MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded URLs, with one specifically pointing to 'jacksth.ru' and a query related to an 'end of the world countdown'. This, combined with the ML classifier and ClamAV detection, strongly suggests a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains metadata indicating it was generated by wkhtmltopdf, a tool often used to create malicious PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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 https://jacksth.ru/aws?utm_term=how+many+days+until+the+end+of+the+world+countdown PDF link annotation
- http://desawigoxikugaw.mywebcommunity.org/nometowigefulula.pdfIn PDF document text
- http://kejumazinanu.mywebcommunity.org/86572573906.pdfIn PDF document text
- http://viwoxufegoger.sportsontheweb.net/30290017448.pdfIn PDF document text
- http://talemine.getenjoyment.net/probability_equations.pdfIn PDF document text
- http://pewujok.mypressonline.com/nopejakikunosedovodesuk.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/cd685b43-25fa-4879-b989-ecfa0dc1fcbb/twilight_book_1.pdfIn PDF document text
- https://s3.amazonaws.com/mexijegedakol/demonology_warlock_8._0_pvp_guide.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cff6c763-686b-4ce7-9338-3128df31ff1c/how_to_change_sanyo_tv_input_without_remote.pdfIn PDF document text
- https://s3.amazonaws.com/divikufifir/buxiwokerixigilatutu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9ecff3be-09e4-4d6e-8782-3ed367dfdc05/the_forgotten_way_dekker.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/824954ed-5a70-4091-aada-d44e52cd4746/16807809969.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/18201acb-f418-4cac-a3a5-d43de0a9b11a/cub_cadet_ltx1042_deck_parts_diagram.pdfIn PDF document text
- https://s3.amazonaws.com/jevelel/aix_certification_study_guide.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4aca12cf-7811-489f-90bc-6d96e8089b39/char_broil_oil_less_turkey_fryer_reviews.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9f5a6d4d-e5dd-453c-94a4-f47243e0012a/dlink_dir_615_als_access_point.pdfIn PDF document text
- https://s3.amazonaws.com/wuzalugiseto/lesapepavemazeledefekux.pdfIn PDF document text
- https://s3.amazonaws.com/xanunafojuloki/lojati.pdfIn PDF document text
- https://s3.amazonaws.com/daraniwekamidir/47576979638.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3677b7e0-dbea-4261-b56e-bdc8c494a48f/wewopaguboxosetuwidaw.pdfIn PDF document text
- http://zutugidod.onlinewebshop.net/bajewosuxuwuroduvefipo.pdfIn PDF document text
- https://s3.amazonaws.com/jepavilutabilel/rajevefolavipegexerafu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/84576722-deba-43e4-ba71-157a494b6d32/conversor_g_l_a_mg_dl.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00014365.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14365 | 5300 bytes |
SHA-256: 8eb290449c34b92fc5dc6b6a50a0bc52f222bdc43f927708331d46a9290df3f6 |
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font_01_sfnt_off00015543.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15543 | 11616 bytes |
SHA-256: 4acb66f23043e59607b93b54a0472a2ad309f66ec4cd76aed82b3a474f4dfde2 |
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font_02_sfnt_off00017cbe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17CBE | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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