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. The document contains numerous links pointing to external websites, many of which are hosted on compromised CMS uploads or disposable domains, suggesting a link farm designed to redirect users to malicious content. No scripts were extracted from this sample, but the presence of external links and the nature of the heuristics strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9822
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 https://infrive.ru/uplcv?utm_term=12+angry+men+movie+questions+and+answers
- http://andlupa.com/userfiles/file/76070469654.pdf
- https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/6c0a9a41f059f3e0e2c274fdbe952003/14579775617.pdf
- http://www.alexgis.com/siteuploads/editorimg/file/67004398640.pdf
- http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adb9d375e22---xonafumazotok.pdf
- http://www.anjhimayath.com/upload/file/67738990495.pdf
- http://iziusb.com/userfiles//file/bisivezelijafafifasut.pdf
- https://expresstestingatl.com/wp-content/plugins/super-forms/uploads/php/files/aeb2b0817c3cff018e28ee5f776c53df/jajiralomen.pdf
- http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c67e2b9514---gadodosajadaje.pdf
- https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/7e55624f43e326b45f852af0d35e4ff9/votorifadu.pdf
- https://polskieplytki.com/wp-content/plugins/super-forms/uploads/php/files/3a509331c50c0cb5c8b95e47009c6aaf/75851948753.pdf
- https://regeneracion-capilar.com/wp-content/plugins/super-forms/uploads/php/files/1b19caa85ad57bcffd805db7956360fa/negamabimarumu.pdf
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b54ca2b23d4---levilobupakapafifom.pdf
- https://lacecinella.com/writable/public/userfiles/file/88680862799.pdf
- http://childconnect.com/swi/fckfiles//file/12125828467.pdf
- https://corpusbg.com/files/fck/file/gajoxeke.pdf
- https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ca01a908bd6---29027784300.pdf
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160c27d42941f4---22041828635.pdf
- http://www.hussco-steel.com/husscofiles/files/77889249242.pdf
- http://mdbim.pl/ubezpiecz/obrazy/file/16976744694.pdf
- http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160822431d8776---54528361605.pdf
- https://defrokatilai.lt/images/files/nenizudaseve.pdf
- http://www.agenbenangbandung.net/file/54466552982.pdf
- http://phenix-security.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607ee0c15b2c7---wivesakidi.pdf
- http://colescastle.com/clients/875019/File/sasatebodi.pdf
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c202e454282---9545199139.pdf
- http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/160af943aace60---boxir.pdf
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c7327cf0b18---gofotufevepuzenegafukigi.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010a55.bindd103bab1212b2fb8c92d6285b7809e9cdfb31ff3b9a4efa6e21fe9a5a4f6c23 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A55 | 17012 bytes |
font_01_sfnt_off00013619.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13619 | 16792 bytes |
font_02_sfnt_off00014e30.bina877147ace6bf3b2c5ca7718cf0861d89de77e74573fac795e76c80c20aa61a6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14E30 | 11132 bytes |
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