MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file is identified as malicious by multiple heuristics, including ML classification and ClamAV detection, indicating it is a phishing or trojan delivery mechanism. It contains numerous embedded URLs, with one prominent URL pointing to 'xajibur.ru' which is likely the distribution point for a secondary payload. The document body, though heavily obfuscated, suggests a lure for a free PDF download, aligning with a phishing attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://xajibur.ru/strik?utm_term=engineering+fundamentals+of+the+internal+combustion+engine+pdf+free+download PDF link annotation
- https://cdn.sqhk.co/zirevazul/phhtihb/1849247756.pdfIn PDF document text
- http://senteber.site/reading_korean_for_beginners_bookkrus4.pdfIn PDF document text
- http://situbune.iblogger.org/formative_assessments_for_special_education_students.pdfIn PDF document text
- http://konanozopesan.22web.org/jamaica_outline_clip_art.pdfIn PDF document text
- http://kasiwewevono.iblogger.org/9855503329.pdfIn PDF document text
- https://cdn.sqhk.co/sitopizol/xhfiiic/34945778458.pdfIn PDF document text
- https://cdn.sqhk.co/kajutizikodu/qFhQig1/9_months_pregnant_belly_tightening.pdfIn PDF document text
- https://cdn.sqhk.co/xawodoze/dgi0jh2/what_does_vz_navigator_cost.pdfIn PDF document text
- http://inscarusa.info/whirlpool_cabrio_dryer_error_codeskkcht.pdfIn PDF document text
- http://tuzudidoxofusi.22web.org/nosoxaludimibofanedugezun.pdfIn PDF document text
- http://a1metromovers.com/98779183692l8gu.pdfIn PDF document text
- http://goshop32.site/353646307895f3c7.pdfIn PDF document text
- https://cdn.sqhk.co/mezomabesoki/aCihFgi/nabucco_va_pensiero_free.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://sotenuzalarabi.epizy.com/63191306198.pdfIn PDF document text
- http://kazigolukujo.epizy.com/jiwejozeguzoverosepezopa.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/13790a2e-36eb-444e-a3ff-dd309f733704/33424524035.pdfIn PDF document text
- http://pidosowot.epizy.com/how_many_cubic_feet_is_the_kenmore_80_series_washer.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8b41806b-edab-4bad-94a8-3244ea7ec966/xufep.pdfIn PDF document text
- http://baloxes.epizy.com/lomelufolasuk.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6db51dfa-f746-4254-8902-da341fb9889b/kenwood_kdc-bt648u_protect_mode.pdfIn PDF document text
- https://s3.amazonaws.com/wajibile/sports_day_invitation_card_word_templates.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1ce1d3bb-912f-41ca-a718-a217cf544a77/41311515196.pdfIn PDF document text
- https://s3.amazonaws.com/bubodeliza/25315757313.pdfIn PDF document text
- http://xisubux.epizy.com/49595342907.pdfIn PDF document text
- http://wokupepafi.rf.gd/arcgis_online_feature_layer.pdfIn PDF document text
- https://s3.amazonaws.com/mujevubutukoxu/69272561682.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_off0001a522.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A522 | 5756 bytes |
SHA-256: 92f8857b3b4970e40c0777cb8b9805c1994a8977cf99303161eff058998b6c1e |
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font_01_sfnt_off0001b8ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B8AC | 11404 bytes |
SHA-256: 60430494e76c8d24c68965def8c34d27a4b140c7fb4d7e0e755a57c238b4b567 |
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