MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by multiple heuristics as a link farm, with many URLs pointing to compromised WordPress sites and disposable hosting. The ML classifier and ClamAV also identified it as malicious, specifically as a phishing trojan. The document's structure and numerous external links suggest it is designed to lure users to malicious websites, likely for credential harvesting or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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 http://klinikoral.com/img/userfiles/files/fuwaz.pdf In PDF document text
- http://xlpe.net/Images_upload/files/33735158875.pdfIn PDF document text
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16090e4fda816f---wevew.pdfIn PDF document text
- https://www.cibaospalaser.com/wp-content/plugins/super-forms/uploads/php/files/8f3p3lk95gj02td90qgomiv02n/17455258295.pdfIn PDF document text
- https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f3a8ab23d98---75825991265.pdfIn PDF document text
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087809ee006f---rodozof.pdfIn PDF document text
- https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/05d9a112d8cd3d7b7a9a245790a6d1b4/puwomofepava.pdfIn PDF document text
- http://ahzycw.com/upload_fck/file/2021-9-1/20210901135807912085.pdfIn PDF document text
- http://czechnews.cz/userfiles/files/bobigatetabiwim.pdfIn PDF document text
- https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070568f5d13d---wavekemaneromejoxalawigob.pdfIn PDF document text
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160afb16c0427a---tatozazixi.pdfIn PDF document text
- http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160f9dabc95926---83638924927.pdfIn PDF document text
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/161125521a9eba---30296806901.pdfIn PDF document text
- http://turhantur.com/turhantur/files/22170014140.pdfIn PDF document text
- http://jogamiskolc.hu/ckfinder/userfiles/files/zumosemovudo.pdfIn PDF document text
- http://lorofilmes.com/Uploads/ckfinder/userfiles/files/lexifa.pdfIn PDF document text
- https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7f506a0f46---tajit.pdfIn PDF document text
- https://ascinfratech.com/clientprojects/trading/file/sagegobineromixumozesu.pdfIn PDF document text
- https://rintrans.com/files/79103093136.pdfIn PDF document text
- http://ristoranteyuri2.com/userfiles/file/romujave.pdfIn PDF document text
- https://olgunbey.com/upload/ckfinder/files/lofifexisofogilagitoture.pdfIn PDF document text
- http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b82f4ae006---bodizidida.pdfIn PDF document text
- http://hzjksj.com/images/upload/File/74147868138.pdfIn PDF document text
- http://www.gulbaharsigorta.com/contentData/file/95092334562.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078085979e7d---nirerusidusomew.pdfIn PDF document text
- https://cowichanmusicfestival.com/userfiles/file/15785736295.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=vectors+in+biology+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_off0000d28d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD28D | 10856 bytes |
SHA-256: 4b62c977dbfae34b09a059f58ac6441731aa2263fff5236c5431443a9c6e220b |
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font_01_sfnt_off0000eb52.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB52 | 17420 bytes |
SHA-256: 46291d13c087069ce74083588d7edece5eb79b16f947ab72d66df7b48242a4e4 |
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font_02_sfnt_off000117ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117AD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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