MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous external links, many of which are to other PDF files, suggesting a link farm or redirection mechanism. The presence of a 'download button' heuristic further supports a phishing or social engineering attack pattern. The primary goal appears to be directing users to download malicious content from external URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://oniceh.ru/uplcv?utm_term=putlocker+angel+has+fallen
- http://hcbarrett.com/user_area/file/xubinojodusid.pdf
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1612eeb5a17d42---xeguf.pdf
- https://vocembalo.ch/userfiles/file/37969578649.pdf
- http://dayou.tw/uploadpic/files/202109041801552737.pdf
- http://yokosohk.com/files/fckfiles/file/tolurosogeduraruja.pdf
- https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147b3956969a---ragujixekofuruximix.pdf
- http://laconchigliacasevacanze.it/userfiles/files/20566918330.pdf
- http://www.ks-klinika.ru/ckfinder/userfiles/files/66871158973.pdf
- https://euforbiabulgaria.com/uploads/pages/files/lukuziditow.pdf
- http://aprt1day.ru/file/7868590467.pdf
- http://xn--80aaffebba2apgigwiiececnggk9e4k.xn--p1ai/pict/file/bijikupubeto.pdf
- https://mlbcsimleague.com/ckfinder/userfiles/files/zojuvegasirifezumirez.pdf
- https://hotelreviewreserve.com/basefile/hotelreviewreservecom/files/95808266162.pdf
- https://uclerbaklava.com/resources/file/84188824004.pdf
- http://nanumed.ro/uploads/files/pibavakipimisefurat.pdf
- https://excellencetogether.com/img/files/file/41176491976.pdf
- https://mcq-exambd.bdbabymart.com/app/webroot/ckfinder/userfiles/files/65050744767.pdf
- http://hutnia.pl/userfiles/file/43922071307.pdf
- http://baikalspring.ru/ckfinder/userfiles/files/rodufekijorazurin.pdf
- https://tourpon.kr/FileData/ckfinder/files/20210913_46EF6AFB6EF7BE42.pdf
- http://dulichtantai.com/files/uploaded/files/safugupejofunu.pdf
- http://xn--hazrdner-r4a10d.com/alisveris/yollanan_resimler/file/kikupoxamajoxediparo.pdf
- http://prmakeup.com/Image/files/votijilirobodaf.pdf
- https://basundharamart.com/userfiles/file/89225484755.pdf
- http://spain-ex.com/images/blog/file/jutasekovowavu.pdf
- http://cluster006.ovh.net/~greeters/be/ckfinder/userfiles/files/48161784959.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_off0000d1df.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1DF | 16792 bytes |
font_01_sfnt_off0000e9f1.bin0b7ae01e854fc8d03edffe170d871cfb2395096c9d4ae5237a6c656320a3367f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9F1 | 17948 bytes |
font_02_sfnt_off00011920.bin3189ced85e26f706e80d7d5e87aab9be1109300b5da1a7b867ec2d29e4e6c85d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11920 | 10716 bytes |
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