MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains numerous embedded URLs pointing to compromised WordPress sites and other disposable hosting, suggesting it functions as a link farm. The primary purpose appears to be directing users to malicious content or phishing pages, likely delivered via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://ketchas.ru/uplcv?utm_term=learning+family+members+in+english+worksheets
- http://brilsports.ro/userfiles/file///dewuwegofuvekato.pdf
- https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/d096b38c6de88604183fa94be347eb8d/javiravowufabitaronarag.pdf
- http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/1baf71f5d8398fc114d7a7ab1d256b70/12955282092.pdf
- https://likeevent.it/writable/public/userfiles/file/jomevibiwopewulolegopa.pdf
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/160ff064705739---92343725236.pdf
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160d5e183083aa---94563242375.pdf
- https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d75c5e42aa2---94014356250.pdf
- http://larrysiegellaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/selurujogi.pdf
- http://dabaizhongxue.com/upload_fck/file/2021-5-21/20210521210505162497.pdf
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/6j7a35n06d0r39qquc13rh4bor/94884875743.pdf
- https://balaji-technology.com/userfiles/file/nafexisarupivejo.pdf
- http://russia-ex.com/images/blog/file/60752002457.pdf
- https://stehovani-ostrava.cz/static_pages_files/file/48429587291.pdf
- http://portalpr-b2b.es/img/user///file/_0358563001625538679.pdf
- https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/1606caf6319732---60056468186.pdf
- http://xn--90aoj0agf7cq.xn--p1ai/uploads/files/nosekuzutetivadave.pdf
- http://cellesekorea.com/ckupload/files/32223416614.pdf
- http://pobierzplik.pl/uploads/files/14361630426.pdf
- https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a948d582162---59990567630.pdf
- https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/bug23a1cncpma4l7dham9kdsqg/3350070171.pdf
- https://lifo-sea.com/ckfinder/userfiles/files/dilufojigaxetesisomugilud.pdf
- http://austral-immo.com/userfiles/files/64880597103.pdf
- http://kiemdinhcan.com/Images_upload/files/45032177893.pdf
- http://kstarsmall.net/userfiles/file///25172955251.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_off0000d1cd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1CD | 16792 bytes |
font_01_sfnt_off0000e9e4.bin6c134a2bc2967d698f05a99b7ca8ce05d96ce2475b732892e56684e930d514a2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9E4 | 11052 bytes |
font_02_sfnt_off0001037b.bin5c50f589a8dc5ababcaac8b1990e35377077f24f4fc61f925c7e89963cf59624 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1037B | 19696 bytes |
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