MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file is a PDF that contains numerous external links, a technique often used for SEO spam or to redirect users to malicious sites. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL points to a domain associated with potentially malicious activity, while other links lead to S3 buckets that may host further payloads or be part of a link farm.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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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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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://nipisod.ru/award?keyword=essentials+of+biophysics+p+narayanan+pdf+download
- http://nomevojererekan.22web.org/breville_juice_fountain_cold_plus_recipes.pdf
- http://tigafik.mygamesonline.org/41039118482.pdf
- http://zosigar.iblogger.org/cessna_182q_poh_download.pdf
- https://mafidusat.weebly.com/uploads/1/3/4/1/134109097/2d1c76dbd949.pdf
- http://niwopofe.scienceontheweb.net/tunajosirisugu.pdf
- https://pejexiguwela.weebly.com/uploads/1/3/1/1/131164442/b887a5b3d6be35.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/gewuwasi/32762728394.pdf
- https://s3.amazonaws.com/zuniverijesud/ahista_ahista_movie_hd_video_song.pdf
- http://sogisujomixugo.epizy.com/tizugukeforuruwabifovanuk.pdf
- https://s3.amazonaws.com/legesiliv/iu_plagiarism_test_answers_quizlet.pdf
- https://s3.amazonaws.com/mesixadelomomo/51306759267.pdf
- https://s3.amazonaws.com/kavalukato/dolmen_mall_tariq_road_store_guide.pdf
- https://s3.amazonaws.com/sasufufa/78330873354.pdf
- https://s3.amazonaws.com/vibasujefir/vector_addition_by_components_worksheet_answers_the_physics_classroom.pdf
- https://s3.amazonaws.com/fadupazageraf/timovokajuxekerojidijoker.pdf
- https://s3.amazonaws.com/libeganot/pedoni.pdf
- https://s3.amazonaws.com/miwolezedubujoz/national_incident_reporting_system_nhs.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d06d.bin7125eba71ac4eedb86c64b7b0ea269dd42a9d2eaa0512fb7e048cc1ccdd9bb74 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD06D | 5536 bytes |
font_01_sfnt_off0000e34a.bin162457f60f4b220e048817c4ef2a6a976b7e467b7df6cf5d9f8b6fa6f67667cf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE34A | 10484 bytes |
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