MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple potentially compromised or disposable hosting sites. The embedded URLs, such as http://perilatomsk.ru/ckfinder/userfiles/files/varugol.pdf, are likely part of a campaign to distribute further malicious content or conduct phishing attacks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 http://perilatomsk.ru/ckfinder/userfiles/files/varugol.pdf In PDF document text
- http://atletika-pardubice.cz/files/file/zesoborudusiwadamobide.pdfIn PDF document text
- https://gencshow.com/upload/ckfinder/files/70721180133.pdfIn PDF document text
- http://naim.naparts.com/images/fck/file/13183232525.pdfIn PDF document text
- https://olterus.info/contents/files/70967970188.pdfIn PDF document text
- https://castilloexterior.org/ckfinder/userfiles/files/29312951027.pdfIn PDF document text
- http://globalnetworks.de/www.galabau-poscher.de/main/preview/ckfinder/userfiles/files/deraloxap.pdfIn PDF document text
- http://pro-group.ru/userfiles/files/36195811973.pdfIn PDF document text
- http://movietek.vn/hinh-anh/files/fibetebefositanixejos.pdfIn PDF document text
- https://bselink.com/userfiles/file/wewuze.pdfIn PDF document text
- https://footballsod.com/images/ck-uploads/files/gedomaxejotozubomosejom.pdfIn PDF document text
- http://www.dfdtrading.sk/ckfinder/userfiles/files/55906522229.pdfIn PDF document text
- http://luxlustry.ru/img/upload/xejigipufisizegaw.pdfIn PDF document text
- https://kingcarmotorista.net/uploads/files/5311931643.pdfIn PDF document text
- http://urjabatteries.in/userfiles/file/12140882845.pdfIn PDF document text
- http://sushistoryus.com/uploads/files/kajuletujitel.pdfIn PDF document text
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16137f15951b8c---tajalever.pdfIn PDF document text
- http://cabinet-blin.fr/ressource/site-image/files/30128694599.pdfIn PDF document text
- https://almudenafernandez.co/ckfinder/userfiles/Files/loxabejugopezegivex.pdfIn PDF document text
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613a050334039---pisafegekugulojefo.pdfIn PDF document text
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/ijgph0rdnt9v7j9bjf8o27u718/3316278550.pdfIn PDF document text
- https://sanidom.pl/img/file/58688266070.pdfIn PDF document text
- http://girc.ncue.edu.tw/ckfinder/ckfiles/files/latetisamidukuledod.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=remove+text+from+image+androidPDF link annotation
- 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_off0000d8ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8CA | 18024 bytes |
SHA-256: 7aedaf661d244a947c4b726fdf6ebc9bb046deef6f26cb92b4aa0c6ef629976c |
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font_01_sfnt_off000106c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106C7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011ede.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EDE | 10696 bytes |
SHA-256: 97fdafb2797057633054756a460e02e687d5584be9dd2534844757e029a79d66 |
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