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 WordPress sites and disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The file's structure and URL patterns are consistent with a phishing lure or a downloader for a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://kotolantopeni.cz/file/mamibuwonisokoreruv.pdf In PDF document text
- http://varosom.hu/userfiles/files/39086358473.pdfIn PDF document text
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139450e99467---26113190765.pdfIn PDF document text
- http://janjoling.com/public/ckfinder/userfiles/files/nozurekukofibex.pdfIn PDF document text
- https://trungtammatnamviet.vn/upload/files/75986938815.pdfIn PDF document text
- http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/161374de4b1477---fonokujovivexador.pdfIn PDF document text
- https://anne-berger.de/sites/anne-berger.de/files/fkcfile/fazexekexelodet.pdfIn PDF document text
- https://mariapolis.es/ckfinder/userfiles/files/petomavupuwano.pdfIn PDF document text
- http://cokhitienvuong.com/uploads/files/fonavorusas.pdfIn PDF document text
- http://usairsprings.com/userfiles/file/91866508855.pdfIn PDF document text
- http://risme.vn/files/wofasotavufo.pdfIn PDF document text
- http://nessium.net/userfiles/file/74292259807.pdfIn PDF document text
- https://selapro.com.au/application/third_party/ckfinder/userfiles/files/20908772777.pdfIn PDF document text
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16130e678dd001---55153104919.pdfIn PDF document text
- http://combatkuntao.com/ckeditor/ckfinder/userfiles/files/kogolafedisosimavumozisi.pdfIn PDF document text
- http://mmprogetti.it/userfiles/files/93077982149.pdfIn PDF document text
- http://seksdagen.nl/userfiles/file/suledivanovaduzemetepe.pdfIn PDF document text
- http://chamdure.com/DATA/files/7949565631.pdfIn PDF document text
- http://gayaarchi.com/userfiles/file/20210904110551.pdfIn PDF document text
- https://pustelnik-budownictwo.pl/ckfinder/userfiles/files/nifagopoxixupezedareko.pdfIn PDF document text
- http://powerfalcon.net/uppic/files/lowuzuma.pdfIn PDF document text
- http://1night2day.com/ckupload/files/7744623564.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=avengers+initiative+androidPDF 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_off0000ca6d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA6D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e27f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE27F | 18984 bytes |
SHA-256: 5b892696cab51c1247e916ba639a3ba82206375310ada664bc1cd454ab19cb00 |
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font_02_sfnt_off000113f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113F3 | 10424 bytes |
SHA-256: 2784e03ae22951bc668ba83421b3d7e5775a88a60e6b1adacb89a865f9aa34d8 |
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