Malicious PDF — malware analysis report

Static analysis result for SHA-256 65404f9f5ca3d5c3…

MALICIOUS

PDF

75.5 KB Created: 2021-03-12 18:42:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: ba4d8091de29171c3717939004660df1 SHA-1: f7fbc4b9abf95d847de73e493f67cde7754f4ced SHA-256: 65404f9f5ca3d5c3058bee8e670ce6713f207e60a43fe67dc10dea0bbdc6e586
104 Risk Score

Malware Insights

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

The PDF file contains a malicious ML classifier score and a ClamAV detection for 'Pdf.Phishing.Trojan'. It also embeds a URL that appears to be a lure for downloading a movie, which is a common phishing tactic. The presence of a download button heuristic further supports this. The document body, though heavily obfuscated, contains text related to movie downloads and the authoring application, suggesting a social engineering attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://xezojetit.ru/strik?utm_term=gone+series+full+movie+download+in+tamilrockers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4481675/normal_600efecb63f64.pdfIn PDF document text
    • https://cdn.sqhk.co/vagekoxes/zjfng6G/balejiwetufox.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374710/normal_602eed9cf1420.pdfIn PDF document text
    • http://vashobereg.com/fnaf_blender_modelgr9xp.pdfIn PDF document text
    • http://womenita.fun/glass_sword_book_reviewtim87.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390374/normal_6027a53422bec.pdfIn PDF document text
    • https://cdn.sqhk.co/zobunifi/jTidwWY/gst_status_karnataka.pdfIn PDF document text
    • https://cdn.sqhk.co/waladoved/qmFShgX/yeezy_700_wave_runner_sizing.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lakadutof/codycross_answers_group_41_puzzle_3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ba2e34a-687b-4e5e-a2ac-be2d9e88de6b/27483465097.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fcade6a-90b3-4e9c-b2f8-9c721891a7b9/calendario_septiembre_2020_chile_con_feriados.pdfIn PDF document text
    • https://s3.amazonaws.com/jezekemunidup/89452537260.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef713feb-b77d-483a-a880-8f2a96cc5e61/how_to_connect_ilive_soundbar_to_tv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/427aabba-261d-41aa-ac8a-71c012723854/96036941159.pdfIn PDF document text
    • https://s3.amazonaws.com/sagotomagin/elaboracion_de_mapa_de_riesgos_peru.pdfIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/convert_cfg_into_chomsky_normal_form.pdfIn PDF document text
    • https://s3.amazonaws.com/selivuvumepaveb/anticancer_david_servan-_schreiber.pdfIn PDF document text
    • https://s3.amazonaws.com/bomifabipi/2012_chevy_sonic_manual_review.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/gizonimetuwujeka.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA89 5412 bytes
SHA-256: 0d72090c8335949422ac3f57a903344cd511174e6bb30dee7c7eb0bf343889a9
font_01_sfnt_off0000fcf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCF7 10464 bytes
SHA-256: d2a39d597e6adc5d48671d7d21486753f80ee57fe3cbb6353388acdeed9c1d9d

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