MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, a common technique for executing malicious code within documents. The heuristic firings indicate this JavaScript is likely used to redirect users to external URLs, as evidenced by the numerous unknown-reputation URLs extracted. The ML classifier and ClamAV detection strongly support the malicious nature of this file, classifying it as a phishing or trojan variant.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://www.prshots.com/ckfinder/userfiles/files/rejale.pdf In PDF document text
- http://js-space.de/userfiles/file/42875479232.pdfIn PDF document text
- http://battlegrouponline.com/app/webroot/js/ckfinder/userfiles/files/rufon.pdfIn PDF document text
- https://wroclaw-effatha.pl/grafiki/file/30295053959.pdfIn PDF document text
- https://delcinfo.ru/img/files/files/41474724477.pdfIn PDF document text
- https://aprilboya.com/userfiles/file/judujazodokamimuxurepalin.pdfIn PDF document text
- https://lexcochoralsoc.org/demo/lccs/beta/userfiles/files/fadisinidezuxusiwiw.pdfIn PDF document text
- https://valgott.com/images/userfiles/file/bixunurexulo.pdfIn PDF document text
- http://studiopol.com/userfiles/files/piluxubalajapotaxoxilas.pdfIn PDF document text
- http://canoeing.by/pics/files/22899224922.pdfIn PDF document text
- https://mobilaide.com/upload/editor/file/xirifixubajuvesozimi.pdfIn PDF document text
- http://mothertheresapublicschool.com/userfiles/file/36479395021.pdfIn PDF document text
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613395352e132---33314957900.pdfIn PDF document text
- http://laptopplus.be/app/webroot/files/userfiles/files/jokojatadugibitizim.pdfIn PDF document text
- http://studioingtassinari.eu/userfiles/files/redebamamixarukilu.pdfIn PDF document text
- https://yarpaket.ru/userfiles/file/21985719916.pdfIn PDF document text
- http://fasson.vip/images/editor/files/10771759027.pdfIn PDF document text
- http://dispensapertutti.com/userfiles/files/fupazofapizebonef.pdfIn PDF document text
- http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/16141eda5014a1---93212403753.pdfIn PDF document text
- http://heldermusic.nl/ckfinder/userfiles/files/xiwajujonizagusawon.pdfIn PDF document text
- https://alstar.uz/images/shared/file/namebiworotubexaje.pdfIn PDF document text
- http://videocycling.info/files/file/72983632752.pdfIn PDF document text
- http://cn-biyoute.com/d/files/mirur.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=berserk+deluxe+volume+1+pdfPDF link annotation
- 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_off0000cf23.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF23 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e735.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE735 | 17780 bytes |
SHA-256: 9d9efb4cb1c3e5e07130b4359b8481afd5d24d12a064379403f0eecdcd50da31 |
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font_02_sfnt_off0001159e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1159E | 10668 bytes |
SHA-256: 49f7c312d76e47d1213d4983782fe6ffd9dc131b381bd720fe56ad54c7385045 |
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