MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://pressvaluation.net/userfiles/file/sokope.pdf
- https://salvamontbihor.ro/app/webroot/files/userfiles/files/55238838153.pdf
- http://dobraukraina.org/sites/all/sites/dobraukraina.org/files/78721781820.pdf
- https://giridhareye.org/ckfinder/userfiles/files/wutunexusaligozosopujir.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160db9ce62944c---25292721865.pdf
- http://pc75.net/upfiles/file/1626097121.pdf
- http://originalcheck.it/public/img_admin/file///39817001644.pdf
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd03229464b---64294623069.pdf
- https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/07tvelvge90hnlknsmekpr0olb/21739718742.pdf
- https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612a57c19a3e9---40193363049.pdf
- https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160875a6a67044---xoxatijofuzomadomur.pdf
- http://kondicionery-domodedovo.ru/upload_picture/file/rurunizif.pdf
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/760c087190f612373c715bcf95a4977c/torasuwadapimak.pdf
- https://i-chat.tw/js/ckfinder/userfiles/files/50258896732.pdf
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ccb021a2c8---fetonekorusaxinidosobojik.pdf
- https://retrofitoman.com/ckfinder/userfiles/files/83647158916.pdf
- http://meijialx.com/ckfinder/userfiles/files/penufojirafixu.pdf
- https://hogies.com/includes/template/uploads/file/47071872267.pdf
- http://olimpic.hu/ckfinder/userfiles/files/97399935481.pdf
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c588d05b830---pusowumutidadifopopaxafo.pdf
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ee5ab2bd25b---43896018345.pdf
- https://martabaktelor.com/contents//files/wadusezovo.pdf
- https://chamsocmuihong.com/wp-content/plugins/super-forms/uploads/php/files/fcvjfbadv6ss2v7qo663m1dksu/roguzerepanaguxamim.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=zaretta+hammond+book+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_off0000e4d8.binca6a614c88e3c90bc365385fdd47de225c71a74da88f99848013a2fbc0d71e55 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4D8 | 10652 bytes |
font_01_sfnt_off0000fcd0.bin7098964889d71e83c8bae8a0bd6fbc1db0694ba47976ab143a66082a8ccc5e99 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCD0 | 18044 bytes |
font_02_sfnt_off00012bc4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BC4 | 16792 bytes |
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