MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users. While no scripts were explicitly extracted, the PDF structure and link farm behavior are indicative of a phishing or malware distribution lure, likely intended to trick users into downloading further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://purofirstli.net/userfiles/file/48363358359.pdf In PDF document text
- https://www.huaikrachaohospital.go.th/assets/global/lib/ckfinder/userfiles/files/9983109089.pdfIn PDF document text
- http://pro-elec.ru/ckfinder/userfiles/files/5160963258.pdfIn PDF document text
- https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/ab1537b987f30389bb711ea3da95a885/2414172866.pdfIn PDF document text
- http://americasbestwingsbeltsville.com/uploads/files/bugamazuno.pdfIn PDF document text
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/e7a40da8d4c5114bbbb0aec62dde89df/71346176946.pdfIn PDF document text
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/160b50f5de11bd---65110361086.pdfIn PDF document text
- https://globaltranslation.com/demo/global_translation/beta/userfiles/files/dalezunofuritut.pdfIn PDF document text
- https://trsoftyazilim.com/genelresimler/file/nasafopibovapalilofot.pdfIn PDF document text
- http://stolizstekla.ru/userfiles/file/96092314597.pdfIn PDF document text
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16124d31684abf---88108619424.pdfIn PDF document text
- http://hrudolf.com/userfiles/91179839314.pdfIn PDF document text
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160821858eb673---tavajumubuku.pdfIn PDF document text
- http://ozdoby-betonowe21.pl/Upload/file/logavawininukofixija.pdfIn PDF document text
- http://dienlanhlongan.com/upload/files/kudomitobebuxepulije.pdfIn PDF document text
- https://karapinarinsaat.net/userfiles/upload/file/sabefodixogibemotuw.pdfIn PDF document text
- http://ankamet.com/userfiles/file/kobixevulutabinulasivi.pdfIn PDF document text
- http://motolargo.pl/userfiles/file/melub.pdfIn PDF document text
- https://inks.bg/userfiles/file/xojukubowef.pdfIn PDF document text
- https://easypayindia.in/userfiles/file/62749680531.pdfIn PDF document text
- http://raylutickenterprises.com/userfiles/files/xosonebirubomipo.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=2011+ford+ranger+sport+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_off0000d8f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8F9 | 11132 bytes |
SHA-256: e21ca28867dcdb2a3ad23b2cbbee67b158515b0f001304112cfc1f48f7b7fddb |
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font_01_sfnt_off0000f2df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2DF | 17948 bytes |
SHA-256: a10777a1b2b0f21f4baccf83efc82969920a5313e0d779286d0eb5870cc3d87a |
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font_02_sfnt_off000121af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121AF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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