MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a URL that appears to be part of a link farm, likely intended to redirect users to malicious content. The document body, though heavily obfuscated, contains text related to academic notes, suggesting a lure to disguise the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://cructi.ru/pbw?utm_term=permutation+and+combination+class+11+ncert+notes PDF link annotation
- https://cdn-cms.f-static.net/uploads/4493905/normal_60252576c8cac.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381971/normal_601391b76ff97.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366993/normal_6020cf1da7bc8.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4485173/normal_5ff713852df55.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386336/normal_602bb4763edc6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4470211/normal_601072d50d910.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/e5a247ac-62c7-4582-a8b1-0af76b6cfde6/77101518415.pdfIn PDF document text
- http://kufujibumufa.pbworks.com/w/file/fetch/144412470/6133062657.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d5ca9790-89a8-4cc5-adc6-6863e525c966/traduo_de_arquivo_de_ingls_para_portugus.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/39da6350-2d4b-4987-a302-459416c7380f/65813850278.pdfIn PDF document text
- http://gitixofipoxu.pbworks.com/f/1029300599.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3a8de6c2-f5c2-495e-8ebe-1632b64561f0/denon_avr_1910_specs.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a1bc8711-dca2-4121-b302-e3b40997904b/sony_xbr55x850c_hdr_settings.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a79dbe94-8989-428d-977e-80257537cdec/rca_voyager_7_16gb_tablet_manual.pdfIn PDF document text
- http://luwivaj.pbworks.com/f/maintenance_technician_job_interview_questions_and_answers.pdfIn PDF document text
- http://mojuseraneno.pbworks.com/w/file/fetch/144624801/galaxy_s8_plus_update_android_9.pdfIn PDF document text
- http://jutifakukap.pbworks.com/f/77470232981.pdfIn PDF document text
- http://vafobotigef.pbworks.com/f/vegelunibetavozipusi.pdfIn PDF document text
- http://gatasulupu.pbworks.com/f/benim_hocam_yaynlar_yds-yksdil-ykdil_video_ders_notlar.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a9105a9b-a5ee-4e5a-8ad2-eadf9a998a90/76114436242.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d651eec4-1537-42ca-af3d-e55d553c25a7/hbr_southwest_airlines_case_study.pdfIn PDF document text
- http://sijomirurefi.pbworks.com/w/file/fetch/144451440/75269137238.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5a9554c9-8310-4f38-9507-d68a74da3d8c/how_to_write_a_zero_hours_contract.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e8e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8E0 | 5160 bytes |
SHA-256: 6ff3e7448c81678f6d46345f42f61442285437dfa76bdc03c3f51b0d56975ecc |
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font_01_sfnt_off0000fa42.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA42 | 13392 bytes |
SHA-256: 54bf73bce7e785e67554562dd98964a9a00efc09833debe633df60a72995ac32 |
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font_02_sfnt_off00012538.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12538 | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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