MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a link farm pointing to numerous other PDF files hosted on potentially compromised or disposable domains. Heuristics indicate these are likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly suggest malicious intent, likely involving the exploitation of vulnerabilities within the PDF reader to execute a payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9825
Heuristics 6
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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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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 http://nceed.kr/pds/userfiles/files/keduwanitorageduw.pdf In PDF document text
- http://dalhousieretreat.com/cote_dor_import/admin/ckfinder/userfiles/files/5118460786.pdfIn PDF document text
- http://lso-msm.fr/userfiles/file/texebuzazojudesuxo.pdfIn PDF document text
- https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/ci097dit44f681lgdjtf3lqupr/wenipetipawela.pdfIn PDF document text
- http://watch62.ru/files/files/94646583358.pdfIn PDF document text
- http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614dd92eec329---kuzojuluwiwuwit.pdfIn PDF document text
- http://www.farmaciavictoriayjmleon.com/userfiles/files/5256240536.pdfIn PDF document text
- http://duoctruongxuan.vn/userfiles/image/file/53982741637.pdfIn PDF document text
- http://creaorganization.com/depo/sayfaresim/file/1872133882.pdfIn PDF document text
- https://franchisebusinessadvisors.franchisebrokerwebsites.com/broker-site/files/files/84320560306.pdfIn PDF document text
- http://pujcovnanaradi-tvarozna.cz/userfiles/files/xunilotexetum.pdfIn PDF document text
- http://blueyee.com/upload/file/191411598944.pdfIn PDF document text
- http://printrun.nl/userfiles/files/86799504452.pdfIn PDF document text
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613ccf7e04c89---zasibajinisebolumuvu.pdfIn PDF document text
- http://www.clc-engineering.com/siteuploads/editorimg/file/8188865401.pdfIn PDF document text
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1614121425df9a---sibivopuno.pdfIn PDF document text
- http://kimhoatra.vn/upload/fckimagesfile/xebolapovopikovuratekipis.pdfIn PDF document text
- https://www.sistemkabin.com/ckfinder/userfiles/files/dibedufiral.pdfIn PDF document text
- http://asupuro.com/upload/save_image/files/minelat.pdfIn PDF document text
- http://phuocthuan.vn/images/pic/file/82984817344.pdfIn PDF document text
- http://jagatjyotischool.org/jagatjyotischool/userfiles/file/67714585752.pdfIn PDF document text
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16141e640a6e03---jafopotigopo.pdfIn PDF document text
- https://hglobaltourb2c.com/FileData/ckfinder/files/20210909_BD663A82BC2AFC6E.pdfIn PDF document text
- http://ddaengshop.com/ckupload/files/xejifiditalubonisuv.pdfIn PDF document text
- http://triatlonbizuterie.cz/sites/default/files/file/gitezusiganotalobuxam.pdfIn PDF document text
- https://parklanehotel.asia/userfiles/file/80950564463.pdfIn PDF document text
- http://asijskepotraviny.cz/files/file/37806212608.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=android+space+between+buttons+in+linearlayoutPDF link annotation
- 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_off0000b360.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB360 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cb72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB72 | 15792 bytes |
SHA-256: 68ade8720e83d17ab5d47d686d51ce15acc9fa03421e16ade756c5866a19d0e0 |
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font_02_sfnt_off0000f3a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3A4 | 10928 bytes |
SHA-256: 066292ee03687b8a0beb0c15d90ee9835a24fdf0d9effd34b186f0247318c57d |
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