MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'jacksth.ru', which is likely used to redirect the user to a phishing or malware distribution site. The document's content, though obfuscated, suggests a lure related to educational material, aligning with common social engineering tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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/wix?keyword=geometry+chapter+8+test+form+a+answer+key PDF link annotation
- https://cdn-cms.f-static.net/uploads/4451350/normal_606394991635d.pdfIn PDF document text
- https://cdn.sqhk.co/wogokodu/mIjhihL/panic_button_for_seniors.pdfIn PDF document text
- https://cdn.sqhk.co/vupapevixu/bihgAjc/switzerland_statistics_covid-_19.pdfIn PDF document text
- http://zimidoj.iblogger.org/xavoguwanakoxigarunowe.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4422135/normal_5fc7627d2526d.pdfIn PDF document text
- http://varakeno.iblogger.org/taluf.pdfIn PDF document text
- https://cdn.sqhk.co/xojelumegasi/hgKjdge/movie_quiz_2018.pdfIn PDF document text
- http://runuxop.iblogger.org/timavaji.pdfIn PDF document text
- https://cdn.sqhk.co/gefimiwotux/ehicjbL/regal_cinemas_stockton_holiday_8.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://pujexube.epizy.com/how_to_reset_garmin_approach_g6.pdfIn PDF document text
- https://8c0e102b-efba-4641-b7fc-347c26357927.filesusr.com/ugd/d420ee_fd39ee1f57464115bf18c5179512a774.pdf?index=trueIn PDF document text
- http://gejofizax.rf.gd/attack_on_titan_season_3_opening_1_hour.pdfIn PDF document text
- https://6db1e9a2-4282-4636-8d41-de07325ad911.filesusr.com/ugd/d97b38_9ec528c2d5b74b1fb57e20cf0ee2b212.pdf?index=trueIn PDF document text
- http://tazolupiviroliz.epizy.com/ascending_and_descending_order_worksheets_for_grade_5.pdfIn PDF document text
- http://miripiwamaza.epizy.com/wuxamomivugajasiludetun.pdfIn PDF document text
- http://konajif.epizy.com/66037894911.pdfIn PDF document text
- http://merujepapi.epizy.com/26990582096.pdfIn PDF document text
- http://pepiretivixu.epizy.com/2x4_adirondack_chair_plans.pdfIn PDF document text
- http://keligidi.rf.gd/jared_diamond_upheaval_download.pdfIn PDF document text
- https://9afb1793-bc57-4514-bb46-74e980466609.filesusr.com/ugd/11f207_aaa76b7436b54162b7b4a758b9c05699.pdf?index=trueIn PDF document text
- http://fuginifetulad.epizy.com/watch_journey_to_the_center_of_the_earth_2_123movies.pdfIn PDF document text
- https://d38713d8-f9e0-49bf-8e72-3f46774ce551.filesusr.com/ugd/b3faf5_fc8eb696a0954d1bb9f253b087f0512e.pdf?index=trueIn PDF document text
- http://gofosuxubajo.epizy.com/28471178694.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
- 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_off0000fffa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFFA | 5708 bytes |
SHA-256: c61c74595577095ff5f3959f6d67eaac06cf1f4854ff8f8d457986b751b821f5 |
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font_01_sfnt_off0001135f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1135F | 10924 bytes |
SHA-256: 5f8bc813583bbde73deafb6e0b4827c74834c14aaa662ca9fd0157eeb1178cde |
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font_02_sfnt_off000138dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x138DC | 16072 bytes |
SHA-256: 4ce97752c8d1ed0b0302a1507788019c6b738cc3ee96ca273f61f92c287db7cd |
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