MALICIOUS
156
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 a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm or redirection mechanism. While no scripts were explicitly extracted, the presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics indicates the document's primary function is to direct users to potentially malicious external URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://laborke.ru/uplcv?utm_term=creating+pdf+file+c%23 PDF link annotation
- https://ei-hotel.com/free_images/files/77019877094.pdfIn PDF document text
- https://lacaune.hu/userfiles/file/kiginujeroxefubiv.pdfIn PDF document text
- http://sl-light.ru/design/img/upload/file/93628320818.pdfIn PDF document text
- http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a677136a163---90053232968.pdfIn PDF document text
- http://fotossc.pl/_files/file/17438430771.pdfIn PDF document text
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/22289f3ad5988e07c4a794a2f06832bb/sovepovesoxenexofegidiru.pdfIn PDF document text
- https://easy2ticket.com/upload/files/14364945312.pdfIn PDF document text
- https://flavio-tonon.it/public/file/90110302566.pdfIn PDF document text
- http://xlsferrosilicon.com/d/files/27288606890.pdfIn PDF document text
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/160bbd8af4aecc---wozisosarakepobabosiridap.pdfIn PDF document text
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/pidjj0ujff2cce8ff04uidt6f0/22840312621.pdfIn PDF document text
- http://fujieshubao.com/zk/UploadFile/file/2021081503253373499.pdfIn PDF document text
- https://kund-in.com/userfiles/file/18734529237.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1610e05bdb960b---pirexopubudavefe.pdfIn PDF document text
- http://xn--clinicaquirogavilario-vbc.com/wp-content/plugins/super-forms/uploads/php/files/6lcgbgi671hmbd2m13e1v24qo2/69805974367.pdfIn PDF document text
- http://selmanoglusigorta.com/userfiles/file/57596204885.pdfIn PDF document text
- https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160d3cdff2ead2---36817411473.pdfIn PDF document text
- https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/vm19imevo8dn94d5u6suhesebt/dipojubopozeviwikarus.pdfIn PDF document text
- http://haohanlegend.com/Uploadfiles/files/sivipu.pdfIn PDF document text
- http://vejwun.cz/images/lodab.pdfIn PDF document text
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160742fe6356e6---99577003584.pdfIn PDF document text
- http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611a273330f73---guzonepuzurositepibe.pdfIn PDF document text
- https://mimpiindahsatu.com/contents//files/19122143369.pdfIn PDF document text
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/16118a94f5e0af---26018706510.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bec2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBEC2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d6d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6D4 | 16676 bytes |
SHA-256: d1d8eb1a5e67621ccb82cb52ee771e421896b7fb38b379439110fe2abd181839 |
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font_02_sfnt_off00010275.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10275 | 10536 bytes |
SHA-256: 98dc871ee3ffd6ba75f1b01752b4ad949406b7a0faa4d2bd9a61a9b0c19744cb |
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