MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically identified as a phishing trojan. It contains numerous embedded URLs that point to various domains, suggesting a link farm designed to redirect users to potentially harmful content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly indicates the document's purpose is to host a large number of links on disposable domains.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 5
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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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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://krisoc.ru/uplcv?utm_term=3d+game+development+with+unity3d+in+2021 PDF link annotation
- http://bacvietexpress.com/upload/userfiles/files/23039318490.pdfIn PDF document text
- http://b40555.handyfriendship.com/upload/files/76741419102.pdfIn PDF document text
- http://azco.friend-match.com/upload/files/92998204914.pdfIn PDF document text
- http://ntvietnga.com/upload/files/69299025219.pdfIn PDF document text
- https://mmtours.si/uploads/541087281.pdfIn PDF document text
- https://globalcircle.club/userfiles/file/44906155196.pdfIn PDF document text
- https://mp2020.csysadmin.com/ckfinder/userfiles/files/69363154605.pdfIn PDF document text
- http://eternaseguros.net/files/files/41576207078.pdfIn PDF document text
- https://regenerateacademy.com/file/12924817705.pdfIn PDF document text
- http://premo.at/userfiles/file/zesefuve.pdfIn PDF document text
- http://webinaris.eu/ckfinder/userfiles/publics/files/zopilosozaduweze.pdfIn PDF document text
- http://www.stadion-zarya.ru/ckfinder/userfiles/files/webibepagopul.pdfIn PDF document text
- https://noriupapildu.lt/ckfinder/userfiles/files/mikoxalutux.pdfIn PDF document text
- http://itagqatar.zajeltel.com/itag/file/files/36098043235.pdfIn PDF document text
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135a7f86bde8---41383361846.pdfIn PDF document text
- https://kfk-dekoration.dk/images/uploadedimages/file/volaxunoseb.pdfIn PDF document text
- http://indianapit.thriftstorewebsites.net/flash/indianapit.thriftstorewebsites.net/file/28979937636.pdfIn PDF document text
- http://centroolosprato.it/userfiles/files/49561162750.pdfIn PDF document text
- http://sushrutproctology.org/ckfinder/userfiles/files/84764268880.pdfIn PDF document text
- http://chieucoingason.vn/files/safopubobiz.pdfIn PDF document text
- https://makenie.com/upload/files/19195980943.pdfIn PDF document text
- http://jualumnitoronto.com/editor/uploadfiles/74851807096.pdfIn PDF document text
- https://mariapolis.es/ckfinder/userfiles/files/99197656821.pdfIn PDF document text
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/161304f942bdd7---19186466050.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_off0000c466.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC466 | 16848 bytes |
SHA-256: 0017e6ea87b73ee97cca5b2c349a49fb12eea22b183237cf45ebcb6b92c439a0 |
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font_01_sfnt_off0000f02b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF02B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010842.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10842 | 11308 bytes |
SHA-256: d18a6b27eae856f8f5a5caf10eae897cb596365fae6c61c71f85cd5d4dd402c6 |
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