MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous external links, many hosted on compromised or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download button' lure further supports the phishing and malware distribution intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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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://chcial.ru/uplcv?utm_term=present+continuous+for+future+arrangements+exercises+pdf
- http://nuuts.mn/uploads/assets/godoxu.pdf
- http://a-xian-coat.com/uploads/files/202109152252279065.pdf
- http://enjoy.sk/editor_uploads/system/files/pedigabijugaxibe.pdf
- http://archetipoingegneria.it/userfiles/files/85209697241.pdf
- http://podhoru.cz/userfiles/file/duxumavon.pdf
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/428b42ddfc27fb216f310c8c1a4613a8/mowevimagazupinipaxowom.pdf
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f2e370fab8---sakimiremerekawiwegejepa.pdf
- http://cw-cut.com/uploads/file/59708834340.pdf
- http://www.dawnrotaryclub.tw/UserFiles/files/30762932993.pdf
- https://giriconsultancy.com/content_files/files/71701258802.pdf
- https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/r90735rsmpjtsb4rmcgkq4srf1/20153785277.pdf
- https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/161401ed943f86---23008043920.pdf
- http://bckbytow.naszbip.pl/img/upload/files/87952220000.pdf
- http://wellfoto.cz/pictures/files/pepumogikododoru.pdf
- http://upoart.com/ckfinder/userfiles/files/8562325449.pdf
- http://spreewaldatelier.de/img/editor/file/vovokawuguminegelizoxin.pdf
- https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e94673f307---78791766993.pdf
- http://c2r-auto.com/uploadfiles/file/2021090122535173499.pdf
- http://calisnt.com/uploads/files/20191540896.pdf
- http://sentezetutmerkezi.com/upload/ckfinder/files/26163157462.pdf
- http://www.pes.edu.mn/ckfinder/userfiles/files/kebaxun.pdf
- https://santechnikosdarbai.lt/images/files/34425036850.pdf
- http://eqletstalk.com/uploads/files/202109021022338780.pdf
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613259c2c2c11---2778703879.pdf
- https://copyjokertw.aw6.tw/uploadfile/qu4_qu106_com/files/79854060443.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_off0000c359.bin295b894c924bf06b7c93b8238873c2b167ff3c2b1129b49ae97c651d456ae005 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC359 | 11120 bytes |
font_01_sfnt_off0000dd2a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD2A | 16792 bytes |
font_02_sfnt_off0000f53c.bind28e549bc349b1dbcff246b259598ceb64588fd6cb79d3799d25373469e510ca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF53C | 16908 bytes |
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