MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous URLs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to potentially harmful content. While no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with phishing or SEO-based malicious redirection campaigns.
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 http://csp.hu/editor_up/zezusinufetere.pdf In PDF document text
- https://seo-methodes.com/userfiles/file/44784910912.pdfIn PDF document text
- https://cvssteelex.com/ckfinder/userfiles/files/dozidevasisonutuforeteke.pdfIn PDF document text
- https://polandpools.com/contents/files/68742831937.pdfIn PDF document text
- https://pemaboutiquehotel.com/assets/userfiles/files/masatoferotifapafix.pdfIn PDF document text
- https://cargobull.cz/res/file/limuwin.pdfIn PDF document text
- http://bydnjl.com/userfiles/files/68205063788.pdfIn PDF document text
- https://abandassociates.com/ckfinder/userfiles/files/80284291821.pdfIn PDF document text
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16137e1b9ed318---rirafusenunezisotu.pdfIn PDF document text
- http://leebyunghun.org/new/upload/board/files/29191533803.pdfIn PDF document text
- http://1yunnan.com/ckfinder/userfiles/files/ritofexugefitivisodelu.pdfIn PDF document text
- http://tiendanatacion.com/noticias/files/tipubumixawab.pdfIn PDF document text
- https://jecoexports.com/ckfinder/userfiles/files/47244682958.pdfIn PDF document text
- http://tnslib.tools/userfiles/files/mogifiroxuxami.pdfIn PDF document text
- https://inprovitparaguay.com/ckfinder/userfiles/files/49012663519.pdfIn PDF document text
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612fa7a7dc43a---nemukagurukuporit.pdfIn PDF document text
- http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/16132957749256---gobupun.pdfIn PDF document text
- https://marupyara.com/fotos/userfiles/file/68390350922.pdfIn PDF document text
- http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161347be720294---99875897922.pdfIn PDF document text
- http://zhongyuemedia.com/filespath/files/20210907234854.pdfIn PDF document text
- http://vibrobeton.by/pics/files/28428265664.pdfIn PDF document text
- http://phupmirpol.pl/userfiles/file/39724489239.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=honda+cr+v+ex+2018+owners+manualPDF 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_off0000cf93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF93 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e7aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7AA | 11188 bytes |
SHA-256: e7916fcd361d7306b83b573304981c97849778462f4681438eb6c8757d06f27d |
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font_02_sfnt_off000101f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101F8 | 17028 bytes |
SHA-256: 4b86ac45e22f877cc3ccbbc82333d9344782ded997d3875bc010a35f3d38ad59 |
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