MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains a large number of links, many pointing to potentially compromised or disposable hosting, suggesting it functions as a link farm to distribute malicious content or phish users. No scripts were extracted, but the presence of numerous external URIs indicates a strong intent to redirect the user to external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://brilspa.ro/userfiles/file///13275897089.pdf In PDF document text
- http://zulassung4you.de/bilder/file/mivukoxaminunaguritopuj.pdfIn PDF document text
- http://haitrungkim.vn/uploads/userfiles/file/xulatatege.pdfIn PDF document text
- https://ever-progress.dacola.com/upload/files/gawimizimamilaf.pdfIn PDF document text
- https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/c2f87e9652380228d4b444e433362ba2/29672181373.pdfIn PDF document text
- http://architectureanddesign.it/userfiles/files/25619170478.pdfIn PDF document text
- http://bebaldebaran.eu/userfiles/files/dosikodolagomoguleg.pdfIn PDF document text
- http://s13cf5ef.alojamientovirtual.com/ropadefutbolbarata/userfiles/file/60613778162.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16130194c29cfb---18674696896.pdfIn PDF document text
- http://mlead.net/images/e/file/deworifazenamubibipuger.pdfIn PDF document text
- https://cplastik.cz/data/cms/file/fagita.pdfIn PDF document text
- http://vhktn.at/images/content/files/70359249951.pdfIn PDF document text
- http://gowowdeli.com/uploads/files/13989345780.pdfIn PDF document text
- http://tiwtactic.com/userfiles/files/robibabudasipun.pdfIn PDF document text
- https://sesconbs.org.br/ckfinder/userfiles/files/67635410102.pdfIn PDF document text
- http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/161343490ca524---gapil.pdfIn PDF document text
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16133e59323f34---poxabujepi.pdfIn PDF document text
- http://disonde.com/filespath/files/20210910194638.pdfIn PDF document text
- http://torby.kbo.pl/ckfinder/userfiles/files/26910863712.pdfIn PDF document text
- http://vijyaiprismcrm.com/userfiles/files/gutezudunusapodefud.pdfIn PDF document text
- http://yigang-lin.com/uploads/files/202109030334142048.pdfIn PDF document text
- https://sproname.com/files/userfiles/files/28666863199.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=resolution+changer+rootPDF 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_off0000d3d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3D5 | 18380 bytes |
SHA-256: 8ebf522fbe342f2d6d0e05f9842fdd31e01061c976b91013725244c0441b8842 |
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font_01_sfnt_off000103cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103CB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011be2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BE2 | 10656 bytes |
SHA-256: 6e7bb8a709d3271c5a39c85fa2615a30e3159edbf534271b2d80567e1ee52fd2 |
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