MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains multiple heuristics indicating malicious intent, including random and SEO-optimized URLs pointing to potentially malicious content. The ML classifier and ClamAV detection strongly suggest this is a phishing or trojan delivery mechanism. The document body, though heavily obfuscated, appears to be a lure related to 'learning guitar book pdf', which is then linked to external URLs designed to download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://lozipotod.ru/award?keyword=learning+guitar+book+pdf PDF link annotation
- https://cdn.sqhk.co/xeposetuge/SjbLgfI/vudovijuxowuluviwofobu.pdfIn PDF document text
- https://cdn.sqhk.co/fezavomol/bjbrGjb/gas_prices_tomorrow_today_nb.pdfIn PDF document text
- https://cdn.sqhk.co/rozamulev/jgjg6lP/bricks_ball_crusher_pc_download.pdfIn PDF document text
- http://onlinekartiadesi.com/valexebesewinaruraturofuvfbpui.pdfIn PDF document text
- http://airet.space/73597076148mmuic.pdfIn PDF document text
- http://titanovyi-filtr.ru/neverending_story_song_movielvmfi.pdfIn PDF document text
- http://twitter-center.com/best_android_phone_2019_to_buycq1hu.pdfIn PDF document text
- http://copyrighthelpbusiness.net/9573233397994oe.pdfIn PDF document text
- http://cabinetsop.xyz/calories_in_dunkin_donuts_small_iced_coffee_with_cream_and_sugarhvlj2.pdfIn PDF document text
- https://cdn.sqhk.co/tunuravaxoxi/iSp4gfE/rowidovetukexifujawem.pdfIn PDF document text
- http://venira.su/nebisasewemosumovusavuriv6syh.pdfIn PDF document text
- http://useraisins.pro/how_to_reprogram_garage_door_remote_craftsman9cwax.pdfIn PDF document text
- http://samoe-samaya.ru/frigidaire_0.3_cu._ft._6-can_retro_mini_fridge_in_blackc0hrh.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/gagotaniwipure/cantina_76_menu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0c9d110b-2df4-465f-b9e1-c414c9da5c2a/letter_of_intent_template_to_do_business.pdfIn PDF document text
- http://romuwoturifitam.epizy.com/can_i_login_to_my_asus_router_remotely.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9393839b-3164-4279-a49e-49dddaf66a94/what_is_organizational_citizenship_behavior_definition.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/93396562-3b94-4cb6-9ca5-623949afabbb/6638420171.pdfIn PDF document text
- https://s3.amazonaws.com/verirejon/39126748108.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ef8f7be5-2938-4bcd-89cb-ca8c68c3e884/bagebikisipolumetikibijo.pdfIn PDF document text
- https://s3.amazonaws.com/jedadokuti/good_will_hunting_tamil_dubbed_movie.pdfIn PDF document text
- http://kowetomad.epizy.com/vudenujomuvelexo.pdfIn PDF document text
- https://s3.amazonaws.com/zumomasugipeno/sobifawali.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_off00010692.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10692 | 5144 bytes |
SHA-256: 47ff8da6cac6a8f4c5d083b433c9c7d6e7329c674f0a405acd53f3326f7739cc |
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font_01_sfnt_off00011827.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11827 | 10720 bytes |
SHA-256: f1818c309f55bce7b6e2a97e6fefffd8b5aff87aa807dd656537dd13bc2699f9 |
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