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 multiple URLs pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to distribute malicious content or phish users. The presence of external URIs and a link farm structure strongly indicates a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://emiem.pl/public/upload/ckfinder/userfiles/files/nadidefuverofuruja.pdf In PDF document text
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f1511eb54d---36270356966.pdfIn PDF document text
- http://simonhoirup.dk/userfiles/file/pojaloxatinoramofokenirot.pdfIn PDF document text
- http://elverum-revmatiker.no/images/file/nuwudegolukovivuf.pdfIn PDF document text
- http://protezas.lt/i/File/59874815656.pdfIn PDF document text
- http://hidropro.hu/upload/67520131312.pdfIn PDF document text
- https://dmitrovka-zn.ru/admin/ckfinder/userfiles/files/zirujelosewonutodum.pdfIn PDF document text
- http://irinka.org/ckfinder/userfiles/files/9368617044.pdfIn PDF document text
- https://hamayeshniroo.com/shop/file/limikinefetutum.pdfIn PDF document text
- https://capecoralliving.com/media/file/52274166625.pdfIn PDF document text
- http://kaies.net/upfiles/file/23828064884.pdfIn PDF document text
- https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/0aisdsrorpmusbfcnao7tm8t9k/tapokitugum.pdfIn PDF document text
- http://didula.com/img/file/21887113655.pdfIn PDF document text
- http://bebaldebaran.eu/userfiles/files/rudilazejipuvet.pdfIn PDF document text
- http://lasantitosrestaurant.com/userfiles/file/ropusariwime.pdfIn PDF document text
- https://sharmtocairo.com/userfiles/files/44596692020.pdfIn PDF document text
- http://neboskreb-irk.ru/uploads/userfiles/files/46384493165.pdfIn PDF document text
- https://jecoexports.com/ckfinder/userfiles/files/zarurunatobukawav.pdfIn PDF document text
- http://bestpokeya.com/uploads/files/xeroxut.pdfIn PDF document text
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16133c4b854842---rozisobiked.pdfIn PDF document text
- https://signika.pl/Upload/file/xedugejivawikogir.pdfIn PDF document text
- http://eldorautomaticgates.com/UserFiles/file/85298087223.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=install+viber+on+android+tablet+wifi+onlyPDF 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_off0000c279.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC279 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000da8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA8B | 17452 bytes |
SHA-256: 3c722474dbdaf9f1d84667cd6ad76b173d2169b153f61c42727e19b3a2a4816c |
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font_02_sfnt_off00010760.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10760 | 10704 bytes |
SHA-256: 67d5f3b3c7c827290e919fda94752b9648ce96ef33496c95e3996ad52951860a |
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