Malicious PDF — malware analysis report

Static analysis result for SHA-256 f74e8793290222b1…

MALICIOUS

PDF

79.3 KB Created: 2021-03-25 00:45:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 621f1d24276cd6b4c50b5c5ebda38b1a SHA-1: 7489c592f884785f9768bb6a036c67e3ea058832 SHA-256: f74e8793290222b1cbdc235e041bde6b23bb27f907a2689d588d36cae744feca
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains an embedded URL that redirects to a malicious domain, likely intended to host phishing content or a further payload. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of external URIs and the overall detection suggest the document is designed to exploit users through deceptive content and lead them to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The 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.
  • Embedded URL info EMBEDDED_URL
    One 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://botokaw.ru/wix?keyword=lost+person+behavior+dementia
    • https://cdn.sqhk.co/bofagenined/gcYigxl/snow_slingshot_shooter.pdf
    • http://migunovaj.iblogger.org/9516502000.pdf
    • http://pejazadajenatew.getenjoyment.net/venice_italy_map.pdf
    • https://cdn.sqhk.co/pixafosabow/bichejg/58956766205.pdf
    • http://wovugikanagak.scienceontheweb.net/98785895663.pdf
    • http://fezufizibum.mypressonline.com/diseo_y_comunicacion_visual_bruno_munari_gratis.pdf
    • http://jolixasij.sportsontheweb.net/integral_calculus_meaning_in_malay.pdf
    • https://cdn.sqhk.co/zujumatatub/ghijeij/vr_movies_free_online_iphone.pdf
    • http://lerawutevokaj.iblogger.org/66564497589.pdf
    • http://nesorus.mywebcommunity.org/45953196887.pdf
    • http://pixidilivutep.medianewsonline.com/samsung_bd-p1590_blu-ray_player_remote.pdf
    • http://bugiwuxad.medianewsonline.com/axis_bank_fd_rates_2020.pdf
    • https://cdn.sqhk.co/dulunukosep/p2CwKya/empathy_worksheets_for_grade_1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zopuraxikesu.epizy.com/paxamiripavojumiragotik.pdf
    • https://9e705916-5bde-4eb8-be9b-8b3e910fbaf8.filesusr.com/ugd/c7a620_95fe2cd9efb042d1b0ce99d7651b1731.pdf?index=true
    • http://pazutoxun.epizy.com/33910451641.pdf
    • https://e8dc5420-792a-4861-90db-09cfc8d8a7d1.filesusr.com/ugd/1378f5_137e5b7a2c4d48eeb16b3f0e12ace196.pdf?index=true
    • http://bixodog.rf.gd/how_much_does_a_physiologist_make_uk.pdf
    • https://107a3552-ed21-4f5d-95e3-510b6eae4444.filesusr.com/ugd/21bbef_1d2e65df81554b4e8f3a7d1cf3ee80dd.pdf?index=true
    • https://a1359116-1358-4cde-afc5-3600b4bb50db.filesusr.com/ugd/3b0c81_67f4b5bb794c468fb58c3ff3d8c4260d.pdf?index=true
    • https://a4346b84-4611-49ab-b113-80c9188ca613.filesusr.com/ugd/078c79_4e4ce9432fa349bba717e04eb9e9e101.pdf?index=true
    • https://0c2a7d7b-be9d-4ef2-a94c-09ca905cc17d.filesusr.com/ugd/7d21c0_3fd32067dc9d436f8d94dfdc2b184995.pdf?index=true
    • https://ecf8b3bd-8201-449f-a39c-156acd88681e.filesusr.com/ugd/97634b_d65a113141c94d59bcf33be4ab1f9922.pdf?index=true
    • 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.

FilenameKindSourceSize
font_00_sfnt_off0000f8d3.bin
03f56005ded972de0979b60f465a3afb4406563a052f58b6dd756e88b9653fa2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF8D3 5308 bytes
font_01_sfnt_off00010ab5.bin
00797d2679f90a8a9cf7338f0debd4432c92a5dc09af577b7cea7ca5be65f6c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10AB5 11036 bytes

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