MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised CMS upload storage and disposable hosting, suggesting it functions as a link farm to distribute malicious content or phish users. The presence of external URIs and link farm heuristics indicates an attempt to redirect users to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9934
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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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://philabc.ru/uplcv?utm_term=minna+no+nihongo+n5+listening+answer+key
- http://brenno-tojestto.pl/userfiles/file/56260674886.pdf
- http://vickerycarpet.com/uploads/images//files/libopomaf.pdf
- http://architettoseneca.com/userfiles/files/20520608826.pdf
- http://kup-vino.cz/web/ckfinder/userfiles/files/95887190246.pdf
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606ed1da1d1e5---97576879758.pdf
- http://jurabos.nl/include/editor/file/pumadulejovijirusamomar.pdf
- http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef3be376d8---goramo.pdf
- http://tajeer.co/userfiles/file/dezokudotumuluwepikip.pdf
- http://polskienarty.pl/data/aktualnosci_imgs/file/45776754700.pdf
- https://planet-for-events.de/userfiles/file/wufame.pdf
- http://iglozawiercie.pl/zdjecia/file/88641797914.pdf
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/d9bad3e157b3b3e3cc5bd2f9834f9a9a/90504742043.pdf
- http://vinhthuan.vn/upload/files/74261280926.pdf
- https://kodcomputers.ro/2664/uploads/piroxaganamidudutel.pdf
- https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/5f43bc898ed3bf8254da266dd4eb7d20/58692318450.pdf
- https://tractorpulling-emmeloord.nl/upload/file/43478015430.pdf
- http://gawhs80.com/clients/873705/File/47473509878.pdf
- https://open-call.fr/uploaded/files/mixeze.pdf
- https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/85b8c380ab72fa4aad553ec79b684735/losivupuxulexivozebilabu.pdf
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160f4764f307b5---kodefajutupisibokabotog.pdf
- http://virtualcharityevents.com/vce_cake/files/files/30274337494.pdf
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d829daeb025---30110595235.pdf
- http://phayaotechno.com/UserFiles/File/22874945369.pdf
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a43b7925c40---renugamutididopos.pdf
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac378e5b93a---20976380644.pdf
- https://cursosgratuitosonline.es/wp-content/plugins/super-forms/uploads/php/files/ft63kq5c64jkddusrddmcleqsu/91299208743.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_off0000cd00.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD00 | 16792 bytes |
font_01_sfnt_off0000e512.bin0e8c12cf8f2a83decfe4fc60086144f30695f0cd34777e12fbe787ed1ff9108f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE512 | 16180 bytes |
font_02_sfnt_off00010ef5.bin51507c4e58773e3f2fbe690b849383af1dd40bf99c2e0615ac18f9d08114c62e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EF5 | 10808 bytes |
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