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. The heuristic 'PDF_RANDOM_URL_LINK' and 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggest a malicious intent to redirect users to potentially harmful content. The ClamAV detection further confirms the malicious nature of the file, likely a phishing or trojan distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://pistant.ru/uplcv?utm_term=la+biblia+delos+caidos+pdf PDF link annotation
- https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/161408c3203763---xofopalux.pdfIn PDF document text
- http://veterinarioassociatopacinidallatorre.eu/userfiles/files/97207053108.pdfIn PDF document text
- http://zapatosperezcabrera.com/ckfinder/userfiles/files/pifofi.pdfIn PDF document text
- http://veitali.com/upload/files/judalobatiwaru.pdfIn PDF document text
- http://aloisiquadri.it/userfiles/files/38743156188.pdfIn PDF document text
- http://mebizstekla.ru/userfiles/file/94205080393.pdfIn PDF document text
- https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/4cvrrfj5bchob5tvc4n9f46h73/xagufiwikifupomid.pdfIn PDF document text
- https://tgvl.in/uploads/fck/files/74022820836.pdfIn PDF document text
- http://okna-dvere-online.cz/media/upload/upload/file/mivexoketum.pdfIn PDF document text
- http://bestorkate.com/uploads/ckeditor/files/libewutatimuxarisilunenor.pdfIn PDF document text
- http://fitviewer.de/files/file/94956910057.pdfIn PDF document text
- http://szhlfz.net/upload/pimojipulabizufokukije.pdfIn PDF document text
- http://goddesshair.net/upload/users/files/bogafelolarilozej.pdfIn PDF document text
- http://saluteebenesseresas.it/userfiles/files/23475006742.pdfIn PDF document text
- http://schroniskoorzechowce.pl/ckfinder/userfiles/files/miwoziliwikozulav.pdfIn PDF document text
- http://thaide.org/userfiles/file/vanadetamigolanisit.pdfIn PDF document text
- http://gaongonmaiphuong.vn/webroot/img/files/gezakisaromoxi.pdfIn PDF document text
- http://maekalocal.com/Maeka/UserFiles/File/49155675610.pdfIn PDF document text
- http://anpo.vn/upload/files/nivubomajelafa.pdfIn PDF document text
- http://srcchaika.ru/files/uploads/files/40071488576.pdfIn PDF document text
- http://unsersohn.com/images/file/42830248579.pdfIn PDF document text
- https://yptea.com/data/fckeditor/files/5584891559.pdfIn PDF document text
- http://euredit-editions.com/userfiles/file/kipojizofugijasowepu.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_off0000d9b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9B5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f1cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1CC | 10408 bytes |
SHA-256: 573da7ba1b4c65093fbf23c8316b6d9c48b9295acafe7362a14eddb043c5a143 |
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font_02_sfnt_off00010931.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10931 | 22052 bytes |
SHA-256: fd207de871047b7f1de2ca200c38c69472821ecf63f675123fd591efc537d5fb |
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