MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs pointing to compromised WordPress sites and other disposable hosting, indicating a link farm designed to redirect users to potentially malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment that it is part of a phishing or redirection scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
Heuristics 5
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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://crysiq.ru/uplcv?utm_term=exerc%C3%ADcios+sobre+estrelas+constela%C3%A7%C3%B5es+e+gal%C3%A1xias+6+ano PDF link annotation
- https://lecachet.fr/docs/files/58733062718.pdfIn PDF document text
- https://blackknowledge.com/wp-content/plugins/super-forms/uploads/php/files/4342cf09e3f198408dc23477731376cc/bowasalizugamajevokofe.pdfIn PDF document text
- http://aristosaigonhotel.vn/uploads/files/xivunurosamiferotajav.pdfIn PDF document text
- http://sklepjola.pl/userfiles/file/losamimozenixezukejoxivok.pdfIn PDF document text
- http://tomlitkom.ru/ckfinder/userfiles/files/tametar.pdfIn PDF document text
- https://omomediacion.com/wp-content/plugins/super-forms/uploads/php/files/b52c92b13bf185bdfde4b10aef379bd6/79211977169.pdfIn PDF document text
- https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607b5944ee356---soluxotebego.pdfIn PDF document text
- http://laros.cz/UserFiles/file/45476146277.pdfIn PDF document text
- http://centrumbiznesurawicz.pl/userfiles/file/92568417916.pdfIn PDF document text
- https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/f9f8708e03ed1cf727dd5b84e5de9e06/zodofet.pdfIn PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bac948a75ca---sevotadujuzajavonigaler.pdfIn PDF document text
- http://gramercygrand.ru/files/file/49549305630.pdfIn PDF document text
- https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/2575490bc002916dd189a9041de22192/zukinus.pdfIn PDF document text
- http://techbico.vn/uploads/image/files/36836453740.pdfIn PDF document text
- https://www.sacda.org/wp-content/plugins/super-forms/uploads/php/files/tc8li0e7bk9r702c6t24a3h5h4/fofutodupade.pdfIn PDF document text
- http://reklama-kemerovo.ru/files/files/diwivareri.pdfIn PDF document text
- https://www.ccs-corporation.com/ckfinder/userfiles/files/37986806175.pdfIn PDF document text
- http://anhuicrew.com/upload_fck/file/2021-5-2/20210502173007461830.pdfIn PDF document text
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160faff3ae275d---foxudolebozub.pdfIn PDF document text
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/07bdffc7a7851108d22e38dd78fadaad/6454662177.pdfIn PDF document text
- http://www.manorbymajor.com/userfiles/files/bixuvijinat.pdfIn PDF document text
- http://tai-yang.tw/taiyang/upload/file/kaxubu.pdfIn PDF document text
- https://dbjadow.pl/attachments/file/sukoman.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_off00011b20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B20 | 11460 bytes |
SHA-256: 77b701241440f3439fc58ba7b88dc3e82434348800f736bd099d1b55ef793d3a |
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font_01_sfnt_off00013555.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13555 | 21716 bytes |
SHA-256: 7dd5e83c2047619abdae2785082aae0aabe35ec9d3f2ce1c8d64a442cf48ce27 |
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font_02_sfnt_off0001695a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1695A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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