MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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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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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://midufefew.ru/award?keyword=ccna+exam+questions+200+125+pdf PDF link annotation
- https://static.s123-cdn-static.com/uploads/4385617/normal_5ff7f345cd10b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4452395/normal_6049effa70a1a.pdfIn PDF document text
- https://cdn.sqhk.co/mujawiru/iig9jg2/nhl_21_player_ratings_islanders.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365591/normal_6019065395344.pdfIn PDF document text
- https://cdn.sqhk.co/kivipemo/uhaPgjX/fire_alarm_testing_report_format.pdfIn PDF document text
- https://cdn.sqhk.co/fosigigamef/XhaNKRT/bluestone_perennials_coupon_shipping.pdfIn PDF document text
- http://lamakexo.scienceontheweb.net/american_historical_fiction_books_for_8th_graders.pdfIn PDF document text
- https://cdn.sqhk.co/baxafapunubi/L5ghggc/90s_popular_music_videos.pdfIn PDF document text
- http://puveputado.sportsontheweb.net/tenosezidubuv.pdfIn PDF document text
- https://cdn.sqhk.co/xetajikok/ghaJegj/assassin_s_creed_identity_apk_mod.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://92fed17e-af34-466b-b3fe-38cd9ef27699.filesusr.com/ugd/192d58_d39e5af063a04fb58e090368d8b80888.pdf?index=trueIn PDF document text
- http://wojibikifi.myartsonline.com/handbook_of_operations_analytics_using_data_envelopment_analysis.pdfIn PDF document text
- https://20996a60-9695-4f45-8fdb-44bdc783da55.filesusr.com/ugd/c57cae_31e6986b1eb447e5be6aaaab21822afb.pdf?index=trueIn PDF document text
- https://590703a0-be71-4d3c-a49f-17767d5969ef.filesusr.com/ugd/656c20_badbd8b38fb949a88df6abb8dd109d34.pdf?index=trueIn PDF document text
- https://b6c9d0de-81a1-4db9-ab7d-8a95af9e63d6.filesusr.com/ugd/b28ae2_c0b9862da76c47afa1be199ff902eb04.pdf?index=trueIn PDF document text
- https://2386e270-bd20-42c1-b3e5-1ba7eaa1d68d.filesusr.com/ugd/b4f0c6_63956191a26241fc9b1f2bbdc96ac3e6.pdf?index=trueIn PDF document text
- https://acd80754-3b70-42c6-a60f-3489f6261da4.filesusr.com/ugd/f1780b_7236d9dad39240bba4c8f555aaf4f8a1.pdf?index=trueIn PDF document text
- https://9df6e0af-a028-4e88-91ba-61a1b37318d5.filesusr.com/ugd/7c1f05_1b9a3c3bb60844a0b4ce5282d9db997b.pdf?index=trueIn PDF document text
- https://4541bc1c-e35c-4de3-bb44-1f53c3e1a56d.filesusr.com/ugd/68f66e_f5d49df04dbc4003b0a6ce427654c3a1.pdf?index=trueIn PDF document text
- https://45dcde1a-aed5-4138-b95e-a0f768a283bf.filesusr.com/ugd/89441e_a8be62bc5ea046e098d5c973f945e124.pdf?index=trueIn PDF document text
- https://972af30b-04c2-4618-b911-83ba0b7fef9e.filesusr.com/ugd/84a5c6_25b2de1391954ad083c010d4dd1d9177.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f7a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7A6 | 5724 bytes |
SHA-256: 08c43a9883ed7a50f27daf90e09219dcdbc32a1eb67e1e4b3ca1f88ae1d66ba9 |
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font_01_sfnt_off00010b29.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B29 | 11504 bytes |
SHA-256: 4ec99c88d2d95489c28e044cf2949ac062e13ca9d99c1001edaf86ad3842afba |
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