MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs that form a link farm, a common technique for distributing malicious content or conducting phishing attacks. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the presence of multiple unknown reputation URLs strongly indicate this malicious intent. ClamAV detection further confirms its malicious nature, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/v8eqb2i5j2c0rcd393gpfrqh3q/risolijuritavavopafa.pdf
- http://soleilboo.com/images/uploads/files/12400160646.pdf
- http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094795658786---savenosagot.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f06ab0660e0---zajuravaxixurisukepapev.pdf
- https://investmentskillsgroup.com/images/userfiles/file/jadetogukenebizimimom.pdf
- http://pcwest1980.com/clients/9/9b/9b13e9c1eb96aaf026ead536bb80a376/File/27581344851.pdf
- http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160b12668a66a3---retorudavirakuta.pdf
- http://relocationservicesgroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160765b0a44e8b---89317318487.pdf
- https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/lcbp8d17t0ugceibufch5qfn08/gubibip.pdf
- https://aviseco.ro/userfiles/file/giropuzufivuma.pdf
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160983e2655072---31657637634.pdf
- http://codemessaging.net/ckfinder/userfiles/files/puwefivizomuza.pdf
- https://faresaldabbous.com/uploads/files/15520189686.pdf
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/160982f8e1f072---xopatituvonekur.pdf
- https://citytrafik.nu/images/file/rojos.pdf
- https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/160af1f0b9221b---20189604118.pdf
- http://staging.impactredevelopment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b5cef34f49---63486777890.pdf
- http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a1acbe1fd9e---41273580021.pdf
- https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/mhdl6v03d3mnv59au283bbu7j3/xinuvoxagideb.pdf
- https://jnfarley.com/wp-content/plugins/super-forms/uploads/php/files/3l1ofg8kb2pbgp2ev034pr9c83/69306189118.pdf
- http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1608f5c4f752ac---dokuxiju.pdf
- https://art-lamps-rali.eu/files/file/juranonobewalem.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=quimica+organica+alcoholes+ejercicios+resueltos+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_off0000f1a5.bin33995399383fdb34b8d7925b11d49a9ed383e058755ed89aa606fe8c20ad37b7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1A5 | 11356 bytes |
font_01_sfnt_off00010c07.bin0ff7faa745ca00a4a5613ca268b776c367be42466101761b5f3acc5b9fba0788 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C07 | 18212 bytes |
font_02_sfnt_off00013ad7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13AD7 | 16792 bytes |
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