MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV detecting it as a phishing trojan. It contains numerous links to compromised websites and disposable hosting, suggesting it is part of a link farm designed to redirect users to malicious content. The file's structure and numerous external links indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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 https://catamma.ru/uplcv?utm_term=common+proper+nouns+worksheet+grade+5 PDF link annotation
- http://v-lukomorie.com/uploader/files/senexefimexazaferibase.pdfIn PDF document text
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c917e3b173f---lavuli.pdfIn PDF document text
- https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/ohu1rlmoms16p7t3f2ni5j75mv/56528523547.pdfIn PDF document text
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b2661eddec1---96532793053.pdfIn PDF document text
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1609d5aed91b95---fowura.pdfIn PDF document text
- https://cesiedizioni.com/userfiles/file/44501844632.pdfIn PDF document text
- https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/41bbb090686d37ded8a064bd68b60ee9/nupoludowakiwiwewumoke.pdfIn PDF document text
- http://swatimishra.in/uploaded_files/userfiles/files/82052700497.pdfIn PDF document text
- http://solarhomepage.ch/fckeditor/editor/images/file/zexuwutidibufovokufuxiz.pdfIn PDF document text
- http://holidayservicemarsala.it/userfiles/files/2809805208.pdfIn PDF document text
- http://yossy.biz/userfiles/file/35343778014.pdfIn PDF document text
- http://ergo-logo-bamberg.de/userfiles/file/kufumodizorelolimuxumuke.pdfIn PDF document text
- http://poketomecam.com/uploads/files/8045074472.pdfIn PDF document text
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/0cad61800bd63a2caf8ca12ae7cdc113/41353318952.pdfIn PDF document text
- https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/re47rja5bkkup3i7iric81met1/86258860510.pdfIn PDF document text
- http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a052424f119---58245280630.pdfIn PDF document text
- http://0-50.ru/userfiles/file/dusedogapubegatikalexito.pdfIn PDF document text
- http://wo-kop.pl/userfiles/file/fafofewalinira.pdfIn PDF document text
- https://ajwatravel.com/wheelmarine/userfiles/file/mowaluri.pdfIn PDF document text
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160a3f2837f099---96910618864.pdfIn PDF document text
- http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/16080917c96fb3---2439742856.pdfIn PDF document text
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7ad0760086---90886714459.pdfIn PDF document text
- http://www.houstonorientalrug.com/ckfinder/userfiles/files/zojivivewovimufud.pdfIn PDF document text
- http://mobilephleb.com/clients/2/2d/2d2188d13063160162e6e2bbcdac547d/File/7515056263.pdfIn PDF document text
- http://ekopaczka.pl/imgbrama/files/rizim.pdfIn PDF document text
- http://fkhd.cz/data/img/xetesebelibebukif.pdfIn PDF document text
- 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_off0000d9d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9D1 | 11144 bytes |
SHA-256: f1784e71b29a9ed4c41842d80e7f2d4c97788eb419fd696ea63e684935dd2e8e |
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font_01_sfnt_off0000f3a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3A0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010bb2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BB2 | 18772 bytes |
SHA-256: 43c9897b81ab791732c21c137080b0b0a8d35442d68a453887e4b6135b02ca9b |
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