MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ClamAV and an ML classifier. It contains a link farm pointing to compromised WordPress sites, suggesting a phishing or malware distribution attempt. The document body is heavily obfuscated and unreadable, but the presence of numerous external URIs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicate a strong intent to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://queure.ru/uplcv?utm_term=water+fasting+for+5+days+results
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607e286843026---kodiwevevekubozefulim.pdf
- https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/19293fcf1024961f6b3ca6b4a7d5d97d/27125114704.pdf
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16071659822938---kirunilujuvasafosugokut.pdf
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3220c38434---73079596138.pdf
- https://rybczewice.pl/userfiles/file/46978156975.pdf
- https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c694c29a5c---86628697391.pdf
- http://deltastal.ru/userfiles/file/24321830732.pdf
- https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/8b5e7eca04c668edaa52cebdd024c46c/wumosez.pdf
- http://centralgiving.com/media/userfiles/file/lozadut.pdf
- http://interel-rus.ru/test/sites/default/files/file/vusipuzagibanujipabower.pdf
- https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/0be6e822109c828450753e2a81334edc/83886081219.pdf
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/16079feace185e---boguk.pdf
- https://razvozka24.ru/wp-content/plugins/super-forms/uploads/php/files/ecd3c53ca393497b30cbfbd3530afb82/98785889447.pdf
- https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/6b17cce41170e5c8a45a3a2da794b267/xokukilebaxibigulabo.pdf
- https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/5gug1a57eklhi7841p6p6986hg/80028285801.pdf
- https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/hpq4ufveeghtpont5f4fme0p6l/64500575906.pdf
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606f68e075729---65021670906.pdf
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/labi59igo47s7v11f0k34uqjfq/dibimerulivena.pdf
- https://nutricionintravenosa.com/wp-content/plugins/super-forms/uploads/php/files/12b4f28edcade0c91dcfccf2b73cf488/25270554807.pdf
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a59b2800e62---65652254723.pdf
- https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/697195aaa8844d4350cac8ae9a442e42/tovegorose.pdf
- http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16077eb2c157d2---xoziwefojukexuz.pdf
- http://contentworks.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606f4bcf492c3---watirarebisuzekezonemosif.pdf
- https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160856c9519b58---50807703929.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f712.bine340ad75f206443dc97e817f0dd2025a7a20152bdec0d0eb797ca81c80d43787 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF712 | 10872 bytes |
font_01_sfnt_off00011031.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11031 | 16792 bytes |
font_02_sfnt_off00012843.binee3ebaa6e0d1fc78a9a82b18e2a0c78080cb85223aa4f98d1c221aa0acb57227 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12843 | 17232 bytes |
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