MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous external URIs and is identified as a link farm, with many links pointing to compromised CMS uploads or disposable hosting. The primary function appears to be directing users to potentially malicious external websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://infrive.ru/uplcv?utm_term=saxon+phonics+and+spelling+k+pdf PDF link annotation
- https://termoformat.md/img/files/nesofedubopivanidozabumu.pdfIn PDF document text
- http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/16087694248f82---49619183792.pdfIn PDF document text
- http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/ccda511b56cba5bb6d04fd3f9bbc92db/79496945162.pdfIn PDF document text
- http://chothuexehochiminh.com/userfiles/file/59978607328.pdfIn PDF document text
- http://irk-yoga.ru/upload/files/92747180763.pdfIn PDF document text
- http://ippon.lv/uploads/File/xexofudapaxijofenalenufo.pdfIn PDF document text
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609d57d2cc2a5---67733159631.pdfIn PDF document text
- http://altelaw.com/uploads/image/file/74327974205.pdfIn PDF document text
- http://cnex.cc/images/blog//file/23852730178.pdfIn PDF document text
- http://melly-incendie.fr/img_db/54456989955.pdfIn PDF document text
- http://baovephuongtroi.com/vietkiendo/upload/file/70635507571.pdfIn PDF document text
- http://bajajsports.com/userfiles/file/wediwinulobagijipili.pdfIn PDF document text
- https://stiff.pl/ckfinder/userfiles/files/82508172805.pdfIn PDF document text
- http://rauvuonsach.com/images/uploads/files/85075229310.pdfIn PDF document text
- https://cvssteelex.com/ckfinder/userfiles/files/vufizetazisiwububasusanu.pdfIn PDF document text
- https://semagro-msw.ru/pics/images/file/68063469360.pdfIn PDF document text
- http://www.kyousei-fukushi.or.jp/system/ckfinder/userfiles/files/xibisabasugeregol.pdfIn PDF document text
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bc184b17519---vibukojomusiju.pdfIn PDF document text
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/019aea635a9aa0cb9e549037d65e18d9/mimusisuseliper.pdfIn PDF document text
- https://feldmann-spedition.de/pics/userfiles/file/26277959647.pdfIn PDF document text
- http://lctrading-gmbh.com/ckfinder/userfiles/files/natani.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_off0000cb5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB5E | 18208 bytes |
SHA-256: 8c72fd082b31bb98fd45269fafeb2e9585da27104a9ac6cc7db0c2d43163764e |
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font_01_sfnt_off0000fa98.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA98 | 10972 bytes |
SHA-256: a3a362fd6dde98f189f50106080c35269a2751d2df335357a2762f175dc57c21 |
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font_02_sfnt_off000113bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113BD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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