MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document contains numerous embedded URLs pointing to compromised websites and disposable hosting, suggesting it functions as a link farm for phishing or malware distribution. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://krisoc.ru/uplcv?utm_term=an+introduction+to+thermal+physics+solutions PDF link annotation
- https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/3e73ed24e870321c3cf5f3e5cfeb250a/fufevo.pdfIn PDF document text
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/8f5113f1716816d70ad72998e7f8290c/siripixinegetovetigadofux.pdfIn PDF document text
- http://curry-box-deluxe.de/userfiles/file/lazorajofonudabur.pdfIn PDF document text
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/mgeoi2n8qhe5gop4b8vp8g2m38/lexeganolegitejugasuke.pdfIn PDF document text
- http://www.radiooro.com.mx/media/images/uploads/files/70444638163.pdfIn PDF document text
- https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/l4bt1nfijaosle6llqnh3e767t/86007082797.pdfIn PDF document text
- https://collegemahan.ir/basefile/collegemahanir/files/14339074307.pdfIn PDF document text
- https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/485468d140eb66e5ec8e00519d1394fd/21954406530.pdfIn PDF document text
- https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/topqebg45g4feg3n2dfg0deo74/98527648932.pdfIn PDF document text
- https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/faaf445ccc065c8de0c869f8d67618f7/89515433095.pdfIn PDF document text
- https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/0db8afb3b4d441a8aa2bd4304d27f91e/tumalilisusakedidanuz.pdfIn PDF document text
- http://studiogiovannone.com/userfiles/files/puxugemoj.pdfIn PDF document text
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/ivbh1tdgfl33pl9btvqh7q4hf1/35603976177.pdfIn PDF document text
- https://centrosteadycam.it/wp-content/plugins/super-forms/uploads/php/files/a648b1e27a9b7976fda727a4f0b9c92f/49213505011.pdfIn PDF document text
- http://www.doctor-carpet.com/wp-content/plugins/super-forms/uploads/php/files/g62t0gaa50si9u46bt5nusla32/58744720581.pdfIn PDF document text
- https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607fb08214755---zudedazesojasoliru.pdfIn PDF document text
- http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a5a415dd063---2436515129.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ea93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA93 | 5404 bytes |
SHA-256: 3417f014a446597fd745d54778aae606da3cebc07fefeadf87420ea951046ac9 |
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font_01_sfnt_off0000fccc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCCC | 11264 bytes |
SHA-256: e39e2bbdb1d089cc7b26c065eeaa046d9b5e10289c4988b71b5edc4118c26197 |
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