MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of links, many pointing to compromised WordPress sites hosting other PDF files. This behavior is indicative of a link farm used to distribute malicious content or facilitate phishing attacks. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.7591
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://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/2e99eb8144e82d1dc006d83df67d201e/59023719049.pdf In PDF document text
- http://nutronicltd.com/userfiles/file/31146442556.pdfIn PDF document text
- http://adirondackseafood.com/ckfinder/userfiles/files/funezukesok.pdfIn PDF document text
- https://shriramsteels.in/public/ckfinder/userfiles/files/fozanijebokulojigajuda.pdfIn PDF document text
- http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607658a51f21d---zekarizotabogegunalipimu.pdfIn PDF document text
- http://terezmisszio.eu/files/file/68095428942.pdfIn PDF document text
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/cbeb7f82bb560d1dd666e3c3a4b662ea/28883888835.pdfIn PDF document text
- http://absolutelyneon.com/userfiles/file/monovuvavowosiri.pdfIn PDF document text
- http://federalwayhighschoolclassof1970.com/clients/8/8c/8ce2019516a67423f07d8eefa67dd611/File/popizibifagufuma.pdfIn PDF document text
- http://iziusb.com/userfiles//file/62869609073.pdfIn PDF document text
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c64bfbbc400---gatenifojo.pdfIn PDF document text
- https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/029a737f39e6f51d1f3a0a46ba10006e/pesenivavogulexiw.pdfIn PDF document text
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/p3f9nf5h9bscogkmmtmfjl6834/51952848704.pdfIn PDF document text
- http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608041ac75ee5---87182904631.pdfIn PDF document text
- https://lescourailleurs.com/upload/editor/file/vikoxusu.pdfIn PDF document text
- http://commsoft.nu/demo/ktb/wsmbilder/files/zemixuxixamudanid.pdfIn PDF document text
- https://quickonboarding.com/wp-content/plugins/super-forms/uploads/php/files/f28bb713eb11ee68496339f7a6ad9ed2/26622614961.pdfIn PDF document text
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b68db245b8c---jedolasawaxajije.pdfIn PDF document text
- https://www.psk.com.au/application/third_party/ckfinder/userfiles/files/90665048535.pdfIn PDF document text
- http://albino-pitti.com/pub_img/file/17020769080.pdfIn PDF document text
- http://teplolux72.ru/upload/file/momaxuwibobusogalaxus.pdfIn PDF document text
- http://bixenony.com/userfiles/files/dapide.pdfIn PDF document text
- https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/16092461092187---62971669734.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=a+textbook+on+power+system+engineeringPDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c320.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC320 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000db37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB37 | 10904 bytes |
SHA-256: 9d90ca12ad00a262fc9d4aa8349dc8f106ce5a6c65f5a438e06c70aadb784247 |
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