MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded URLs, with one prominent URL, 'https://druttle.ru/strik?utm_term=cursos+de+ingl%25C3%25A9s+online+gratis+con+certificado+oficial+unam', disguised as a free English course. Heuristics indicate this is a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. ClamAV detection and ML classification further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 5
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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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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://druttle.ru/strik?utm_term=cursos+de+ingl%25C3%25A9s+online+gratis+con+certificado+oficial+unam PDF link annotation
- http://betmoy57.com/fadipewufisutazivatos7bzxq.pdfIn PDF document text
- http://iclod.tech/kasaganarbfc4.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4448556/normal_5fdf23a04fe1d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4456671/normal_5fd28cc38fc27.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379370/normal_601765f67a676.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368975/normal_603e191d39ebd.pdfIn PDF document text
- http://laitlabs.pro/what_is_shadowing_in_psychologyi1f8x.pdfIn PDF document text
- http://creditscoretracking.info/jaguar_f_pace_reliability_consumer_reportsdc2lt.pdfIn PDF document text
- http://itravelgr.com/garmin_62_smbkj5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4453734/normal_60407935002e7.pdfIn PDF document text
- http://cloudmarket.website/dimensiones_montacargas_cocinalzfrm.pdfIn PDF document text
- http://allieshouseofhope.com/85952289168wnjdc.pdfIn PDF document text
- http://ketousa.site/bounty_hunter_tracker_4_coilscjbn7.pdfIn PDF document text
- http://digitalmicroteter.xyz/a_series_of_unfortunate_events_books_age7tcik.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/pesetufavo/bpsc_ae_mains_2019_answer_key.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ed2c3c2d-fdfc-4fcb-9e04-60fc67c3f2d3/where_to_donate_toys_right_now.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/43f47a36-dab7-49bb-b3df-0a69cda8973a/monster_vs_aliens_episode_10.pdfIn PDF document text
- https://s3.amazonaws.com/papuja/sopenibiso.pdfIn PDF document text
- https://s3.amazonaws.com/pizexopenaxu/guide_du_routard_israel_jerusalem.pdfIn PDF document text
- https://s3.amazonaws.com/tobovunoberiki/zubadusuxe.pdfIn PDF document text
- https://2a983b51-2e13-4971-8c1f-a5bca3ab4353.filesusr.com/ugd/e1a791_2e5f259eeff74ac385a8a86bf6d3e7c4.pdf?index=trueIn PDF document text
- https://01c4c9a3-ee74-4db9-a65d-799443b8dbf1.filesusr.com/ugd/a64c8c_7114e46095a649cdaa7cbacdf837d0de.pdf?index=trueIn PDF document text
- https://1682489e-d94b-4f22-b6a6-c8ecb623ca2e.filesusr.com/ugd/5f226e_cce0464c13d74883bf7e1ea55b72df5e.pdf?index=trueIn PDF document text
- https://3857ddc0-2b33-46ba-b4a8-ebef9b167687.filesusr.com/ugd/5cc0d5_290439ae47d44ae48e883c7793afe2b2.pdf?index=trueIn PDF document text
- https://1a447ccf-a6a5-490c-ad31-399ae8169532.filesusr.com/ugd/cf5184_56adb8ef468f42718ca85d2332aad8dc.pdf?index=trueIn 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00012a20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A20 | 5388 bytes |
SHA-256: dd0b19efa48e21ce96e9b59d9cc1d20aafe6ad617a6272560e71b53d99c3872f |
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font_01_sfnt_off00013c10.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C10 | 1800 bytes |
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0 |
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font_02_sfnt_off0001449e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1449E | 12456 bytes |
SHA-256: 8d4da85a299055baedc4d133f638405d64d860f061b8d5c5e4a3462391151c8c |
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font_03_sfnt_off00016d2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16D2E | 16376 bytes |
SHA-256: c3d0ee408bee49a88931d2ac630a9fb52e88a46fabab5a72aa19e78bbe1d3826 |
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