MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs, indicating malicious intent. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggests the document is designed to host numerous links, likely for phishing or distributing further malware. The ML classifier and ClamAV detection further confirm its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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 https://catamma.ru/uplcv?utm_term=scurvy+in+adults PDF link annotation
- https://cobaltinc.org/userfiles/file/85681189926.pdfIn PDF document text
- https://mgs-on-track.com/uploads/misc/files/rakigegu.pdfIn PDF document text
- http://papinchess.ru/userfiles/file/24595893224.pdfIn PDF document text
- https://learnrkb.jugalbandiresearch.com/ckfinder/userfiles/files/89258570157.pdfIn PDF document text
- http://khachsansapa.vn/webroot/img/files/rijofumofasekokuto.pdfIn PDF document text
- https://kalimati.in/userfiles/file/vezopudurififab.pdfIn PDF document text
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/161360d806c21f---wosodefajorolopejifije.pdfIn PDF document text
- http://irths.com/upload_files/files/60028181185.pdfIn PDF document text
- http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/jupemen.pdfIn PDF document text
- https://hatinhjobs.com/upload/files/magifebufowimow.pdfIn PDF document text
- http://quincy.pl/ckfinder/userfiles/files/6499981861.pdfIn PDF document text
- http://contrast.no/ckfinder/userfiles/files/83298751041.pdfIn PDF document text
- http://vstarmp.cn/upload/files/20210908_234333.pdfIn PDF document text
- http://www.espace-hotelier.com/ckfinder/userfiles/files/92676754931.pdfIn PDF document text
- https://openkomm.yussfone-crm.com/userfiles/file/95457923707.pdfIn PDF document text
- http://bygreenpure.com/userfiles/file/31706866437.pdfIn PDF document text
- http://riosemarescentrodemergulho.com/ckfinder/files/vanuloviwiwozobufesule.pdfIn PDF document text
- http://www.waetsukai.jp/system/ckfinder/userfiles/files/84704052378.pdfIn PDF document text
- https://renhedc.com/uploads/files/202109231508484634.pdfIn PDF document text
- https://www.xyoaa.org/sites/default/files/files/3248461762.pdfIn PDF document text
- https://karolinanowak.com/userfiles/file/tuladobawoximifajen.pdfIn PDF document text
- https://sportsslife.net/upload/ckfinder/files/90175995325.pdfIn PDF document text
- http://falconfam.com/ckfinder/userfiles/files/kovuloguvimisufu.pdfIn PDF document text
- https://www.theoakshealthcare.com/my_content/js/ckfinder/userfiles/files/41542312205.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bbf2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBF2 | 18804 bytes |
SHA-256: 7c52c02037b5bc71bbb0641f28448296456a0171456eeb611fb314907d5b2cca |
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font_01_sfnt_off0000ecc6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECC6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000104dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104DD | 10464 bytes |
SHA-256: c23fc32a1a643bbdcc8aeb6e31b7ccc8cca7f5766288d49d3feeed866035daae |
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