MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains a link farm pointing to multiple compromised websites and disposable hosting, designed to redirect users to potentially malicious content. The presence of numerous external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly suggest an attempt to distribute malware or phish credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://codemessaging.net/ckfinder/userfiles/files/96359004224.pdf In PDF document text
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/4d399055010cc96764f9456cfb5e9a9a/liragot.pdfIn PDF document text
- http://laptopplus.be/app/webroot/files/userfiles/files/84672615761.pdfIn PDF document text
- http://taxiluzern.ch/khurasan/userfiles/files/53512919708.pdfIn PDF document text
- http://huseyindurmuslar.com/images_upload/files/31079157769.pdfIn PDF document text
- http://swapnakoodu.com/fck_uploads/file/geteneniz.pdfIn PDF document text
- http://clair-environnement.eu/catalogue_dynamique/file/biresafiwexijawuj.pdfIn PDF document text
- http://www.oteliapelsin.ru/ckfinder/userfiles/files/lemotivudof.pdfIn PDF document text
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/6bb45801d6614f4e3a80a0132e72b1c3/1505884348.pdfIn PDF document text
- http://metamorfoza-krosno.pl/userfiles/file/83739367408.pdfIn PDF document text
- https://tssch.in/tssch/application/admin/uploads/file/13880937373.pdfIn PDF document text
- http://ppfi-online.com/userfiles/file/vuvonox.pdfIn PDF document text
- https://rwd1.thadv.com/upload/files/98665962392.pdfIn PDF document text
- https://peperita.it/writable/public/userfiles/file/dafifojiwuruvab.pdfIn PDF document text
- https://www.iieng.org/editor/ckfinder/userfiles/files/disazo.pdfIn PDF document text
- http://fotografieindex.nl/images/uploads/mewipagimeperonake.pdfIn PDF document text
- http://cathugo-catamarans.de/res/wysiwyg/file/gagaviwezitil.pdfIn PDF document text
- http://ap116.ru/userfiles/file/wilivalebadifelas.pdfIn PDF document text
- http://timeyear-v.com/userfiles/file/davapelumud.pdfIn PDF document text
- https://dondepodemosir.com/userfiles/file/fomixakum.pdfIn PDF document text
- https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/pqo1g84401hjmpcs1gv5eboq43/dexebisisipeneraveru.pdfIn PDF document text
- http://shlawllc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/32999920909.pdfIn PDF document text
- https://clinicaabrahaoosta.com.br/ckfinder/userfiles/files/kozojatufagokaw.pdfIn PDF document text
- https://kultmotor.hu/images/files/12510227019.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=marvel+contest+of+champions+unlimited+unitsPDF 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_off0000cf20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF20 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e737.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE737 | 11044 bytes |
SHA-256: b61fb091e3f5a265f8b3336609e777cc8a32977661c53ef60e59e98c300493aa |
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font_02_sfnt_off000100ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100BA | 17716 bytes |
SHA-256: 2e0e71db117f21c16d6ac102ac65ea0c604d73ddd4d7a5148855554c83b527ba |
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