MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://modra-skola.cz/userfiles/file/togovejuzuterelutiwal.pdf In PDF document text
- https://contabil-fiscal.ro/mm/file/65658538545.pdfIn PDF document text
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/160871fbf34d72---8271458306.pdfIn PDF document text
- http://wdnederland.nl/file/jitepokokeludapodotuba.pdfIn PDF document text
- https://baongochoa.com/upload/file/lozarise.pdfIn PDF document text
- http://ecohouse-lab.de/userfiles/file/97358444520.pdfIn PDF document text
- https://careoncall.in/userfiles/files/12643914529.pdfIn PDF document text
- http://bioscipublisher.com/files/upfiles/file/tozabegidavufejuvipax.pdfIn PDF document text
- https://aimtronu.org/userfiles/file/fipulubef.pdfIn PDF document text
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a85764e4745---14403780641.pdfIn PDF document text
- http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ac9556887c---85650181401.pdfIn PDF document text
- https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/5rggc7ibd778m20bsv67t0ugod/vejijufuweri.pdfIn PDF document text
- http://zulassungsdienst4you.de/bilder/file/73303002756.pdfIn PDF document text
- http://www.valathors.com/ckfinder/userfiles/files/jironigudeponat.pdfIn PDF document text
- http://vejwun.cz/images/vuvavebomerazowagawub.pdfIn PDF document text
- http://www.alex-vasilkov.ru/images/wisdom/file/fubusebipitubula.pdfIn PDF document text
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/f52f1de56fe4ad80359b484caddbfbbd/kesar.pdfIn PDF document text
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc6a335876a---padozale.pdfIn PDF document text
- http://daehwa.info/uploaded/file/fabiriluwudapul.pdfIn PDF document text
- http://poney-club-romilly-aigre28.fr/userfiles/file/62025804493.pdfIn PDF document text
- http://patokapugsnkisses.com/clients/61143/File/45896757442.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=approximation+rules+in+mathematicsPDF 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_off0000ad76.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD76 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c588.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC588 | 15344 bytes |
SHA-256: 6c72a687f7b5d9f32ec865411a367f94d92ac91a620636298eb51290db8f041a |
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font_02_sfnt_off0000ece8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECE8 | 10824 bytes |
SHA-256: a786d6a6d3b7ef2ec0b38241ab978b4fbb31bf051ba7509edee58765f60b7c64 |
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