MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, many pointing to compromised CMS uploads or disposable hosting, indicating a link farm or redirection strategy. The ML classifier and ClamAV detection strongly suggest malicious intent, with ClamAV identifying it as a phishing trojan. While no scripts were explicitly extracted, the PDF structure and heuristic firings point towards an attack pattern involving directing users to potentially malicious external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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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://archism.ru/uplcv?utm_term=selenium+for+ios PDF link annotation
- http://www.jindatunnel.com/up_files/file/20027354585.pdfIn PDF document text
- https://alves.bg/ckfinder/userfiles/files/28924392256.pdfIn PDF document text
- http://pokorny-podlahy.cz/UserFiles/File/kirifa.pdfIn PDF document text
- http://ingegneriarossi.it/userfiles/files/43627206266.pdfIn PDF document text
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613499681ea80---53065811620.pdfIn PDF document text
- http://aesg2edcv.handylover.com/upload/files/44303771605.pdfIn PDF document text
- http://zzzwchem.com/upload/files/95179089619.pdfIn PDF document text
- https://sakura-bashi.com/uploads/files/202109080436554975.pdfIn PDF document text
- http://3qbuy.com/CKEdit/upload/files/felazu.pdfIn PDF document text
- https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613912cbc6619---83856144212.pdfIn PDF document text
- https://tsydesign.com/userfiles/jws/files/66198795917.pdfIn PDF document text
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/1723130069e799d04e7186ad95f792c1/lelobizum.pdfIn PDF document text
- http://lepal.sk/ckfinder/userfiles/files/5426803811.pdfIn PDF document text
- https://bevasilicones.in/userfiles/file/pijejasaviz.pdfIn PDF document text
- http://steinbach.casawell.tw/userfiles/file/vijako.pdfIn PDF document text
- http://c2r-auto.com/uploadfiles/file/2021090513195473499.pdfIn PDF document text
- http://dailygameresult.com/editor/UserFiles2/files/44021054713.pdfIn PDF document text
- https://pezenasenchantee.fr/userfiles/file/29444436936.pdfIn PDF document text
- http://manegedebuitenwijck.nl/uploads/file/42073729063.pdfIn PDF document text
- http://kimhoatra.com/upload/fckimagesfile/mejitakomasijogobobexige.pdfIn PDF document text
- http://mamolenasnc.it/userfiles/files/vedolelukalazepegegewabim.pdfIn PDF document text
- http://agisma.ru/files/pages/files/vivekisaji.pdfIn PDF document text
- https://fnb-concepts.com/images/uploads/files/66001344872.pdfIn PDF document text
- https://www.truck-transport.com/ckfinder/userfiles/files/megulaguwexikusijiwopowik.pdfIn PDF document text
- http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/a800d51452fe3549cf99384cbac1e1ea/21013785099.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_off0000eb9d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB9D | 18772 bytes |
SHA-256: 14618371fa70bf515553bd98d75d3fea5e00bb61ccc91da5d771921d6bdd6010 |
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font_01_sfnt_off00011d21.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D21 | 10288 bytes |
SHA-256: 7d17cbd92c419051609beb32788d3fdf6f4eb8e764bb7c1839f2e76850a2fb76 |
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font_02_sfnt_off00013431.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13431 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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