MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains a large number of external URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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=nuclear+physics+books+by+indian+authors+pdf PDF link annotation
- https://martabaktelor.com/contents/files/kikulew.pdfIn PDF document text
- http://peter-scherer.de/userfiles/file/99363504270.pdfIn PDF document text
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/161477723dda29---89413011082.pdfIn PDF document text
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/16148aeef662c6---manifap.pdfIn PDF document text
- http://skupka23.ru/upload/m/fotexudaf.pdfIn PDF document text
- https://goodnest.info/tctt/sites/aaa/file/89689287865.pdfIn PDF document text
- http://ntvietnga.com/upload/files/55838678758.pdfIn PDF document text
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161429ad27b15b---75074719494.pdfIn PDF document text
- https://gaziemirkentkonseyi.com/upload/files/65702407599.pdfIn PDF document text
- http://kiapelhrimov.cz/UserFiles/File/direlewogawewoxot.pdfIn PDF document text
- http://mygotour.com/FileData/ckfinder/files/20210906_667A8B417F74958E.pdfIn PDF document text
- http://ms-beauty.com/ckfinder/userfiles/files/99366259445.pdfIn PDF document text
- https://marikakozmetika.hu/editor_up/59356354144.pdfIn PDF document text
- http://mskgroup-spb.ru/upload/file/58592621769.pdfIn PDF document text
- http://loadcell.vn/Images_upload/files/nufejowalonil.pdfIn PDF document text
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140286a8dd05---44576601693.pdfIn PDF document text
- http://thibidi.vinadesign.info/uploads/images/files/8017801516.pdfIn PDF document text
- http://polymer-optix.de/userfiles/file/79939781455.pdfIn PDF document text
- http://rent-lease-no1.com/userfiles/file/20210919194433.pdfIn PDF document text
- http://zjnep.com/ckeditor/ckfinder/userfiles/files/85431360380.pdfIn PDF document text
- http://zzquansu.cn/d/files/76339209588.pdfIn PDF document text
- http://mweb.cz/images/file/60360604359.pdfIn PDF document text
- https://www.hosotte.com/ckfinder/userfiles/files/66817092215.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_off0000d545.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD545 | 11140 bytes |
SHA-256: 33c287f795a4a4c66a8ca333f4e86f6b6c19af7352940503bf4b32794f225f31 |
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font_01_sfnt_off0000ef0e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF0E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010720.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10720 | 17776 bytes |
SHA-256: 0b305b7e49e3c486a34d60a5908c622703dea0cf8c525e38ff16f80acbd3fcc5 |
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