MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous URLs pointing to compromised websites and disposable hosting, likely to distribute phishing content or second-stage malware. The presence of external URI heuristics and link farm indicators strongly suggests this pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9969
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://coretry.ru/uplcv?utm_term=hp+s20+cina PDF link annotation
- https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/6c6781393c7d595aaa0e8f2e50533051/rebipoxozavefururo.pdfIn PDF document text
- http://viettelhaiphong.me/data/dulieu/files/90905482383.pdfIn PDF document text
- https://almavilag.hu/files/files/70463315746.pdfIn PDF document text
- https://opsclown.it/ckfinder/userfiles/files/10862556254.pdfIn PDF document text
- https://dunakanyarfesto.hu/ckfinder/userfiles/files/munijoneniminerojozirad.pdfIn PDF document text
- http://simkoongschool.com/uploads/editer/files/jasax.pdfIn PDF document text
- http://mh-gartengestaltung.de/userfiles/file/99080039936.pdfIn PDF document text
- http://uni-soar.com/userfiles/file/74596959430.pdfIn PDF document text
- https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/dr7okr06ubardtjb2k6tl62s9h/guwazifex.pdfIn PDF document text
- http://stowarzyszeniemalyksiaze.eu/img/upload/files/18714169408.pdfIn PDF document text
- http://shortguycentral.com/ck_uploads/files/fegudadul.pdfIn PDF document text
- http://mijn-nederland.nl/userfiles/file/22489721018.pdfIn PDF document text
- https://hexema.com/FCKeditor/file/matikunak.pdfIn PDF document text
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613d94fce7d59---rosodof.pdfIn PDF document text
- http://hani-bee.com/userfiles/files/waselifusiwezas.pdfIn PDF document text
- http://www.gieskestukadoors.nl/ckfinder/files/files/56617172087.pdfIn PDF document text
- http://thietbiotovn.com/Images_upload/files/timotatawusaduwab.pdfIn PDF document text
- http://mdfgiare.com/upload/files/8869619382.pdfIn PDF document text
- http://dermatologomiguelgallego.com/miguel/fck/file/73551970308.pdfIn PDF document text
- https://pasarangroup1.com/contents/files/26338146578.pdfIn PDF document text
- https://marcvandewiele.com/userfiles/file/gotubukifuxadanewogirija.pdfIn PDF document text
- http://zwickerfoto.hu/_user/file/tozevugixudak.pdfIn PDF document text
- https://www.thc.gda.pl/ckfinder/userfiles/files/18810555150.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_off000105cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105CB | 19904 bytes |
SHA-256: 511e3fd5ccea64f8057e4f93010171d25c059f24607371323f757949e221f213 |
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font_01_sfnt_off00013a70.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A70 | 10104 bytes |
SHA-256: 1b60c39771ea901422c1bb997f6157060a03f8289b1734b2de4f80f514306573 |
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font_02_sfnt_off00015114.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15114 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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