MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious File
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple compromised websites and potentially disposable hosting. The presence of numerous external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly suggest the document's purpose is to redirect users to malicious content, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://ketchas.ru/uplcv?utm_term=two+step+equations+with+decimals+worksheet+answers PDF link annotation
- http://gitimohammadilakhimpur.org/ckfinder/userfiles/files/88663422743.pdfIn PDF document text
- https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/hc1q1ssdkr0tvnr30o1m4kuq83/23983057110.pdfIn PDF document text
- http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609cfd3e3dbfa---zokawomebatinel.pdfIn PDF document text
- https://fedico.ca/upload/editor/file/20784105491.pdfIn PDF document text
- http://audiencefertilization.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/80233930961.pdfIn PDF document text
- https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/aq604rgafdvcv1qs360j6m493s/87878675845.pdfIn PDF document text
- http://m2mus.ca/clients/b/b1/b1ca46fdb12d68e762e4a8b3318caec0/File/zejijus.pdfIn PDF document text
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/4kfjssm5ivk6t36ie1v6r91k78/nafok.pdfIn PDF document text
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/16078ac8007477---fizixalozajagurabeselun.pdfIn PDF document text
- https://papersacksfactory.ae/images/bulk_images/files/42655435235.pdfIn PDF document text
- http://www.truca-taoules.com/ckfinder/userfiles/files/xuwapuwenosukelakolujunid.pdfIn PDF document text
- http://niezapominajkowo.eu/userfiles/file/36207760154.pdfIn PDF document text
- http://iaestedresden.de/userfiles/file/5148045313.pdfIn PDF document text
- http://tzoetemondje.be/uploads/files/58853252202.pdfIn PDF document text
- http://beiwendq.com/userfiles/file/5879850068.pdfIn PDF document text
- https://abouelhoulgroup.com/userfiles/files/57254666786.pdfIn PDF document text
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/dff0is0i48hbtn7fpgv9hl84sm/32754724495.pdfIn PDF document text
- https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/d0c216d5e940659b8af0cec4975477e1/pasoda.pdfIn PDF document text
- http://nineslash.com/user_file/file/66063327914.pdfIn PDF document text
- http://spreewaldatelier.de/img/editor/file/12007867151.pdfIn PDF document text
- https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/ad3bfcef3ee16d7dabfdd40833e92b2b/gowewed.pdfIn PDF document text
- http://quinta.cl/upload/files/49223189412.pdfIn PDF document text
- http://dsm-trhs68.com/clients/8/81/818e764d3414495a915a5f66638dc9bf/File/danonatedoxobimuf.pdfIn PDF document text
- https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/ac10646651ea5fe282306162a36a281c/78964751305.pdfIn PDF document text
- http://sahamit.net/userfiles/file/xumakikujexovo.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_off0000c1bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC1BC | 11164 bytes |
SHA-256: ac8f09caa0e577015abf9d0dbd7e6e486487a633942eb0c96490bf2b7ef4d25c |
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font_01_sfnt_off0000db7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB7A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f38c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF38C | 17380 bytes |
SHA-256: 6a6d7ffbae3db4f9e366039346ae5ab43bba30e4104dfa5cd0f981d51b83be62 |
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