MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, presenting numerous URLs that point to potentially compromised websites or disposable hosting, suggesting a phishing or malware distribution scheme. The presence of external URI heuristics and link farm indicators reinforces this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://sshs1962.info/clients/3/33/33dcd814b32da85629335a95ab3d0158/File/19521616864.pdf In PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092370b01163---33088172640.pdfIn PDF document text
- https://datatech-int.com/userfiles/file/3337314363.pdfIn PDF document text
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/9d80c7eb8f8da5be8f747a1b2a7d9be0/50935565080.pdfIn PDF document text
- http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e7586f6021c---76791272110.pdfIn PDF document text
- https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/092cf289a02c4acacc5edfc5082d34a6/tuwiseduzunebukazedes.pdfIn PDF document text
- https://baongochoa.com/upload/file/gifiguwi.pdfIn PDF document text
- http://kwiatmetal.pl/userfiles/file/sotavanufejo.pdfIn PDF document text
- https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/bo1pq4gbrv0opa9v2eg1uahgo1/77110391782.pdfIn PDF document text
- https://maggies-handmade.com/UserFiles/files/vujuluwomixunenotoba.pdfIn PDF document text
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e5d6e788cca---82757523805.pdfIn PDF document text
- http://www.misshandicap.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16084ceee47ff9---xumof.pdfIn PDF document text
- http://policylic.com/uploads/files/wadukajuzazugotitejagupi.pdfIn PDF document text
- http://crmrealty360degree.in/userfiles/file/44213520589.pdfIn PDF document text
- https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/25395428fe4c5298b6743790d5c98c31/tinufamudazavi.pdfIn PDF document text
- https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/viue3q884j4istk5br43mmh33u/86271252680.pdfIn PDF document text
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/u1lfcg92glaj1md16b0v1ulge0/buzezavifozapubetix.pdfIn PDF document text
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ea3f04f45e---38123139580.pdfIn PDF document text
- https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/7207593f2f0011169fa8c9374cb37820/zijikugoti.pdfIn PDF document text
- https://tselectromechanical.com/uploads/CKfiles/files/ropinewuv.pdfIn PDF document text
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16081600272f77---suwukademanunonakuwarodor.pdfIn PDF document text
- https://farmstead.tw/farmstead/upload/files/89787351311.pdfIn PDF document text
- http://qlinairnv.be/userfiles/file/tefefeduzave.pdfIn PDF document text
- http://hasyo.net/files/file/19932347941.pdfIn PDF document text
- https://ximatinhdongnai.com/app/webroot/files/images/pages/files/68430153753.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=quantitative+aptitude+basic+formulas+pdfPDF 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_off0000e2ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2AE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fac5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAC5 | 11148 bytes |
SHA-256: 6c1f5e665da22b75f1cf18ddcea260ce40827929dcb90b252935e90c36513964 |
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font_02_sfnt_off000114a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114A9 | 19364 bytes |
SHA-256: 16926c27eed56a14498fdc971f2a4f8516bf0820d95b225a8af97498c80913e2 |
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