MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and a large number of external URIs, many of which point to compromised WordPress sites or disposable hosting. These links form a link farm designed to redirect users to malicious PDF files, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9823
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://all-pass.com/folder/editor/file/63443069570.pdf
- http://sk-massimo.com/js/upload/files/zomokekadajefo.pdf
- http://jointrilogy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fe2f45cd27---jasaremixefodevowiwet.pdf
- https://vresponse.net/userfiles/file/33196587663.pdf
- https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/ce927e345575a0cc7702df491f3f773e/nipukiko.pdf
- http://ccspatti.org/userfiles/file/vegarunivuki.pdf
- http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160750e1dacc38---86920477921.pdf
- https://ferado.vn/userfiles/file/junedupanelazetetu.pdf
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1607ffe2e7914e---25628382323.pdf
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/549f1f1a2f17a487cdc163a9b2398ea7/32962504998.pdf
- http://sujitonweb.com/userfiles/files/poduganupulodenif.pdf
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/052dadcac6ca6ffd871e69b4941f14ce/newevitawekiwovupigawekad.pdf
- https://tenekedjieva.com/uploads/file/kufixatarep.pdf
- https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/160723108c455c---82539461230.pdf
- http://polskienarty.pl/data/aktualnosci_imgs/file/61142904625.pdf
- https://amrapalispot.com/userfiles/file/nimusewadizepezalif.pdf
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/46e6e0b4d7c647dec48da79303f21374/xufeva.pdf
- http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/48ec57808614d1d44b2e2a211a1e80fb/38188788188.pdf
- http://www.anjhimayath.com/upload/file/11402873945.pdf
- https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a57bf4f1f1c---kuvoj.pdf
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/160745fad2d555---wodenufukabopupalufuxug.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=god+bless+you+in+bengali
- 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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_005_off0001955b.bin3ff97c512c11727f7796bd615ded09a30cd203de5ce0661ec2e63a94816655df |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x1955B | 22296 bytes |
font_00_sfnt_off00010364.bin796c854eed33a1350a77ce96dda0eb1ecccf8ddbc917c374a0087418d9939e6f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10364 | 6092 bytes |
font_01_sfnt_off000118f4.bin76690dd4b56bc65b9ef29c778107db43e8128463056c2afc30149ff2dc6c2b60 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118F4 | 43160 bytes |
font_02_sfnt_off00017d35.bin0097afce45bfc6363a48e9b142c73c2b99c4b4f2a5397dc8db02fe73bdf67940 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17D35 | 10616 bytes |
font_04_sfnt_off0001be37.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1BE37 | 16792 bytes |
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