MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs that function as a link farm, redirecting users to various disposable hosting sites, likely for phishing or malware distribution. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically flags this behavior, suggesting the PDF's primary purpose is to drive traffic to these malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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=les+miserables+book+pdf PDF link annotation
- https://pakianco.ir/data/image/uploads/news/files/66329929901.pdfIn PDF document text
- https://zaragozadenoche.es/upload/files/66232595409.pdfIn PDF document text
- https://singlespeed-switzerland.ch/userfiles/files/91952120154.pdfIn PDF document text
- http://topliving.sk/userfiles/file/konowaxoxotu.pdfIn PDF document text
- http://kustari.net/userfiles/file/25672307149.pdfIn PDF document text
- http://poorclarescork.ie/images/zokigarumulumifutem.pdfIn PDF document text
- https://helicopterleasingservices.com/userfiles/files/71523326522.pdfIn PDF document text
- http://asvpp.fr/pdf/52329253881.pdfIn PDF document text
- http://freeware-software-download.de/uploads/editor/file/34666369779.pdfIn PDF document text
- https://cristalparkhotel.com/ckfinder/userfiles/files/93306755247.pdfIn PDF document text
- http://dangkykinhdoanhkiengiang.com/upload/ck/files/40710628301.pdfIn PDF document text
- http://lynxitservices.com/ckfinder/userfiles/files/73822935097.pdfIn PDF document text
- http://handlpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nojejoziwefuresi.pdfIn PDF document text
- https://pielinks.com/UserFiles/file/29192849008.pdfIn PDF document text
- http://lawfirm.vn/MINH/user_files/file/xusuximu.pdfIn PDF document text
- http://simkoongschool.com/uploads/editer/files/64654906789.pdfIn PDF document text
- https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1613524d1e2def---23241002839.pdfIn PDF document text
- https://cambodiadriverservice.com/userfiles/file/52936632898.pdfIn PDF document text
- http://lsphc.com/userfiles/file///foroludimujudobi.pdfIn PDF document text
- http://hanhthien.net/uploads/file/50838608749.pdfIn PDF document text
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134fc562e746---zexofilelibomawije.pdfIn PDF document text
- http://istihdamhaberleri.com/upload/ckfinder/files/54241535739.pdfIn PDF document text
- http://chipmax.in/chipmax/ckfinder/userfiles/files/56324849110.pdfIn PDF document text
- http://eachfun.com/ckfinder/userfiles/site_eachfun_com/files/kavasovenatabivafi.pdfIn PDF document text
- https://djecijagarderoba.me/userfiles/file/tisanav.pdfIn PDF document text
- http://aranykoronakft.hu/userfiles/file/67475816122.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_off0000d1a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1A8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e9bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9BF | 10648 bytes |
SHA-256: 68bae66058c0441710e5dc39b387c7b256bf3e224290904848056781899a55f7 |
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font_02_sfnt_off000101d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101D7 | 18700 bytes |
SHA-256: d92621032c3549e5a60cd28e97373e45aa64907da44a461f7e81c6f5bdee8715 |
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