MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristic 'SE_BROWSER_INSTALL_LURE' strongly suggests a social-engineering attack aimed at tricking the user into installing malicious software by posing as a necessary browser update or extension. The presence of numerous external URLs, many with 'utm_term' parameters, further supports a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9822
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://synerhu.ru/uplcv?utm_term=dgamer+hack+mod+apk PDF link annotation
- https://aathichudi.org/userfiles/file/56930850096.pdfIn PDF document text
- http://pincesorvarshop.hu/editor_up/41110490015.pdfIn PDF document text
- http://www.w.radeton.cz/ckfinder/userfiles/files/verezoxapapaxojudopotoke.pdfIn PDF document text
- https://xn--fct5g39pjpo.tw/upload/leakstop/files/57699922782.pdfIn PDF document text
- https://avukatwebsitesi.trakyasoft.com/upload/files/89833407759.pdfIn PDF document text
- http://smartickgroup.com/userfiles/20226071657.pdfIn PDF document text
- https://alley.52886.tw/uploads/files/dukomapi.pdfIn PDF document text
- https://robertbah.si/files/file/91219012212.pdfIn PDF document text
- https://www.cylinder96.ru/admin/ckfinder/userfiles/files/6593062503.pdfIn PDF document text
- http://veterinariomauracotti.it/userfiles/files/xizujezaxemenog.pdfIn PDF document text
- http://www.northern-japan.com/image/upload/File/kofofibuvafobisuzogizad.pdfIn PDF document text
- http://bradzo-ep.com/uploads/files/24124510176.pdfIn PDF document text
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16144cbb557ae4---31470644961.pdfIn PDF document text
- https://canevastoilestjean.com/upload/editor/file/50191900899.pdfIn PDF document text
- http://contactfm.be/userfiles/files/fuwotoxesudir.pdfIn PDF document text
- http://peetersinstallatietechniek.nl/upload/files/31754537072.pdfIn PDF document text
- http://vietsinphar.com/uploads/files/marokeporibeluminetupo.pdfIn PDF document text
- http://www.s-prom.si/fileupload/file/gaxafekopinuromaxigepav.pdfIn PDF document text
- http://lecieldesandes.fr/ckfinder/userfiles/files/24778975922.pdfIn PDF document text
- https://e-midas.ro/files/file/boputuxijubojezotose.pdfIn PDF document text
- https://bike-accessories.supersites.gr/content/ckfinder/files/49809997219.pdfIn PDF document text
- http://greensquares.in/userfiles/file///pekobota.pdfIn PDF document text
- http://neuchina.org/userfiles/file/maxidamifonolalazuguzubox.pdfIn PDF document text
- http://kibbkw.com/uploads/files/22325428212.pdfIn PDF document text
- https://ideylia.fr/uploads/file/39150163004.pdfIn PDF document text
- https://rugsinc.in/UserFiles/files/sivitelirafumi.pdfIn PDF document text
- https://flims.atelierleuthold.ch/userfiles/files/gafezunikufiwajol.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_off0000f92d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF92D | 10548 bytes |
SHA-256: c50f597b243a9d7ff9e9fb181de6a960e2c09e55fe717444e5938000f24af119 |
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font_01_sfnt_off000110ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110FF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012911.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12911 | 18404 bytes |
SHA-256: 62860b8a1f078dbd149ab2fe0dbd74972d0729c994e23f3e3a69223e357baa56 |
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