MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV detection as a phishing/trojan. It contains a large number of embedded URLs pointing to various domains, indicating a link farm designed to redirect users to potentially malicious content. The presence of external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://laborke.ru/uplcv?utm_term=s21+ultra+best+apps PDF link annotation
- http://cosmosimpex.com/app/webroot/ckfinder/userfiles/files/56530338624.pdfIn PDF document text
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16140e66b2de1e---dubizenolumo.pdfIn PDF document text
- http://xdata.pl/app/webroot/img/ckf/files/gozavuponofaxudaxesula.pdfIn PDF document text
- http://sxsasa.org/images_fck/file/1631949707.pdfIn PDF document text
- https://yingzhaoliuart.com/upload/file/zuvevim.pdfIn PDF document text
- http://badaranquehablar.com/userfiles/files/betixuxib.pdfIn PDF document text
- https://lacgl.org/upload/editor/file/riwepomegegapanasubizofa.pdfIn PDF document text
- http://limeitec.com/upfiles/editor/files/gegufujegegevovavodimiva.pdfIn PDF document text
- http://studiotecnicodama.it/userfiles/files/56579510575.pdfIn PDF document text
- https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/9n8ff7l71gqkd0blnkqvjbttp5/4155472902.pdfIn PDF document text
- http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/161457793864b4---savajogekosawipezezubewag.pdfIn PDF document text
- http://daegyung.kr/userfiles/file/20210914114315.pdfIn PDF document text
- https://408of53crownstreet.com/assets/media/files/19334002112.pdfIn PDF document text
- http://strap.sk/uploads/file/11655672941.pdfIn PDF document text
- https://nawaasha.org/userfiles/file/gupubugefisinef.pdfIn PDF document text
- https://essuances.com/ckfinder/userfiles/files/82957777684.pdfIn PDF document text
- http://gzwep.com/img/file/202199235019.pdfIn PDF document text
- https://szalkasszorutacskok.hu/app/webroot/files/content/files/tarok.pdfIn PDF document text
- http://harnettcountyhba.com/userfiles/file/rotomumuronoporuxu.pdfIn PDF document text
- http://cjmfgxfollow.morefriendship.com/upload/files/2425800700.pdfIn PDF document text
- http://vaonhaphatphap.com/images/uploads/files/26544642792.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_off0000ac63.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC63 | 15152 bytes |
SHA-256: 848b5bb50ae68930ac30f6b31058f34bf3589429b1a4f61f32e2aad0b106c586 |
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font_01_sfnt_off0000d2dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2DD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000eaf4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAF4 | 10416 bytes |
SHA-256: 9335e1a9ec02a1df168ee7114715ff22927540c414ec4e9b8f23d5f652435785 |
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