MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, a common technique for executing malicious code within documents. The heuristic firings indicate the presence of an algorithmically generated URL and a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://laborke.ru/uplcv?utm_term=pc+games+for+android+free PDF link annotation
- https://sahodayabbsr.com/test/fckeditor/file/sifiwa.pdfIn PDF document text
- http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/49772152717.pdfIn PDF document text
- https://zivotzaokny.eu/res/file/niragunuxolafeloku.pdfIn PDF document text
- https://www.hotelamoha.it/wp-content/plugins/formcraft/file-upload/server/content/files/16140159728135---danupiwun.pdfIn PDF document text
- https://mumegram.com/userfiles/file/98028661777.pdfIn PDF document text
- http://phannhan.vn/files/usersfiles/files/2087933320.pdfIn PDF document text
- http://aluminial.pnh.pt/js/ckfinder/userfiles/files/fofef.pdfIn PDF document text
- http://phamtrangia.site/upload/files/finudixolivekumib.pdfIn PDF document text
- http://sladkiy-ostrov.ru/userfiles/files/xevigu.pdfIn PDF document text
- http://studiogiamberardino.it/userfiles/files/82964783578.pdfIn PDF document text
- https://officialbacknumber.com/editor_up/wuberejif.pdfIn PDF document text
- https://almoheetmanpower.com/public_html/userfiles/file/virozafizumozuf.pdfIn PDF document text
- http://xingyeknitting.com/userfiles/files/tamosabifewuvuta.pdfIn PDF document text
- https://lorus.rs/files/99052582116.pdfIn PDF document text
- https://propiedades.net/ckfinder/userfiles/files/kugasebavesufuduva.pdfIn PDF document text
- https://turystycznapodkowa.pl/userfiles/file/91819616051.pdfIn PDF document text
- http://kanomax-nsk.ru/images/gimufo.pdfIn PDF document text
- http://sonarkella.com/userfiles/file/69754236527.pdfIn PDF document text
- http://drsrkbedcollege.com/ckeditor/ckfinder/userfiles/files/10120855501.pdfIn PDF document text
- http://sanzmendia.com/userfiles/files/dijiwufuxumisazeneb.pdfIn PDF document text
- http://mikomisushi.com/uploads/files/mawonofosewewelu.pdfIn PDF document text
- http://sellmysayarah.com/userfiles/files/81677857497.pdfIn PDF document text
- http://wignaccent.com/FCKeditor_2.6.3/userimages/file/20210917162422.pdfIn PDF document text
- http://iranjobex.com/cache/fck_files/file/11533417608.pdfIn PDF document text
- http://yavuzselimvakfi.org/resimler/site/files/tamifefutogisarune.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_off0000da03.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA03 | 17876 bytes |
SHA-256: 4def2971813458893b4dfa74c404e36ca8b500f39c65992b245c9e4a329a7a07 |
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font_01_sfnt_off000107f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107F3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001200a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1200A | 10676 bytes |
SHA-256: 8c1570295eb7a405da52458246becdbbc716889a28c96f3af979e54ae284f351 |
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