MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous URLs, many of which point to compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the document is structured as a link farm on potentially untrustworthy domains. The embedded JavaScript likely facilitates the redirection to these malicious sites, contributing to a phishing or malware distribution attack. ClamAV detection further confirms its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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://neonatal-surgery.ru/userfiles/files/22412308097.pdf
- https://madhubanindiancuisine.com/nbloom/fckuploads/file/pumudo.pdf
- http://demo-jesma.shopcloud.es/ckfinder/userfiles/files/jepimiluzo.pdf
- http://goldsunjsc.com/upload/files/jawerinexebolapim.pdf
- https://agronlogistics.com/userfiles/files/91774066641.pdf
- http://businessvaluationapp.com/fck_files/file/pubufopu.pdf
- https://bio-obst-und-gemuese.de/userfiles/file/bimixabasavumapeb.pdf
- http://christopherspubandgrille.com/userfiles/files/99792638787.pdf
- https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/16155a3e050ddb---danowimimuku.pdf
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/161464bcb7c400---bunujaxulitutaxuke.pdf
- https://barcelonacentromedico.es/files/galeria/files/35737669119.pdf
- https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/856bc216c79eb95d163a9f19b1c45520/66946480789.pdf
- https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/0dc011a55e267808ee4c0a649200ed05/pigebatuxazeginogis.pdf
- http://gshosnab.ru/userfiles/file/6940899002.pdf
- http://wuyioutdoor.com/userfiles/file/lodajamunojiviravosunij.pdf
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/ovhd1974un1bajc66ro49blsg1/ruzojufibirinaxuzores.pdf
- https://molecult.metallo-tests.ch/sites/web/upload/files/31562376817.pdf
- http://brenno-tojestto.pl/userfiles/file/wedosiximifip.pdf
- https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/161357650d5b66---jebuwuxapikezidu.pdf
- http://wolfpackbasketballacademy.com/content_docs/32771025764.pdf
- https://moveo-sport.pl/userfiles/file/guvoxunogijivafifofoti.pdf
- http://rama-sp.com/rama/webroot/js/ckfinder/userfiles/files/88178174316.pdf
- http://gradn.ru/uploades/fckeditorfile/nifojojularujulosikigase.pdf
- https://popa.com.br/wp-content/plugins/super-forms/uploads/php/files/e356ade378efe1fc6581f661b40b8004/57105340455.pdf
- http://vijyaiprismcrm.com/userfiles/files/47656427589.pdf
- http://cjmfgxfollow.morefriendship.com/upload/files/xidomepulumufutezigap.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=find+the+derivative+of+tan+x+from+first+principle
- 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_off0000bccd.bin8a4dfc119bf55415268532ff3485cd70d3e0cb606dde54bbbc495794936dd8b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBCCD | 20068 bytes |
font_01_sfnt_off0000f08b.bine919f16fb2fa5a5c9c3869c9811ef1f13d587b5788c3a96c5aef0345f46000d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF08B | 11032 bytes |
font_02_sfnt_off00010a06.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A06 | 16792 bytes |
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