MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is detected as a malicious PDF by ClamAV and exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF files. Several heuristics indicate the use of compromised CMS uploads and disposable hosting, suggesting an attempt to obscure the ultimate destination or leverage compromised infrastructure. The primary purpose appears to be redirecting users to other potentially malicious or SEO-abusing content.
Machine Learning
- Nyx PDF Classifier suspicious score 0.3964
Heuristics 5
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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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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://ntct-dz.com/ckfinder/userfiles/files/depuzidilozug.pdf In PDF document text
- https://gegeny.hu/uploads/file/vorimilebuwegesa.pdfIn PDF document text
- http://terralis.net/catalogue_dynamique/file/kuvenimewiruxivojibugiw.pdfIn PDF document text
- https://dptech.vn/uploads/files/sigatexuxapifavumikusode.pdfIn PDF document text
- http://twgo8.com/uploads/base/files/202109080753245658.pdfIn PDF document text
- https://szelvedojavitasmiskolc.hu/files/files/11607857175.pdfIn PDF document text
- https://ratoempat.com/contents/files/jelufulazixitiwopurufofas.pdfIn PDF document text
- https://aymexco.ro/ckfinder/userfiles/files/71596914896.pdfIn PDF document text
- https://limblength-sldf.com/userfiles/file/xenogaf.pdfIn PDF document text
- http://sokole-tps.pl/userfiles/file/gasumupunukeworufogek.pdfIn PDF document text
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161325497631bb---3568811427.pdfIn PDF document text
- https://cosmopolitanhotelbg.lastrada.bg/uploads/wysiwyg/files/setariwos.pdfIn PDF document text
- http://valkexclusief.reviews/app/webroot/files/userfiles/files/bokepa.pdfIn PDF document text
- https://itchanoi.vn/uploads/news_file/82286470736.pdfIn PDF document text
- http://gaziogluenerji.com/images_upload/files/66123801632.pdfIn PDF document text
- https://bi-kiesabbau.de/cmsimple/images/file/5567064819.pdfIn PDF document text
- http://doorsatyrau.com/ckfinder/userfiles/files/fopavuvogokuzerajezodego.pdfIn PDF document text
- http://klick-tipp.info/ckfinder/userfiles/publics/files/migiwupibefuvofasizu.pdfIn PDF document text
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133ea32b4ef0---83729954867.pdfIn PDF document text
- http://www.pes.edu.mn/ckfinder/userfiles/files/84375277410.pdfIn PDF document text
- http://michardardillier.com/ckfinder/userfiles/files/9601745134.pdfIn PDF document text
- https://stephankeppel.com/userfiles/file/bokugidetamonaxafu.pdfIn PDF document text
- https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/161382a6d8af48---71816021716.pdfIn PDF document text
- https://h1t-urlaurora1-turbo.com/contents/files/62173167412.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=useful+things+to+build+in+minecraft+survival+modePDF link annotation
- 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_off0000f5fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5FC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010e13.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E13 | 11236 bytes |
SHA-256: 1d58466104281c79998f79b6a594bc4cdd54ba5bb52995a1302a9b39036a1b9d |
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font_02_sfnt_off00012805.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12805 | 17908 bytes |
SHA-256: 526883ab6e167e9df64690b0c5574f35a2e01d6ab0e52f6f10e9932d3bc40955 |
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