Malicious PDF — malware analysis report

Static analysis result for SHA-256 5becd36b28afba7d…

MALICIOUS

PDF

69.0 KB Created: 2021-03-06 13:22:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c5452764397f008714d8eb23e289f5c7 SHA-1: aea5999b8c3a3b9ffe913adefe469eff199a2921 SHA-256: 5becd36b28afba7d4debed1fe21d61b6402842b40040f2284fe92abfd511bfc8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small 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.
  • 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://lozipotod.ru/wix?keyword=foolproof+module+3+final+test+answers PDF link annotation
    • https://cdn.sqhk.co/supesuvepo/gfEMjeL/linkedin_logo_color_change.pdfIn PDF document text
    • https://cdn.sqhk.co/gidetixi/jgqJieC/71449626293.pdfIn PDF document text
    • http://vugekowuzujed.scienceontheweb.net/xuratozawelupigulasedax.pdfIn PDF document text
    • http://vorasim.iblogger.org/zexetagevo.pdfIn PDF document text
    • https://cdn.sqhk.co/zoxowowi/wiarjgQ/65762871190.pdfIn PDF document text
    • https://vudulami.weebly.com/uploads/1/3/5/9/135964857/6d64ef.pdfIn PDF document text
    • https://cdn.sqhk.co/gadukupuwe/mdidijN/xasukuj.pdfIn PDF document text
    • http://walokarora.iblogger.org/sutupofakagipadapudarejo.pdfIn PDF document text
    • http://gejulavofanutar.mygamesonline.org/rigol_ds1102e_100mhz_digital_oscilloscope_review.pdfIn PDF document text
    • https://mukozuzaze.weebly.com/uploads/1/3/4/2/134265885/0e6d6b7b24.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rabatelekovufar.myartsonline.com/la_catedral_del_mar_barcelona_como_llegar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e850b8ac-29bf-4de0-9ae2-8910bf514ae5/13070094459.pdfIn PDF document text
    • http://kedokonox.rf.gd/bollywood_hd_movies_free_websites.pdfIn PDF document text
    • http://bifiwapaz.onlinewebshop.net/wagner_paint_crew_owners_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/enemy_pie_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a3cce9c-e932-4520-98d3-8bec83170b2c/42950347660.pdfIn PDF document text
    • http://radiviwix.onlinewebshop.net/college_algebra_word_problems_solver.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/204ab16c-ea9f-4463-a3f9-25418afc1a27/beget.pdfIn PDF document text
    • https://s3.amazonaws.com/gogoxowiniza/eeo_reporting_ethnicity_categories.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/nopukimopotebag.pdfIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/airlift_application_guide.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_off0000d032.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD032 5400 bytes
SHA-256: d6f9d7673c530393aa99776c4fe47dd5f1be454456248ced27e6ed5147559ffd
font_01_sfnt_off0000e287.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE287 10440 bytes
SHA-256: 91d0c96e32c6c79d9e8b0868574b86793c7f0dceaba5768215dd2cf0fa63e824

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