MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely provides instructions for a password-protected archive, a common tactic to evade security gateways. Numerous external URIs were extracted, suggesting the document is part of a link farm designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 6
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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=instalar+android+en+mi+pc PDF link annotation
- http://bekkercoon.ru/ckfinder/userfiles/files/garikuzubagelogoxoxu.pdfIn PDF document text
- https://trompis-tondschungel.de/userfiles/file/bexazerexajagitudinefek.pdfIn PDF document text
- http://www.integra-cr.cz/administrace/ckfinder/userfiles/files/mozilak.pdfIn PDF document text
- https://cafesca.info/ckfinder/userfiles/files/sakavaboxukikuginelerafo.pdfIn PDF document text
- http://datavincity.com/uploads/ckfinder/files/raxixinogatelugadesenuku.pdfIn PDF document text
- http://xn--o39a91gvwm83kbsn.com/FileData/ckfinder/files/20210909_654C3809CEEAAB2B.pdfIn PDF document text
- http://ranaghatpchsschool.org/userfiles/file/90897171651.pdfIn PDF document text
- https://chorland-dining.com/webroot/editor-uploads/files/kuvofu.pdfIn PDF document text
- http://status.cz/UserFiles/File/taxemanesokatazit.pdfIn PDF document text
- http://benetworkingpro.com/ckfinder/userfiles/files/4855459369.pdfIn PDF document text
- http://xn--80ahcjevtqq.xn--p1ai/ckfinder/userfiles/files/timekopu.pdfIn PDF document text
- http://vimar.ua/userfiles/files/78132779980.pdfIn PDF document text
- https://iphonerepairservice.nl/app/webroot/files/userfiles/files/2725343981.pdfIn PDF document text
- http://vanhacollection.com/images/files/muvawuxitujijejamonoj.pdfIn PDF document text
- https://www.rosebankprimary.co.za/inc/ckfinder/userfiles/files/livakejuma.pdfIn PDF document text
- http://fantalife.nl/userfiles/file/94068686147.pdfIn PDF document text
- https://felicitareonline.ro/ckfinder/userfiles/files/84538481900.pdfIn PDF document text
- http://elskup.pl/images/assets/file/sufademutozorefak.pdfIn PDF document text
- http://gdlianyu.com/uploadfiles/file/wamoserukusigotivupafox.pdfIn PDF document text
- https://dcmheavyequipment.com/admin/images/file/1388602367.pdfIn PDF document text
- http://kuehllawpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gixaruw.pdfIn PDF document text
- https://vocembalo.ch/userfiles/file/25153688919.pdfIn PDF document text
- http://gibisch.com/files/files/fitaxiriwefejimi.pdfIn PDF document text
- https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/161340ba941b4d---9472714304.pdfIn PDF document text
- http://fsanaq.com/upload/file/2109031454508845023tgwgjwyu0ax.pdfIn PDF document text
- https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139bdb24e46b---73272976692.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_off0000f3f9.bin103d81999252f0022ec84d5989d353cbc49b1c6c202084a0981fb5bfbb15bf11 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3F9 | 19272 bytes |
font_01_sfnt_off00012574.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12574 | 16792 bytes |
font_02_sfnt_off00013d8b.bin526e3a152f2c96def462296cfa66d5d3dc0cc4ada63a312e15687a822b20ef75 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D8B | 10628 bytes |
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