MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress sites and other disposable hosting, suggesting a phishing or malware distribution lure. The PDF structure itself appears to be a link farm, designed to redirect users to external, potentially malicious, URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9950
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://cructi.ru/uplcv?utm_term=win+iphone+x+free+spin PDF link annotation
- http://stigstudiotecnico.it/userfiles/files/14936897012.pdfIn PDF document text
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/8330950a8165954858799eaab0690ec4/jibezamerusodosivalobavo.pdfIn PDF document text
- http://herbwaterthailand.com/userfiles/files/momuvowofalosupuwagof.pdfIn PDF document text
- http://www.mezmat.ru/ckfinder/userfiles/files/24028559368.pdfIn PDF document text
- http://barudan.hk/UploadFile/file/20210924222733048.pdfIn PDF document text
- http://romengo.com/ckfinder/userfiles/files/badovejojifew.pdfIn PDF document text
- https://stka.gr/ckfinder/userfiles/files/jokajexasuwadufoxajufilef.pdfIn PDF document text
- http://prograsifkalip.com/files/xexowojawi.pdfIn PDF document text
- https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/484dd75a776f315a0016586bbf48cb0e/41717965339.pdfIn PDF document text
- https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d770dc6cd2---42236422251.pdfIn PDF document text
- https://ecoolteh.eu/galeria/file/24983622457.pdfIn PDF document text
- https://proetcontra.hu/userfiles/file/tibalep.pdfIn PDF document text
- http://pbhdom.eu/userfiles/file/47321670822.pdfIn PDF document text
- http://svsteinfurth.de/radsportfiles/file/wulinonidubeme.pdfIn PDF document text
- https://www.scmsgroup.org/ckfinder/userfiles/files/zominemuzugamupisi.pdfIn PDF document text
- https://safe-international.com/userfiles/file/69133288751.pdfIn PDF document text
- https://srilangkapools.com/contents/files/nefopokenijovugobi.pdfIn PDF document text
- http://dgelc.com/userfiles/file/20210914190447.pdfIn PDF document text
- http://mrhobbscoffee.com/images/uploads/file/69016152546.pdfIn PDF document text
- http://lamekatus.ee/uploads/ckeditor/files/zirovigiranekapi.pdfIn PDF document text
- https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/16137c26930c9d---zabal.pdfIn PDF document text
- https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/bavokl3bjgjql27dhlse9jgrbc/66938799257.pdfIn PDF document text
- https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/00603995b650a7ecc974f2c03f36cd21/vanapetubivojomabapiw.pdfIn PDF document text
- https://eingangrad.ch/userfiles/files/78707880825.pdfIn PDF document text
- http://hoangnamjsc.com/upload/files/xolotapuzaxusapudewotefid.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_off0000b234.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB234 | 10244 bytes |
SHA-256: b0a2561ab6692836458a608f572d1196eba8cf7dca38483a14c46e2aa83316f1 |
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font_01_sfnt_off0000c923.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC923 | 17956 bytes |
SHA-256: 81ff1cf15264b56fce36d6b19611e93be5b726ca47b61b5ac89fe8723e80a9a8 |
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font_02_sfnt_off0000f72f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF72F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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