Malware Insights
This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. It contains a large number of external links, many pointing to S3 buckets with numeric slugs, suggesting a link farm or SEO poisoning tactic. One prominent external URI, https://jacksth.ru/award?keyword=5+steps+of+grievance+procedure+pdf, is likely the primary lure, attempting to trick users into believing it's a legitimate document. While no scripts were explicitly extracted, the PDF structure and the nature of the heuristics suggest it may exploit PDF vulnerabilities or embed malicious JavaScript to redirect users to harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.8115
Heuristics 4
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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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External URI info PDF_URIPDF contains an external URL action
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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=5+steps+of+grievance+procedure+pdf
- https://cdn.sqhk.co/ridijafugemi/fgfXjdi/alarm_clock_no_sound_iphone.pdf
- https://cdn.sqhk.co/bujutinape/Vnhb5Ll/lezunepeken.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/tapelu/57668639448.pdf
- https://s3.amazonaws.com/pidufozu/incident_report_format_fire.pdf
- https://s3.amazonaws.com/pajukovuxetu/ethnicity_choices_on_forms.pdf
- https://s3.amazonaws.com/napoledunadigo/cen_tech_multimeter_battery_test.pdf
- https://s3.amazonaws.com/bokexizometun/nagepof.pdf
- https://s3.amazonaws.com/remavuj/project_almanac_full_movie_480p.pdf
- https://4454cc88-256b-48ad-9013-c0414c72072d.filesusr.com/ugd/67e251_df18434dc8b14b2fa8753cdf8fab67c8.pdf?index=true
- https://s3.amazonaws.com/xafaxotaful/53099195263.pdf
- https://s3.amazonaws.com/nitidadufetenu/busurenezofuzudubaz.pdf
- https://s3.amazonaws.com/befarekogol/politique_dfinition.pdf
- https://s3.amazonaws.com/bokofapig/50625809322.pdf
- https://s3.amazonaws.com/kabisebax/star_format_interview_questions_and_answers_examples.pdf
- https://s3.amazonaws.com/sojaxub/81884070032.pdf
- https://s3.amazonaws.com/mubemutolewe/60355872169.pdf
- https://f4dd034e-00c7-465c-b850-fb2d75accad5.filesusr.com/ugd/769f78_4e11a643f12640959b2d03b868412d0f.pdf?index=true
- https://584abdf6-e408-48d3-a53c-4313a8f82471.filesusr.com/ugd/18ee90_1436effc64d244ec94351ba21cfa0cde.pdf?index=true
- https://s3.amazonaws.com/viboxikuz/how_to_use_hunter_xcore_sprinkler_system.pdf
- https://s3.amazonaws.com/nabifovu/maviwufuzi.pdf
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e260.bin779586a371314529c9422d43f58e3a769398fed9a4166bc3135145a51136e3db |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE260 | 5380 bytes |
font_01_sfnt_off0000f4c7.bind147a7d1c92b89c3fde92c2ab50a8c13d34e572001a01a0d78c3520901c75404 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4C7 | 10596 bytes |
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