MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous links, many pointing to compromised CMS uploads or disposable hosting, suggesting it functions as a link farm. The embedded URLs are likely used to redirect users to malicious content or phishing sites, potentially for SEO manipulation or to distribute further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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://amoy-art.com/Upload/file/48018916407.pdf
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/a5f987fe865709d45e7294a0b7dcf462/52581434715.pdf
- https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/llabhdfki5a20etrlglfuv0cbe/22555701033.pdf
- https://bilegt.mn/userfiles/files/xadebukurexuwima.pdf
- https://mziagroup.com/wp-content/plugins/super-forms/uploads/php/files/fp3iob5m5oodldlutrimihh8nh/69034096331.pdf
- http://samuiluxurytravel.com/Uploads/file/pudikimejubuwemarak.pdf
- http://amexeuro.com/an3_Uploads/file/lekojalidimadowavibimekuf.pdf
- https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a7d310b64d4---venenudaxa.pdf
- https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/5c6d858e0810699b4a36669ca4fb5347/80101235726.pdf
- http://infinijewelry.com/userfiles/file/76652804273.pdf
- http://rainbowcaterers.in/userfiles/file/50836086593.pdf
- https://rubin2000-distribuitorshop.ro/userfiles/file/47937466931.pdf
- https://noelex22.org/userfiles/file/35178725491.pdf
- https://grancom.by/upload/docs/kurabugafavigeperow.pdf
- http://satakantaresort.com/user_img/files/6496699097.pdf
- http://buckleyfamilyofdarling.net/clients/0/01/017bf228c8331327bdfb67b1798bff80/File/82078603448.pdf
- http://marinapogon.pl/upload/file/ramaraguxomizinopuwedu.pdf
- http://titadoorbinhduong.com/upload/files/zolivimamilamubanexototuw.pdf
- http://aescantabria.es/upload/fckeditor/file///73099379419.pdf
- https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611ae75195b55---zawepukiliz.pdf
- https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/fidaoa7uch15fobsg6dfv7i0bo/dibijobelugomezelaw.pdf
- http://markone-tools.com/upload/files/8395399021.pdf
- https://aviseco.ro/userfiles/file/fumijuxegumo.pdf
- http://musicupclose.com/clients/f/f7/f7c291dfb329fbc33054893077acf627/File/99924536947.pdf
- https://alakharia.com/public_html/userfiles/file/tevapamasopinilusedozi.pdf
- http://ippon.lv/uploads/File/fojilidipevow.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=advantages+of+prefabricated+construction+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_off0000dd7d.bine198b9259ab511fcf7eaf62c3ccad68698ded7769057a5a51ded3e9840dbdc4e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD7D | 11036 bytes |
font_01_sfnt_off0000f6f3.bin46b620b189ccc1e80d91b5d2a7bb83a254206935858474af1e889e52ec57be35 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6F3 | 17116 bytes |
font_02_sfnt_off000122ea.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122EA | 16792 bytes |
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