MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. Heuristic analysis revealed it functions as a link farm, directing users to multiple compromised or disposable hosting domains. The presence of numerous URLs, many embedded within the document's structure, strongly suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9918
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 https://irlanc.ru/uplcv?utm_term=half+of+the+body+is+numb PDF link annotation
- http://elsekmont.eu/userfiles/file/rijipuluzevenejejuzo.pdfIn PDF document text
- http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/o6pnd8h40agfaq649nptov765i/85635369907.pdfIn PDF document text
- https://sbsoftware.ro/admin/userfiles/file/66395653577.pdfIn PDF document text
- https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/c5bu5plro1iuiln4l7jm35g47k/98450004287.pdfIn PDF document text
- http://michardardillier.com/ckfinder/userfiles/files/45186537126.pdfIn PDF document text
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b9b14739d4---dugigimajubibowal.pdfIn PDF document text
- https://gearforfree.com/wp-content/plugins/super-forms/uploads/php/files/fiou865oflpjuhrnu6vpcc1clr/vizem.pdfIn PDF document text
- http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1608d5c4d8ad81---koxerorub.pdfIn PDF document text
- https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/vm2ies5gck29ni3ptbub76cb5k/likiwusofolajo.pdfIn PDF document text
- https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ee09e5dfa5---46518640344.pdfIn PDF document text
- https://clinicscrm.com/img/files/41403441951.pdfIn PDF document text
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1609aca24d013a---mulofosezeboloxuto.pdfIn PDF document text
- http://bahattinburyan.com/userfiles/file/35661233211.pdfIn PDF document text
- http://densayhongngoai.com/uploads/userfiles/file/nodupolavusugetuwipedatap.pdfIn PDF document text
- http://wrtour.com/FileData/ckfinder/files/20210603_CF48C3246F9F775E.pdfIn PDF document text
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084ef714cdb9---21190975427.pdfIn PDF document text
- http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/71910244e468bdbb79fd9836d29e7530/23008929256.pdfIn PDF document text
- https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3dbd728e3a---vufipizoje.pdfIn PDF document text
- http://xn--dlek-5qa.com/admin/UserFiles/file/94682309078.pdfIn PDF document text
- https://gangwontaxi.com/FileData/ckfinder/files/20210625_19F4EF4AEB6544FF.pdfIn PDF document text
- http://berbun.com/user_img/file/89313409609.pdfIn PDF document text
- https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/3049df22f2b072a89b1efc7ee67802a0/mutesojo.pdfIn PDF document text
- https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/7hmk8f8b4t5sup3d4qk4jvsps5/15094976307.pdfIn PDF document text
- http://krevue.cz/UserFiles/File/21811001315.pdfIn PDF document text
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_004_off000134d7.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x134D7 | 17920 bytes |
SHA-256: 346f835d98e7635a878cbff3c745c40b5d4b4ccc01f68c77b6cbe4bb98ac698f |
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font_00_sfnt_off0000f2b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2B0 | 16244 bytes |
SHA-256: 0e7fa46b43b7d5dccf1c2227fb9f1aa57562956175af9c5c631c53209ba8ebf9 |
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font_01_sfnt_off00011cc6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CC6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_03_sfnt_off000150ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x150AE | 10864 bytes |
SHA-256: e862b20088fbaeab12350757bb571d0bf9fcbe6615499a9b384ba399ca732a82 |
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