MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was flagged by ML classifiers and ClamAV as malicious, with heuristics indicating it functions as a link farm directing users to numerous external PDF files. The presence of multiple unknown URLs suggests a phishing or malware distribution campaign. Although no scripts were explicitly extracted, the PDF format can embed JavaScript, which is often used to redirect users or exploit vulnerabilities.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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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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://sk-uralstroy.ru/uploads/files/55688443745.pdf
- https://portalkucharski.pl/app/webroot/media/files/10016478891.pdf
- http://ashole.hu/UserFiles/File/50610822471.pdf
- http://nktrading.qa/file/files/43562856394.pdf
- http://medwin.kr/userData/board/file/nuxunulolitanatelusevu.pdf
- http://barefoot.pl/userfiles/file/16739650113.pdf
- https://autosaloncenter.com/uploads/files/95075956513.pdf
- http://evola.it/userfiles/files/18772823847.pdf
- http://usagimatur.com/files/others/gavomepusiv.pdf
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161372641206c8---zipemen.pdf
- https://hongdung.vn/ckeditor/images/files/82315015747.pdf
- http://csc021.com/userfiles/file/20210911154450_m6tbab.pdf
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144644986bad---61211219398.pdf
- https://cdmsig2.com/ckfinder/userfiles/files/1759935005.pdf
- http://erfaspot.com/resimler/files/4777912543.pdf
- http://golden-candies.ru/webroot/files/files/gipedolafenetawab.pdf
- https://adian.eus/files/galeria/files/mezurat.pdf
- https://sfeerweter.nl/userfiles/files/79877972971.pdf
- http://avs-market.ru/admin/ckfinder/userfiles/files/81738625121.pdf
- https://maxlinder.com/admin/assets/ckfinder/userfiles/files/mixetekexijabexanareduzax.pdf
- http://cpgny.com/userfiles/files/26720558231.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=ipad+mini+5+16gb+price+in+pakistan
- https://www.thc.gda.pl/ckfinder/userfiles/files/63036724536.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d9af.bin7e15e4d95fa29a41e2a5076d2879654f88f04ca25327831b703bf9d601d2476f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9AF | 17988 bytes |
font_01_sfnt_off00010884.bin903ac5cab0cacad349431513eae5e38617a507ece2be17d05ddcdde3479a5796 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10884 | 11228 bytes |
font_02_sfnt_off00012274.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12274 | 16792 bytes |
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