MALICIOUS
132
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript and a large number of external links. Many of these links point to compromised CMS uploads or disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier suspicious score 0.3110
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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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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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 https://synerhu.ru/uplcv?utm_term=wwe+2k20+ppsspp+download+100mb PDF link annotation
- http://wittymall.com/multimedia/userfiles/file/17530998264.pdfIn PDF document text
- http://ruihuitax.com/files/file/65975499768.pdfIn PDF document text
- http://theartofdesign.nl/ckfinder/userfiles/files/74166979423.pdfIn PDF document text
- http://thriftstorewebsites.com/flash/thriftstorewebsites.com/file/jazodatedez.pdfIn PDF document text
- https://keiba-like.biz/js/ckfinder/userfiles/files/60624212032.pdfIn PDF document text
- http://king-tableware.com/uploads/files/202109160416261840.pdfIn PDF document text
- http://dglytbt.com/upfolder/e/files/20210918221008.pdfIn PDF document text
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/vurirazakubarakukotazikej.pdfIn PDF document text
- https://sofupingame.net/calisma2/files/uploads/rinozumogo.pdfIn PDF document text
- http://hezhengwy.com/js/fckeditor/editor/filemanager/connectors/php/connector.phpUpFile/202109/file/20210929_061956_162.pdfIn PDF document text
- http://autosoftware.company/autoresponders_images/files/zubesojazupexal.pdfIn PDF document text
- https://sim2007.com/files/36731715133.pdfIn PDF document text
- http://dijladentalcenter-qa.com/userfiles/file/10802431633.pdfIn PDF document text
- http://fotocaroli.it/userfiles/files/96680989484.pdfIn PDF document text
- http://coaching-scolaire.net/userfiles/file/peruzofij.pdfIn PDF document text
- https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/a7bdff584ec0de0426eba6e201c43636/75552296617.pdfIn PDF document text
- https://magic-ray.shop/uploads/files/xekatotakamufasotozob.pdfIn PDF document text
- http://www.ssc-ras.ru/ckfinder/userfiles/files/82242622966.pdfIn PDF document text
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/95fc4ee0ebc185ac1c486bcc926599fe/jisumaririmubixiwo.pdfIn PDF document text
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/1613d407929a3b---vinegivofalaponusogetasan.pdfIn PDF document text
- http://carbonelite.ru/file/lewarideriluguguredotub.pdfIn PDF document text
- https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145c42d9846f---10620004052.pdfIn PDF document text
- https://kitapkaplama.com/upload/ckfinder/files/81474644003.pdfIn PDF document text
- http://tabouligrill.com/ckfinder/userfiles/files/6356899926.pdfIn PDF document text
- http://artospace.com/pics/file/dowalik.pdfIn PDF document text
- https://gonguyenkhoi.vn/upload/files/69481987810.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c174.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC174 | 10868 bytes |
SHA-256: 109739595812d3ca4375e65a482c143ea8e77d3e02db796f26ab0c342c92ac2b |
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font_01_sfnt_off0000da79.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA79 | 19668 bytes |
SHA-256: 4574a4e63338da9c43d44a079225f946400650e94dceddca18e113ef70b9d598 |
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