MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by multiple heuristics as a link farm, directing users to numerous external URLs, many hosted on compromised WordPress sites. The ML classifier and ClamAV also identified it as malicious, specifically as a phishing trojan. The file's structure and numerous outbound links suggest an attempt to lure users to malicious sites, likely for credential harvesting or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://queure.ru/uplcv?utm_term=ugc+approved+mathematics+journals+list+2017+pdf PDF link annotation
- https://dafelia.com/files/94985155604.pdfIn PDF document text
- https://carea2plus.com/wp-content/plugins/super-forms/uploads/php/files/564f5b90e7b20c63aa673ddb5c8a6c48/jevotide.pdfIn PDF document text
- https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160bd5e1612215---745059360.pdfIn PDF document text
- https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089cafc1369d---jibozametekumurapozezono.pdfIn PDF document text
- http://kleinschadenexpert.com/userfiles/file/fikipopuf.pdfIn PDF document text
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/6f3b70c6ad29ce9581d97b4671a9b03a/36128402292.pdfIn PDF document text
- http://sharon-barron.com/userfiles/files/13680616193.pdfIn PDF document text
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160baff2961ca0---voniralerozabijulakejo.pdfIn PDF document text
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/ff3739155c3ea611f27053319b14547b/82970818746.pdfIn PDF document text
- http://houselandia.ru/files/55046367504.pdfIn PDF document text
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/7b5a8e58547b1e0e44488e3fe9c968bd/13966050816.pdfIn PDF document text
- http://safiorida.dk/operatori/userfiles/file/vapewavebakikudejugefamo.pdfIn PDF document text
- http://isspskola.lv/userfiles/files/2642832066.pdfIn PDF document text
- https://legacydockandmarine.com/wp-content/plugins/super-forms/uploads/php/files/8037febb8ba6b2f43abf5086a1730e64/90145954049.pdfIn PDF document text
- http://changrung.com/ckfinder/userfiles/files/30986745753.pdfIn PDF document text
- http://jingluo.net/uploadfiles/files/73508977791.pdfIn PDF document text
- http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160982b9b2bb0b---16136515003.pdfIn PDF document text
- https://responsible-tourism-alliance.com/content_file/files/gipikukuzilugirimazesis.pdfIn PDF document text
- https://martybermanassociates.com/wp-content/plugins/super-forms/uploads/php/files/6a7bc875365aa58b664d0f4852c69015/1651809045.pdfIn PDF document text
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/6aa65b54ae8754d46ed56051bed60b0b/15135446422.pdfIn PDF document text
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160f71eba53412---4820561114.pdfIn PDF document text
- http://k12kos.com/ckfinder/userfiles/files/76658962390.pdfIn PDF document text
- https://eliteplacementagency.com/uploads/files/ditevevixelewaga.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_off0000c817.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC817 | 17520 bytes |
SHA-256: 4ee8388203b230c707b87ca678d6b43b0f55cadce01f93023b991a7e92309dd7 |
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font_01_sfnt_off0000f59e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF59E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010db5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DB5 | 11716 bytes |
SHA-256: f5a1d91cb56c214f3be4a1523dc323f1b5d3dfcb1b3dadb1447f742b44cdc5c9 |
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