MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs and is identified as a link farm, with several pointing to compromised CMS uploads. The presence of embedded JavaScript and a critical ClamAV detection for 'Pdf.Phishing.Trojan' strongly indicates malicious intent, likely to deliver a second-stage payload or redirect users to phishing sites. The ML classifier also returned a high probability of maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://cructi.ru/uplcv?utm_term=download+games+android+di+pc PDF link annotation
- http://xtra360.net/campannas/file/29056270060.pdfIn PDF document text
- http://xn--80aap0abfiql8h.xn--p1ai/admin/ckfinder/userfiles/files/50683954778.pdfIn PDF document text
- http://stonebreaker.at/7742000085.pdfIn PDF document text
- https://widerbet.pl/userfiles/file/56063095719.pdfIn PDF document text
- https://listapp.in/ci/userfiles/files/58974229707.pdfIn PDF document text
- http://yomamasushitogo.com/uploads/files/93404756467.pdfIn PDF document text
- https://trimix.bg/UserFiles/File/13038084490.pdfIn PDF document text
- http://sun-marche.com/app/webroot/js/ckfinder/userfiles/files/bumojasad.pdfIn PDF document text
- https://appchecar.com/ckfinder/userfiles/files/85173364851.pdfIn PDF document text
- https://vieclamday.com/userfiles/file/boralofawoz.pdfIn PDF document text
- https://aldurra.ly/images-editeur/img/file/55376311510.pdfIn PDF document text
- http://hoangminhceramics.com/app/webroot/uploads/files/89650776688.pdfIn PDF document text
- https://poojaindiangrill.com/nbloom/fckuploads/file/ladapisofejajut.pdfIn PDF document text
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/5c62789227bdab1d7c4faf2c08a580eb/towupefuwofotelokeban.pdfIn PDF document text
- http://kelsenator.com/userimages/25581790280.pdfIn PDF document text
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613837810e137---pekezofo.pdfIn PDF document text
- http://3gr-group.com/ci/userfiles/files/rorovomexatewapirakot.pdfIn PDF document text
- https://sindonis.com/userfiles/file/95229676779.pdfIn PDF document text
- http://fantasymusic.it/userfiles/files/92745537768.pdfIn PDF document text
- http://dglytbt.com/upfolder/e/files/20210913045827.pdfIn PDF document text
- https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/t5kgtf4o2bgi8nvdp2l8h0be2t/redidilalelomekadis.pdfIn PDF document text
- http://cuacuonanbinh.com/userfiles/file/61804353707.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_off0000e853.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE853 | 10844 bytes |
SHA-256: cacee02eabfb9ccffd373ddc3315d2f87bfcff710c1dda832ca3ed381b9260a2 |
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font_01_sfnt_off00010126.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10126 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011938.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11938 | 17768 bytes |
SHA-256: a51cafe0f0184cd8dcf3910960f08376eab61c5b12aa09f85d85b3d0d0ab20d6 |
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