MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and numerous external URIs, many of which point to disposable hosting or compromised WordPress uploads, suggesting a link farm designed to redirect users. The presence of JavaScript indicates an attempt to execute code within the PDF viewer, likely to facilitate further malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 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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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=best+pdf+restriction+remover
- http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/0fsoc5b30k5flpij7li3o1m6u7/35930602079.pdf
- http://www.majbrno.cz/uploads/files/nefojawuxitanipuvizitix.pdf
- https://olivermilk.vn/tctt/sites/aaa/file/xalokesi.pdf
- http://sk-massimo.com/js/upload/files/duwelupefuzarabuzovu.pdf
- http://kozelsk-adm.ru/files/uploads/files/57050762052.pdf
- https://lean-ds.com/upload/editor/file/bavixarebod.pdf
- http://geriatriccarenewjersey.com/userfiles/files/duxewekurowokivaneb.pdf
- https://sindhuinvestment.com/ckfinder/userfiles/files/lekejewokuwelaxejubi.pdf
- http://muaah.ca/userfiles/files/54035666990.pdf
- http://i-akparat.kz/ckfinder/userfiles/files/71899666276.pdf
- https://coopinproject.eu/ckfinder/userfiles/files/41663677153.pdf
- https://mpressivelabels.com.au/application/third_party/ckfinder/userfiles/files/86437949874.pdf
- http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/161346a907c57b---kozejevigufo.pdf
- https://hatinhjobs.com/upload/files/71147711186.pdf
- http://ydis.kr/userfiles/file/061602167921.pdf
- http://inventory-acepipe.com/images/uploads/files/borofixutafobelizikoduwum.pdf
- http://uniondrygoods.com/fckeditor/userfiles/file/jelawunimo.pdf
- http://geometrabottero.it/userfiles/files/93283556590.pdf
- http://vip-cond.ru/userfiles/file/79056102723.pdf
- https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/015994b27d98eebe056abfab75dbbd5d/wolakibaguzenuv.pdf
- http://bkm-market.net/userfiles/file/fanuwolojosoxox.pdf
- https://e-midas.ro/files/file/boputuxijubojezotose.pdf
- https://pharmawell.eu/ckfinder/userfiles/files/ruxobezolanejew.pdf
- https://bharatceramics.in/ckfinder/userfiles/files/tubolenuxubofaxoze.pdf
- http://hzosm.com/images/upload/File/93660146266.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_off0000e413.bin241607e5ba301886efe8f563c915ba560104a5e84f14689a09482f528485931e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE413 | 10692 bytes |
font_01_sfnt_off0000fca2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCA2 | 16792 bytes |
font_02_sfnt_off000114b4.bin3fce87bc9b732166ba4e3f552389c6df8d370da0c9e17a797556f047b5c95269 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114B4 | 16768 bytes |
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