthinker.com/temp/vinney/HTML/userfiles/file/lanisufoxubotenazisosow.pdfIn PDF document text
- https://goez3.com/10005001208290177/ckfinder/userfiles/files/82574525403.pdfIn PDF document text
- http://www.asiacoservice.com/file/files/38813988998.pdfIn PDF document text
- http://ccadl.com/files/20210912050050.pdfIn PDF document text
- http://danguykhoidoanhnghiephp.vn/Upload/files/68631333439.pdfIn PDF document text
- http://hanyangsteel.com/files/fckeditor/file/1358178313612ffca5729f5.pdfIn PDF document text
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/cda36a5068fdf009cabed2b57b9f9491/pozavuzaxowitowire.pdfIn PDF document text
- http://drukarnia-skawina.pl/app/webroot/media/files/zeduw.pdfIn PDF document text
- http://agisinfo.ru/uploads/content/files/73731604161.pdfIn PDF document text
- https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/1313eff71a3b32e5727aaac59fa8e483/roxesib.pdfIn PDF document text
- https://proetcontra.hu/userfiles/file/fijasosesadugobagomaroni.pdfIn PDF document text
- https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/bd843384252e08c7e36c778615e3e804/88417149682.pdfIn PDF document text
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138d45f56291---givabadegudame.pdfIn PDF document text
- https://ntc-container.com/upload/files/27338528438.pdfIn PDF document text
- https://www.blondel-bois.fr/ckfinder/userfiles/files/61206258497.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_off0000d42e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD42E | 10632 bytes |
SHA-256: ce7e44579a5d55ee9a610383b1765a4c0f1d37900c8ca62c465f41508eede7ee |
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font_01_sfnt_off0000ec70.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC70 | 17464 bytes |
SHA-256: e28cbadfbb50bdc1c5ec4f8b50c12a44c79a633f62dc784603f9ee6630421b47 |
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font_02_sfnt_off00011984.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11984 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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