MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many pointing to compromised WordPress sites or disposable domains, indicating a link farm designed to manipulate search engine results or lead users to malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious link farm attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9946
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://wastran.ru/uplcv?utm_term=exponential+growth+and+decay+escape+room+answer+key PDF link annotation
- http://mastervgtour.by/var/upload/file/87260831605.pdfIn PDF document text
- https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/4d457ohbpgm2pgsbbkel72cdj1/bokomigo.pdfIn PDF document text
- http://marty-triple-m.ch/inhalt/files/69809912391.pdfIn PDF document text
- https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/8b1a6e4e237d86216bfe366522242a99/35762925395.pdfIn PDF document text
- http://bafiti.com/sklep/userfiles/file/95762476935.pdfIn PDF document text
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2049d91ab3---wezija.pdfIn PDF document text
- https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/abac9144ae7cf0e30436dd22c2098a8f/8156490522.pdfIn PDF document text
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2b88ee75d5---14138894119.pdfIn PDF document text
- http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bf99214e4b3---84222807709.pdfIn PDF document text
- http://bizbecho.com/pa/trainstation/uploads/image/file/lepesidatin.pdfIn PDF document text
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160904ab2c0852---xosuvajejel.pdfIn PDF document text
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/ccc5b40b25c1ad110fd690a8a7a7b32c/nelekotifusebufobimi.pdfIn PDF document text
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1608cfdb4e0a14---48831888609.pdfIn PDF document text
- http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608104d29eceb---80811540167.pdfIn PDF document text
- http://hornets88.com/clients/56662/File/48485706976.pdfIn PDF document text
- https://www.jscorporation.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/1609c31c636ad3---85070704421.pdfIn PDF document text
- https://opuntia.eu/wp-content/plugins/super-forms/uploads/php/files/a51990eddd44c65a24ae9edd6b30a761/91386203506.pdfIn PDF document text
- http://ekolojikweb.net/upld/userfiles/file/75157983723.pdfIn PDF document text
- https://signika.pl/Upload/file/4001053633.pdfIn PDF document text
- https://topinsolventa.ro/userfiles/file/30466822815.pdfIn PDF document text
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16070a61c81df3---13419771205.pdfIn PDF document text
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16079b1037f899---43990302901.pdfIn PDF document text
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c93e2a0c5a---38523209093.pdfIn PDF document text
- http://learningkey.org/userfiles/3495595052.pdfIn PDF document text
- https://atcotourismtravel.com/userfiles/file/zewogelomovomagagumezum.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_off0000d860.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD860 | 11340 bytes |
SHA-256: 4b30026d8c52c1ad09178be8d6414282955593541afd9bdaa5ff2beacfc04484 |
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font_01_sfnt_off0000f2b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2B9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010acb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ACB | 17056 bytes |
SHA-256: 453c5b55c7e0944dcdf451e2bd81caed9049ad0cc97c62b2f84118dae26cc78b |
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