MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code. The heuristic 'PDF_JS: Embedded JS stream' and the ML classifier output strongly indicate malicious intent. The numerous external URIs, including those hosted on compromised CMS platforms, suggest the PDF is part of a link farm designed to redirect users to malicious sites, likely for phishing or malware delivery.
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 https://crewmak.ru/uplcv?utm_term=games+using+phone+as+controller
- http://www.gieskestukadoors.nl/ckfinder/files/files/92418270135.pdf
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/16130052079b83---32217223780.pdf
- http://hrdiborice.cz/erucom1/files/files/67149624408.pdf
- https://guenangequitation.fr/www/site/js/ckfinder/userfiles/files/56600878305.pdf
- https://sagarexpress.com/userfiles/file/13304344621.pdf
- http://portaldo.eu/contenuti/upload/file/lupuribanidirawosadorano.pdf
- http://speakingaboutnetworking.com/ckfinder/userfiles/files/20437938686.pdf
- http://sungwoo-n.com/userfiles/file/25805648399.pdf
- https://gangnampools.com/contents/files/54879131150.pdf
- https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/bf57b9876dc5c903049912d86af206ad/70304368576.pdf
- http://ngoinvest.com/uploads/ckfinder/files/jonokefabakezoru.pdf
- https://olterus.net/contents/files/ramujitisut.pdf
- https://distriparkbotlek.nl/userfiles/files/pavenogesuropesolifekol.pdf
- https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/5df96521b8eae833f1dc85cfeaf03c52/jevadokapexudaxesevinamim.pdf
- http://musikpark-live.de/userfiles/file/jorewiputuwosafox.pdf
- http://ajtoablakcentrum.com/_user/file/16480721066.pdf
- http://tms-technology.com/ckfinder/userfiles/files/36809562023.pdf
- http://konakelektrik.com/userfiles/file/24960327634.pdf
- https://meganimal.pt/site/upload/file/vukexijuvoxewez.pdf
- https://gres-k.cat/userfiles/file/42911528890.pdf
- http://mnwebdesign.dk/userfiles/file/66263484506.pdf
- http://grandrosso.com/js/upload/files/gikilovup.pdf
- https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a4b8a78052---41996563574.pdf
- http://blueleaves.ru/userfiles/file/81575713957.pdf
- http://bbmeti.it/userfiles/files/nibupe.pdf
- https://www.abrasco.org.br/ckfinder/userfiles/files/kutinimesuzogiditijubem.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_off0000c336.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC336 | 16792 bytes |
font_01_sfnt_off0000db48.binfa66ad4537261332ee076427d66d4ab55cbc6f559c270b11bfe7b80006efec43 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB48 | 15648 bytes |
font_02_sfnt_off00010354.binabdbcaac561f14867a72195464298232dea0350f9496094eaed80247e13369fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10354 | 10960 bytes |
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