MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, many of which point to compromised WordPress upload directories, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://jyjwqj.com/uploadfile/file///2021052220514090.pdf
- https://polskieplytki.com/wp-content/plugins/super-forms/uploads/php/files/177272282a2f7d9c1540c964d108245a/dunonixikopexejomapizapa.pdf
- http://hillsdale66ersreunion.com/clients/c/c6/c679c52642bc64dd8629b98fb95ccc77/File/fipof.pdf
- http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a2f36e08472---71451263667.pdf
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ac38833b356---24448418966.pdf
- https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/2d260a22806ffae1b9257c8466bd74bc/podero.pdf
- http://musorcentrum.hu/files/article/file/wosuxoxuzesafugogotisivo.pdf
- https://akproauto.com/nbloom/fckuploads/file/sitisutova.pdf
- https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/c4a717d6a3f2409f85142f958bab3251/fabafezifapawutir.pdf
- http://say-international.eu/userfiles/file/rejoduwijazewonoluf.pdf
- https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/e33c313c46bb543ceddfda4a007657fa/55665008658.pdf
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/3dc07c5cd8183ba9b1fc5b8e24da8bbc/2370931276.pdf
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099cdcd53e9e---42848437096.pdf
- http://lucchetta.net/userfiles/files/95426471854.pdf
- https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/033dd3f5fd6cf565f6227c2a9a75c6ed/birizuruwibepirilagipupu.pdf
- http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160e44c43eeb2d---ninit.pdf
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c75cea5432f---42190591075.pdf
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608816f588e55---rivujipolixuvexajekewu.pdf
- http://homeopathyhk.com/files/86260798997.pdf
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160909e252d396---13256414447.pdf
- http://12shio5.com/contents//files/mepoxozov.pdf
- https://mahae.hu/files/files/73716974650.pdf
- https://angkortaxiservice.com/userfiles/file/sidakapaxikotikiluxoxa.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=main+function+of+cerebrospinal+fluid
- 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_off0000e620.bin4b5bb7b95a20bccd5104846c0c1692a26d7a5565fb028c136b1dd843cbbf361e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE620 | 17432 bytes |
font_01_sfnt_off000113a0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113A0 | 16792 bytes |
font_02_sfnt_off00012bb7.bine7d8aa0f9260c9bdbdc2917d0a6c6b69fbb864e4fcda140c4997c6fa041bdcb7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BB7 | 10848 bytes |
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