MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded URLs, many pointing to disposable domains, and is flagged by ML classifiers and ClamAV as malicious. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using many links on low-reputation hosting to obscure malicious intent. The primary URL, https://jacksth.ru/award?keyword=frases+celebres+de+la+novela+el+amor+en+los+tiempos+del+colera, suggests a lure related to popular literature to entice clicks.
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=frases+celebres+de+la+novela+el+amor+en+los+tiempos+del+colera PDF link annotation
- https://cdn.sqhk.co/bisuligiga/fnkggPO/3598507994.pdfIn PDF document text
- https://cdn.sqhk.co/didatife/ih2NcNd/animal_restaurant_letters_little_fox_s_diary_2.pdfIn PDF document text
- http://newipufisatag.scienceontheweb.net/mevuvude.pdfIn PDF document text
- https://cdn.sqhk.co/neviragar/XhbTbZo/16289484620.pdfIn PDF document text
- https://cdn.sqhk.co/pisimebuziz/hhajihd/vimimenunumijudizejigure.pdfIn PDF document text
- http://vumajufeboxidik.mywebcommunity.org/xujofikigabuzozez.pdfIn PDF document text
- http://zaxevef.getenjoyment.net/zaloganirinenivebanarow.pdfIn PDF document text
- http://davufemalolaj.iblogger.org/88552638454.pdfIn PDF document text
- http://xijulefabogi.getenjoyment.net/harry_potter_hogwarts_house_test_playbuzz.pdfIn PDF document text
- http://pigigozoruda.mypressonline.com/zurumol.pdfIn PDF document text
- http://gemubanabugawa.mypressonline.com/where_good_ideas_come_from_chapter_1_summary.pdfIn PDF document text
- https://cdn.sqhk.co/kegimovotol/aoF6Hac/vuwetunuvis.pdfIn PDF document text
- http://relazulapele.iblogger.org/example_of_critical_thinking_in_real_life.pdfIn PDF document text
- https://cdn.sqhk.co/sivujazozis/iaZjfjd/webewulibigovurovowe.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://bagugexasorip.myartsonline.com/77142585917.pdfIn PDF document text
- http://vigavanoxe.onlinewebshop.net/38258514019.pdfIn PDF document text
- http://delozaroj.epizy.com/foxebapolumejesu.pdfIn PDF document text
- http://rabatelekovufar.myartsonline.com/what_does_ptc_cust_rollover_ira_fbo_mean.pdfIn PDF document text
- http://baxonifegep.rf.gd/konumedodevatorunizesibux.pdfIn PDF document text
- http://nipimixo.epizy.com/assuming_gender_game_apk.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_off00012a94.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A94 | 5376 bytes |
SHA-256: a475440e6413f498723e2d079328bd8e86d9d634c9309048117c4619008274b7 |
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font_01_sfnt_off00013cc1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13CC1 | 11384 bytes |
SHA-256: 2ab6ac244737a98a910b2e5aaa58e7d609310fb63f416eebd215485bf965326d |
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