Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9ed9c7acac45a99…

MALICIOUS

PDF

76.0 KB Created: 2021-02-28 12:29:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 065d0c650cda04b1764fb0bf440b98d8 SHA-1: 4ad56c55ce7e8d5f7e61c8ae337f0629e6b016fc SHA-256: e9ed9c7acac45a9902851d981feb737f631808e95d55e74e2997bbecfe04442c
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of an external URI and the overall classification suggest the document is designed to lead the user to a malicious site, potentially to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/strik?utm_term=edgar+allan+poe+who+is+annabel+lee PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4446490/normal_5fde8e5da1022.pdfIn PDF document text
    • https://cdn.sqhk.co/kagixepo/2WjdhiN/rifivadazojovu.pdfIn PDF document text
    • https://cdn.sqhk.co/nokotadi/iihgYtM/tigry_piano_for_piggy_obby_mode.pdfIn PDF document text
    • http://load-bcp.com/disgraced_ayad_akhtar_characterso5qut.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461509/normal_6007a50f578b0.pdfIn PDF document text
    • https://cdn.sqhk.co/pategazikiw/eSjgxPa/fifth_edition_character_sheet_pro_apk.pdfIn PDF document text
    • http://molotkov.site/97292841365972zl.pdfIn PDF document text
    • http://help-business-media.com/drivers_log_book_template_freean421.pdfIn PDF document text
    • https://cdn.sqhk.co/xedufoga/oibuujh/41790892413.pdfIn PDF document text
    • http://9gusevshop.space/how_do_you_get_to_level_2_on_thinkorswimr406p.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402267/normal_5ff259e85f88c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4504870/normal_6002f1695e0e0.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/zuniverijesud/fulobusapefatoxi.pdfIn PDF document text
    • https://s3.amazonaws.com/zupenafud/varot_bangla_movie_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/neporezofov/80588401354.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/metformin_500_uses.pdfIn PDF document text
    • https://s3.amazonaws.com/ribowexulo/wobozota.pdfIn PDF document text
    • https://s3.amazonaws.com/bizamesuwepe/dream_theater_systematic_chaos_full_album.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_off0000ecb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECB0 5412 bytes
SHA-256: 5aa49af0b3534a97360f5ca09524bf72b5c254481e9e867be2d1f1476ff39e64
font_01_sfnt_off0000ff1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF1C 10452 bytes
SHA-256: 81a3289f40f104dd92967e333530748c14338263579ca58caf9fabe13ec8e1ff

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