MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The presence of numerous external URIs, many pointing to PDF files on disposable hosting, suggests a link farm designed to redirect users to potentially malicious content. The `PDF_SEO_DISPOSABLE_LINK_FARM` heuristic specifically highlights the suspicious nature of these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9804
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 https://krisoc.ru/uplcv?utm_term=best+series+to+watch+in+telegram PDF link annotation
- http://klhl.com/userfiles/file/bipubegijifepaxulupeme.pdfIn PDF document text
- http://i-daa-wl.de/userfiles/68458877574.pdfIn PDF document text
- http://kenshopvn.com/uploads/files/tididoremalevenaluwojigor.pdfIn PDF document text
- http://wmsone.com/eimages/file/somone.pdfIn PDF document text
- http://hzzxtl.com/UploadFile/file/20210905031130955.pdfIn PDF document text
- http://robbes.nl/media/files/58155922524.pdfIn PDF document text
- https://grandiosieventinuziali.it/filesUploads/file/mosojefesuve.pdfIn PDF document text
- http://stagelight.pl/userfiles/files/ludov.pdfIn PDF document text
- https://quangcaomattroi.com/uploads/news_file/97151919024.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/16141746cb920b---24130488576.pdfIn PDF document text
- http://bursaceyizgelinlik.com/images_upload/files/1626329206.pdfIn PDF document text
- http://rialta.ie/userfiles/files/foxefugatapirizu.pdfIn PDF document text
- http://stelmart.ru/userfiles/file/54942780080.pdfIn PDF document text
- http://ngnjl.com/userfiles/files/mureviwitikizisoverogin.pdfIn PDF document text
- https://ajur.rest/uploads/userfiles/file/wobobewinasuxut.pdfIn PDF document text
- http://antwerp-reefer-tournament.be/argt/files/91412874825.pdfIn PDF document text
- http://acrclubinversores.com/files/galeria/files/57475127641.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/161498f56a9f9e---zoxaverib.pdfIn PDF document text
- https://hasekei.jp/userfiles/file/36834385865.pdfIn PDF document text
- http://arniestribu.com/campannas/file/86558411640.pdfIn PDF document text
- https://mywayrtk.com/userfiles/file/29017793701.pdfIn PDF document text
- http://zhongyuemedia.com/filespath/files/20210924160927.pdfIn PDF document text
- http://aow.infogestnet.it/ckfinder/userfiles/files/20097877859.pdfIn PDF document text
- https://reazfarah.com/ckfinder/userfiles/files/71281978186.pdfIn PDF document text
- https://bednidhitraders.com/userfiles/file/bonifavibavorudijotetuna.pdfIn PDF document text
- http://exosushi.com/uploads/files/todes.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b4e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4E3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ccfa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCFA | 10816 bytes |
SHA-256: 03382487c5b447cc0de8b59f3a710edc06531390b6bb4f84b6ed5f78b87926f1 |
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font_02_sfnt_off0000e5d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5D8 | 16268 bytes |
SHA-256: fe509af9bfc3ec0313b4706f48cf8bbab58a58723b08ccb55bf3a0fb58750e58 |
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font_03_sfnt_off00010ef4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EF4 | 16424 bytes |
SHA-256: ef8701eb79685041ba51b48b3ed5be6a2743d899f5b89193a8f0275675b44e26 |
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