MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a malicious PDF, as confirmed by ClamAV and ML classification. It contains numerous external links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a phishing or malware distribution campaign. The PDF's structure and embedded links indicate it is designed to redirect users to potentially harmful external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://synerhu.ru/uplcv?utm_term=introduction+to+energy+worksheet+answer+key PDF link annotation
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/rmh365k0v5d6rcb1ihhar689ak/21966774190.pdfIn PDF document text
- http://medob.org/SITE/files/editor/file/63612806734.pdfIn PDF document text
- https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160a05efd2d4cc---90276055816.pdfIn PDF document text
- https://actaviaserica.org/board/file/files/golamedarexusobadevuf.pdfIn PDF document text
- http://brandnewgoods.net/userfiles/file/45157070566.pdfIn PDF document text
- https://machnhaduong.com/images/uploads/files/tojalopebavodeguwijigir.pdfIn PDF document text
- http://eakqshop.com/ckfinder/images_store/files/33865806254.pdfIn PDF document text
- http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/c314a1fcde0cbddf19236115608a3acd/32582854306.pdfIn PDF document text
- http://innotec-industrie.be/userfiles/file/60659172710.pdfIn PDF document text
- http://bezagsecurity.cz/userfiles/54350208174.pdfIn PDF document text
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160aca81171de3---rokujimepiraturen.pdfIn PDF document text
- http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607287fdc1340---16797702194.pdfIn PDF document text
- https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16096dd81cafc5---11186006453.pdfIn PDF document text
- https://poolpoint.be/uploads/file/voxilebonemepojudu.pdfIn PDF document text
- https://businessservicesuk.com/userfiles/file/34829102594.pdfIn PDF document text
- https://alshamiltrading.com/alshamilfiles/file/zalufikitaguvivef.pdfIn PDF document text
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/8e6df809ca5aade596efd67d67e1eece/wevodefi.pdfIn PDF document text
- https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/f90c6c77f169bab3183f4056696bccfc/gufiluvafupijokiwez.pdfIn PDF document text
- https://polnische-zaune.de/userfiles/file/63637124465.pdfIn PDF document text
- http://hurtglass.pl/upload/file/fugezupesu.pdfIn PDF document text
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/160a300547eef2---98632800373.pdfIn PDF document text
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e27f55fd1e---80273436709.pdfIn PDF document text
- https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f004a8ebd5---gukikotitinij.pdfIn PDF document text
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/n18q8n9lbpki37eb5cehgibdgg/rebapoweloji.pdfIn PDF document text
- https://www.deuba.info/wp-content/plugins/super-forms/uploads/php/files/p38ntvmurdoou0d535hao2do64/36961242450.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_off0000f597.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF597 | 10944 bytes |
SHA-256: ada2f3ad266984eb9e9c466638d0da40f3f4eda3aa25aaedf7c3250ea27d92ee |
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font_01_sfnt_off00010ed0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ED0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000126e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126E2 | 17660 bytes |
SHA-256: b257c0939d25387e573288b9fa2aa6211dbeea5c61b760152104e51017f17e9e |
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