MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external websites, many of which are hosted on compromised WordPress sites or disposable domains, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, but the presence of numerous suspicious URLs indicates a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://audit-advisers.com/userfiles/file/tuzafesidezowefetunenima.pdf In PDF document text
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608c7299bf167---zagarolidurugava.pdfIn PDF document text
- https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/424981860aecb72cb5e12eeba833afd6/71924409138.pdfIn PDF document text
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c2c3fd833e8---kuziduxelogebudej.pdfIn PDF document text
- http://alphasigmaoverseas.com/userfiles/file/zuxuxiwezobomuvixeboju.pdfIn PDF document text
- http://growlink.biz/userfiles/file/85524023851.pdfIn PDF document text
- https://davebakeragency.com/wp-content/plugins/super-forms/uploads/php/files/de3e8849c10ccefce5171deb0cd061f0/29614627309.pdfIn PDF document text
- http://bryanhigh78.com/clients/72554/File/20048854908.pdfIn PDF document text
- https://bbgpiti.com/userfiles/files/tirixixukifutexokaviros.pdfIn PDF document text
- https://marciasmithconsulting.com/wp-content/plugins/super-forms/uploads/php/files/3b1625595e3ce651ac6f08e1ce2f96ed/83938650538.pdfIn PDF document text
- https://estigotours.com/wp-content/plugins/super-forms/uploads/php/files/878f5328f0240497b94a66bd61dffc11/mawixufo.pdfIn PDF document text
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adcbb6958ba---goroso.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/412e14035d26e15bee7358fe6a38cd81/mokugemukojenura.pdfIn PDF document text
- https://reitinguok.lt/userfiles/file/30503325023.pdfIn PDF document text
- https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094b3314dad9---lalapewagimuwaxosuso.pdfIn PDF document text
- https://www.ideaklinikankara.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073bc7f8adef---fiwiwuworowegajere.pdfIn PDF document text
- https://muzeumkonstancina.pl/attachments/file/3868954881.pdfIn PDF document text
- http://codemessaging.net/ckfinder/userfiles/files/wujipesatobajatowale.pdfIn PDF document text
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160702e36d34c6---54574493266.pdfIn PDF document text
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084c408e5bd7---movumowasegurosijibufuled.pdfIn PDF document text
- http://www.corazondelsol.es/ckfinder/userfiles/files/burebetoduvoxudedegasib.pdfIn PDF document text
- https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f2c0b36aad---82008551688.pdfIn PDF document text
- https://ancoraeducacion.com/images/xurek.pdfIn PDF document text
- https://morabia.fi/images/file/11278956821.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=financial+management+time+value+of+money+pdfPDF link annotation
- 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_off0000e883.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE883 | 10952 bytes |
SHA-256: c82bbad24530cca106636e573e26f69e25861de7b693e4999d0584fb02a8a806 |
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font_01_sfnt_off000101b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101B3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000119c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119C5 | 18660 bytes |
SHA-256: 68b995aca927960d21edd20182064324788cae1b67f146bee4a669809b6c3685 |
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