MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious. It contains numerous embedded URLs pointing to various PDF files hosted on different domains, suggesting a link farm or redirection mechanism. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM specifically indicates a non-clustered link farm on disposable hosting, reinforcing the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://dirpub.org/editor/ckfinder/userfiles/files/71443740866.pdf In PDF document text
- http://mkconline.com/landmark/ckfinder/userfiles/files/tonufusaludozudefebev.pdfIn PDF document text
- https://keralahappyjourney.com/ckfinder/userfiles/files/17653363136.pdfIn PDF document text
- http://yuanjiangchem.com/upload/files/90548280012.pdfIn PDF document text
- http://mfcpavpos.ru/file/sirevawuva.pdfIn PDF document text
- https://all-stage-meditation.tw/uploads/files/6134da7d8cfa5.pdfIn PDF document text
- http://gesundezellen.de/neu/userfiles/file/10154991742.pdfIn PDF document text
- https://matras-matrasych96.ru/admin/ckfinder/userfiles/files/jugomesivulimakunilit.pdfIn PDF document text
- http://farmaciacogliate.it/userfiles/files/suzetukob.pdfIn PDF document text
- http://vektor28.ru/userfiles/file/rozobimamipezuzizani.pdfIn PDF document text
- https://imagebuzz.net/ckfinder/userfiles/files/taxorebolesazufoj.pdfIn PDF document text
- https://yoimart.com/upload/file/20210903234848.pdfIn PDF document text
- http://bbdecontra.com/userfiles/files/7596607748.pdfIn PDF document text
- https://cardion.dk/gfx/fckimages/file/faravu.pdfIn PDF document text
- http://gurgaontaxi.com/pa/trainstation/uploads/image/file/67520448939.pdfIn PDF document text
- http://keystoparadise.com/userfiles/files/ravajalufutare.pdfIn PDF document text
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/8c9f9d4ad03ddcac908f8656653ed69f/belemudogibiba.pdfIn PDF document text
- http://dabaizhongxue.com/upload_fck/file/2021-9-8/20210908025008522331.pdfIn PDF document text
- http://draftingfloorplan.com/ckfinder/userfiles/files/mokixinutafetaxapiwo.pdfIn PDF document text
- http://xnucleus.com/members/member_images/files/55748334384.pdfIn PDF document text
- https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/q4pf73m53qcmn750qad54flc9j/jeril.pdfIn PDF document text
- http://yaan121.com/uploads/files/202109051509411958.pdfIn PDF document text
- https://beruanglucu.com/contents/files/fagurilek.pdfIn PDF document text
- http://ttmplus.com/userfiles/files/82492908212.pdfIn PDF document text
- https://obermeyer-modemarkt.de/upload/file/zipudixuwidumusixodif.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=adblock+chrome+removePDF link annotation
- 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_off0000dd74.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD74 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f58b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF58B | 10292 bytes |
SHA-256: 5a14fe81006f552ba165b398f195f50ecc369161fe2de1ac10a18885409265a6 |
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font_02_sfnt_off00010caf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CAF | 17196 bytes |
SHA-256: b13602fbf3512ecad4de5dc715d72b5d03be85aa6a15ddbe0f8389e45c3e7abf |
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