MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool often used to create PDF documents from web content. The presence of numerous external URIs, many pointing to disposable domains and link farms, strongly indicates a phishing or malware distribution attempt. The ML classifier's high score further supports the malicious nature of this PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://jacksth.ru/award?keyword=tratamiento+absceso+bartolino+pdf PDF link annotation
- http://usejus.pro/74651972515qthcm.pdfIn PDF document text
- http://allerop.xyz/subatalowm0ch4.pdfIn PDF document text
- https://cdn.sqhk.co/surikuzezun/Lnjaibz/99576720744.pdfIn PDF document text
- http://atomlinux.com/shark_eating_dolphin_lbi_njtqh0w.pdfIn PDF document text
- https://girowotejetut.weebly.com/uploads/1/3/1/4/131406843/favejaxelevemexo.pdfIn PDF document text
- https://cdn.sqhk.co/kakezesarop/ighcdYF/42958939846.pdfIn PDF document text
- http://sallely.xyz/a_thousand_years_song_free_twilight4tvo0.pdfIn PDF document text
- https://lekomitigukajar.weebly.com/uploads/1/3/5/3/135345412/lusebaj.pdfIn PDF document text
- https://cdn.sqhk.co/luwesefizi/eEjbThd/thorax_muscles_posterior.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/jupevuxirapi/how_to_look_at_old_satellite_images_google_maps.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fd519a46-5725-4bee-ae1b-48b7b4ef7fa3/graphtec_cutting_plotter_ce5000-60_price_in_bangalore.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f4b870e8-b0b3-4f22-adda-3568785dc6de/how_do_i_change_the_battery_in_my_g_shock_mudmaster.pdfIn PDF document text
- https://37523d11-79cf-4eb3-ada4-f05de57c71ee.filesusr.com/ugd/275374_937eca26096a446ea2029bd2361e9071.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/sefepugolupalax/pipegokulenazagozub.pdfIn PDF document text
- https://3f9320ff-391d-49df-b192-c557e211a93c.filesusr.com/ugd/469aea_5a9694f3dc7d4d46aa8960ad180281d4.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/poresi/mere_christianity_chapter_5.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/24f90d63-d3c3-4634-a3ae-90b1f9882941/14134191403.pdfIn PDF document text
- https://s3.amazonaws.com/bawalidamovidud/avengers_hd_wallpapers_for_pc.pdfIn PDF document text
- https://e1bd05e7-a2ed-43df-b5fc-9bc8ee0b1a84.filesusr.com/ugd/08acf3_3b8c4e314e8d44e4879de82004a3e962.pdf?index=trueIn PDF document text
- https://52468903-0e2d-47c5-babb-61e1d305d291.filesusr.com/ugd/32777b_4fc49cc7bbe849f086fa8ca457dc7267.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/199e9762-82bb-4c6d-a445-48409b6528d2/68628524731.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6745b78d-ef28-47a1-a07d-74cfb16c07b9/majov.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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010135.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10135 | 5392 bytes |
SHA-256: a657c748dffc80e99fe888084c465dce15038d23c49edeef34f995bcec1f9314 |
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font_01_sfnt_off00011369.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11369 | 11996 bytes |
SHA-256: e055c51e714416992dafd92dd3485f477fcfccbcdcae65bdfb134b5b70e95634 |
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