MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which are identified as part of a link farm hosted on potentially compromised or disposable domains. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware delivery through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://crewmak.ru/uplcv?utm_term=clean+master+real PDF link annotation
- http://police8coop.com/UserFiles/file/sevozutijatuwok.pdfIn PDF document text
- https://ikitellirezistans.com/upload/files/vikujufi.pdfIn PDF document text
- https://walnutcreekguide.com/wysiwygfiles/file/reginokizorasakesapij.pdfIn PDF document text
- https://mbamantra.com/ci/userfiles/files/vafimemikazenorununenup.pdfIn PDF document text
- http://chinahongji.com/d/files/julax.pdfIn PDF document text
- https://www.tulsarad.com/my_content/js/ckfinder/userfiles/files/34553650256.pdfIn PDF document text
- http://sofia-es.tokyo/yamituki-n/uploads/files/duxurovizupurajosi.pdfIn PDF document text
- http://fullcolorspandoeken.nl/userfiles/file/kuxibuwibiketelozo.pdfIn PDF document text
- http://kovacsoltvaskerites.hu/images/file/kutotat.pdfIn PDF document text
- http://beta-rc.com/upload/files/75841227191.pdfIn PDF document text
- http://pincesorvarshop.hu/editor_up/zolomaxag.pdfIn PDF document text
- https://marlschuz.com/userfiles/files/xelanuxod.pdfIn PDF document text
- https://shturnev.com/files/foFKED/file/vatijodolanarij.pdfIn PDF document text
- http://dreiseengrundschule.de/files/25195054157.pdfIn PDF document text
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/161375255b706a---loxupadarijaxutedizetitux.pdfIn PDF document text
- http://nexxosrealty.com/userfiles/files/41727095028.pdfIn PDF document text
- https://faresaldabbous.com/uploads/file/19502154283.pdfIn PDF document text
- https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/6240d476713b304c32fc5f42cd7e09cd/35346264234.pdfIn PDF document text
- http://kayapaliinsaat.net/file/leriwetikoxupido.pdfIn PDF document text
- http://coca-colalife.eu/userfiles/file/wenatozixiwiv.pdfIn PDF document text
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1613b2f6d208bd---87683149807.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_off0000b108.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB108 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c91a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC91A | 17236 bytes |
SHA-256: f8cee663377844f5bebc3c77f7bf7d7488ee20306ef2218a0d11c6929317dad6 |
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font_02_sfnt_off0000f576.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF576 | 10088 bytes |
SHA-256: f3c47f7fad47757ab68689698bdb304e77850e4a7a81827a715a23768169b862 |
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