MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. It contains a large number of external links, suggesting a link farm or SEO manipulation tactic. One of the embedded URLs, 'https://leonvi.ru/strik?utm_term=which+amino+acids+contain+nitrogen', is directly associated with the PDF's content and is likely part of the malicious infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9946
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 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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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://leonvi.ru/strik?utm_term=which+amino+acids+contain+nitrogen PDF link annotation
- https://cdn.sqhk.co/sadirorig/bCM9GQf/anthill_farms_abbey-_harris_pinot_noir_2016.pdfIn PDF document text
- https://cdn.sqhk.co/tategupet/5uhijhS/what_time_does_party_city_near_me_open.pdfIn PDF document text
- https://cdn.sqhk.co/fibafape/ejevZSo/30._4_excretory_system_worksheet_answers.pdfIn PDF document text
- https://cdn.sqhk.co/darojopul/bHijhea/6752700905.pdfIn PDF document text
- https://cdn.sqhk.co/pivatiwon/z7hajbm/interview_coaching_answers.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://s3.amazonaws.com/jefazaxal/83894790185.pdfIn PDF document text
- https://s3.amazonaws.com/xukanomarexumu/62822708090.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e93e8ff7-d875-4dc4-8b99-2900956385f5/2000_chevy_s10_service_manual_free_download.pdfIn PDF document text
- https://s3.amazonaws.com/ropuba/endocrine_system_is_made_up_of_which_of_the_following_structures.pdfIn PDF document text
- https://s3.amazonaws.com/tezude/9560296502.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/72d5843e-e808-47b0-aa50-7a1853197057/vufefirusejulu.pdfIn PDF document text
- https://s3.amazonaws.com/pidufozu/cual_es_el_precio_del_petroleo_en_la_actualidad.pdfIn PDF document text
- https://s3.amazonaws.com/jowutoneranemuk/authentic_assessment_definition.pdfIn PDF document text
- https://s3.amazonaws.com/pirofopafu/books_like_the_eyes_of_the_dragon_stephen_king.pdfIn PDF document text
- https://s3.amazonaws.com/sefabe/starbucks_barista_espresso_machine_user_guide.pdfIn PDF document text
- https://83d12552-0bc1-4415-b221-1da25caacb9b.filesusr.com/ugd/1e11d0_566390f276b1448497fe108e68627e63.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/divexikav/82431577140.pdfIn PDF document text
- https://s3.amazonaws.com/xeropizuwe/michael_connelly_the_burning_room.pdfIn PDF document text
- https://828c6a01-da61-4814-986a-f72e64f4f334.filesusr.com/ugd/cdfdba_c482a5118ea4418db55a689dbe470fb4.pdf?index=trueIn PDF document text
- https://770603ce-cae8-48b7-b4e8-6e15b9dac1cd.filesusr.com/ugd/e975af_9f01ac99bf0b4f8783e1b78d2724a361.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/magapeguwabe/oxford_english_phonetics_dictionary_free.pdfIn PDF document text
- https://s3.amazonaws.com/pusolefosex/boilermech_annual_report_2017.pdfIn PDF document text
- https://s3.amazonaws.com/gezetega/gemakabevupikanes.pdfIn PDF document text
- https://s3.amazonaws.com/zuwosil/51661862980.pdfIn PDF document text
- https://def26600-86c9-4442-a738-094ddf2992d1.filesusr.com/ugd/eb5a6a_06656b827ba54fd1be33ee251a10195e.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/018811df-fd4e-46fd-91f8-46956604789e/vibozolinezu.pdfIn PDF document text
- https://s3.amazonaws.com/vikukinumet/asvab_practice_test_math.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/87b0b76a-a3d4-42a6-adf1-c5b9c50c1164/fire_and_ice_hvac_wilmington_nc.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e3f2a583-1bf7-472f-bb1b-6e138feee30f/dajexume.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_off0000f2e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2E2 | 5124 bytes |
SHA-256: 918c120ccaa771bbe5b92c43b582ba442b7175976fd0abf8ab1fcd8d234a6045 |
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font_01_sfnt_off00010421.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10421 | 10032 bytes |
SHA-256: 9101740d8dff207b97a3994ac2a3d31173b7091035e72c25788b834f211d08b0 |
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font_02_sfnt_off0001267c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1267C | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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