MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress sites, suggesting a link farm designed to distribute malware or facilitate phishing. The presence of external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic further support this attack pattern. No scripts were extracted, limiting the analysis of direct execution vectors.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://voyagerf.ru/wp-content/plugins/super-forms/uploads/php/files/05f3025040ffa00fdce58dd4047d1b6d/57310323790.pdf In PDF document text
- http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/lojq22rv63makt24pum22sud8j/wagufifepizeni.pdfIn PDF document text
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ee13b4d7ee---javepilidavesebuni.pdfIn PDF document text
- http://xiaohecollege.com/d/files/76587890644.pdfIn PDF document text
- http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbe46f195b8---fabozoragofo.pdfIn PDF document text
- https://cuisinescartier.ca/upload/editor/file/fejutipatid.pdfIn PDF document text
- http://www.circoloaletrium.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a75621071ce---nilaz.pdfIn PDF document text
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/mekha2b2923sq63q7a8sctb2sq/40296275438.pdfIn PDF document text
- http://monkey-do.net/userfiles/file/nonolifosobizepis.pdfIn PDF document text
- http://rszm88.com/upfolder/e/files/20210628164624.pdfIn PDF document text
- http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d77c2f167de---47637855886.pdfIn PDF document text
- http://midiabyz.com/wp-content/plugins/super-forms/uploads/php/files/8c6d5d6e77a4ed8abf020a27d2bb13e9/37456301010.pdfIn PDF document text
- https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608fb59c6d220---luvumonilafawugesuti.pdfIn PDF document text
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a85f880c688---38516422336.pdfIn PDF document text
- http://webursitet.org/Files/file/totuxar.pdfIn PDF document text
- https://asi-filter.pl/files/file/damipimel.pdfIn PDF document text
- https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4d8c725be7---vupupobutaledexowosijev.pdfIn PDF document text
- https://pharmnet.cz/ckfiles/files/files/40651063795.pdfIn PDF document text
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abf5609111c---44339920202.pdfIn PDF document text
- https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ef125ddecc---62524088860.pdfIn PDF document text
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/f8a6eeb5c1d192ed9d9f7a4ab7f9b6c7/fijasajilituwobebe.pdfIn PDF document text
- http://xn--80aaeiengkwpz6p.xn--p1ai/pub/file/79940695542.pdfIn PDF document text
- https://www.masismarketing.com/wp-content/plugins/super-forms/uploads/php/files/4da9ab1dae087e3172b1509c61497b63/lurowujod.pdfIn PDF document text
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/54e1bcf23b691c065c2740e7b6354683/tejuvatipusenuzob.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=pacemaker+operation+costPDF 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_off0000e64c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE64C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fe5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE5E | 16764 bytes |
SHA-256: 6b0504a3b79e5204c778a6daf5577e2af3d8db777c8a557e768f5eac511617d9 |
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font_02_sfnt_off00012a20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A20 | 10580 bytes |
SHA-256: bb750cb1b9c60a6f483673953963cbdc4e69a20b4c53010ed7fff5ddd376670e |
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