MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external resources, many of which are hosted on disposable domains and appear to be part of a link farm designed to obscure the ultimate destination. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to deliver a second-stage payload. The presence of PDF_RANDOM_URL_LINK and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://garglob.ru/uplcv?utm_term=v+id+mate+app+download PDF link annotation
- https://icrs-as.com/userfiles/file/nidexavixuxazedide.pdfIn PDF document text
- http://millecolori.it/images/file/37437200649.pdfIn PDF document text
- http://agmapure.com/upload/files/xakupusivigaroseva.pdfIn PDF document text
- http://divapharma.com/uploaded/file/65373459436.pdfIn PDF document text
- http://bbbo.handyfriendship.com/upload/files/74697839839.pdfIn PDF document text
- http://watdoenwevandaag.nl/upload/7768354842.pdfIn PDF document text
- http://fornacedelia.it/userfiles/files/37257181578.pdfIn PDF document text
- http://www.ruben.pl/ckfinder/userfiles/files/80047999833.pdfIn PDF document text
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1614177f0e9d90---tawifegir.pdfIn PDF document text
- https://colegiumaniucarei.ro/ckfinder/userfiles/files/ronodipupukakirip.pdfIn PDF document text
- http://thamcohoaian.com/webroot/img/files/99962887800.pdfIn PDF document text
- http://afghansolar.com/userfiles/file/butivorusenexoranolej.pdfIn PDF document text
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/vc300frc9mcfj19ohmf23k90bo/39705276935.pdfIn PDF document text
- https://vhssirimpanam.org/ckfinder/userfiles/files/70647409404.pdfIn PDF document text
- http://ambulatorioveterinariosantanna.eu/userfiles/files/46979540369.pdfIn PDF document text
- http://www.its-dph.cz/admin/fckeditor/editor/userfiles/file/41638297749.pdfIn PDF document text
- http://abcbyspu.com/ckfinder/images_store/files/70023599226.pdfIn PDF document text
- http://propertiesforrent.com/userfiles/file///nurotejuvoporeveto.pdfIn PDF document text
- http://runhouchem.com/upload/files/tazopupijitadibugikavijir.pdfIn PDF document text
- https://ruh-center.ru/userfiles/file/1405005991.pdfIn PDF document text
- http://flapboxes.com/userfiles/files/96563348659.pdfIn PDF document text
- http://thermocomfort.ca/userfiles/file/fofobivij.pdfIn PDF document text
- http://caerulumpharma.com/upload/files/97688017570.pdfIn PDF document text
- http://caythuocdangian.net/images/files/zusaxogesawekeveruxejiki.pdfIn PDF document text
- https://florerialafloresta.com/ckfinder/userfiles/files/xuzeg.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_off0000dc53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC53 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f46a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF46A | 10340 bytes |
SHA-256: efd03792e389051c23bd9c43f8e51e9bfcb9dd91d2fa913e3d3c9196072ff434 |
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font_02_sfnt_off00010bb3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BB3 | 18180 bytes |
SHA-256: 8d22ad83dd15c77fddefb912d53440af76049b0b2ac2aecc6e8739b1f9d736ec |
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