MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous external URLs, many hosted on compromised WordPress sites, suggesting a phishing or malware distribution campaign. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics indicates a link farm designed to redirect users to potentially malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://crewmak.ru/uplcv?utm_term=relieving+letter+from+school PDF link annotation
- https://www.latentoac.com/portal/wp-content/plugins/super-forms/uploads/php/files/l6572ovte0okc1e2urh9ju9qn5/65906722841.pdfIn PDF document text
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/e9dc6eab990f44d8c4c74328e79f5678/53700698600.pdfIn PDF document text
- https://hrmconsulting.biz/upload/files/riwuwebudi.pdfIn PDF document text
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/sdiossm37dmktmn2cmbopu45j6/mupagakaxukubes.pdfIn PDF document text
- http://thietbixanh.net/uploads/files/kexavezosavufurobora.pdfIn PDF document text
- http://rowanfamilyreunion.com/clients/28915/File/53854344033.pdfIn PDF document text
- http://icltindia.in/userfiles/file/61464481288.pdfIn PDF document text
- http://emannsltd.com/userfiles/78111611437.pdfIn PDF document text
- https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/b153135ec61fd7cf53a4ba78d9fb2e05/merir.pdfIn PDF document text
- http://www.misshandicap.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607b3c1d01954---6220704371.pdfIn PDF document text
- https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/0eb540d2b0a38b00e0779c0f2c807a66/87820895104.pdfIn PDF document text
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/160804d1129dcb---60235653010.pdfIn PDF document text
- http://greatnice.club/updatefiles/file/xujakabisutakuw.pdfIn PDF document text
- https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b30b14ba4ba---44912243606.pdfIn PDF document text
- http://mjacz.cz/soubory/files/97783050353.pdfIn PDF document text
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/8928360c3db789b129c75bb03e00f05b/xojodilapalel.pdfIn PDF document text
- http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acc82982e39---moxedozideposere.pdfIn PDF document text
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086fc38cf449---laligugagunijiwege.pdfIn PDF document text
- https://agrilaui.com/userfiles/file/putelut.pdfIn PDF document text
- http://maidnheaven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e9a8ed9699---bimewi.pdfIn PDF document text
- http://bodymindspiritconnection.org/clients/5/53/53f1eac0d8ee32431a47b4e1af774f29/File/94506244778.pdfIn PDF document text
- https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/dvsoka1s0km0qk0p21b5d4fpfa/37611678171.pdfIn PDF document text
- http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073f8309ee48---suwijapuxamuxuzari.pdfIn PDF document text
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160814925bd247---vosesabefibosaxizoriroka.pdfIn PDF document text
- https://feniks9.ru/ckfinder/userfiles/files/xefurubozefogapurogow.pdfIn PDF document text
- https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/r6rfp9tqjheud7keusgk4sldb9/8164085824.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_off0000f429.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF429 | 17776 bytes |
SHA-256: 10b6ba9306c2ec6ecc95100f695fa2aff8c19bd5e1dfd1b86e3ed853ea5871db |
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font_01_sfnt_off000122a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122A5 | 10732 bytes |
SHA-256: c9067bab145567adc78fc7e939668a2ca6302d2d21e579bf58a1c306e21d77fc |
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font_02_sfnt_off00013b21.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B21 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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