Malicious PDF — malware analysis report

Static analysis result for SHA-256 03b40fb29dc39453…

MALICIOUS

PDF

67.2 KB Created: 2021-03-08 05:51:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 009caf8b8767b436504ece94a8feb2df SHA-1: cd8e7c9878256091b9eefe13daeeb79cf1b65335 SHA-256: 03b40fb29dc39453188acda9bf3502608950b2a9d4983a1b07deea9edc656e84
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small 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.
  • 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://soxebez.ru/award?keyword=sel+351r-2+manual PDF link annotation
    • https://cdn.sqhk.co/pepupiribojo/hOJpjbe/gmail_login_email_account.pdfIn PDF document text
    • https://cdn.sqhk.co/niramojiga/gi6gen4/real_chess_online.pdfIn PDF document text
    • http://ductsunlimitedins.com/fupotulemujegozejjxht.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487005/normal_6009a7373d9ea.pdfIn PDF document text
    • https://cdn.sqhk.co/litalile/ihehf82/batupunowewiwaf.pdfIn PDF document text
    • https://cdn.sqhk.co/bepemuno/bjgLCii/como_calcular_el_iva_e_isr_retenido.pdfIn PDF document text
    • https://cdn.sqhk.co/kutupejotige/7jajcXs/9693417897.pdfIn PDF document text
    • https://cdn.sqhk.co/sisadenev/WTiGja9/1138196669.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450240/normal_5feb7b21bd982.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382631/normal_5fed2e7956398.pdfIn PDF document text
    • https://cdn.sqhk.co/kikolibub/NPlihyq/8553795343.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379385/normal_5fe526d42c412.pdfIn PDF document text
    • http://autoport76.online/24757810694zkazz.pdfIn PDF document text
    • http://idealicacolumbia.site/samsung_un46eh5300f_service_manual75692.pdfIn PDF document text
    • http://christinaanddavid2019.com/native_instruments_s4_mk2_vs_mk3xm7hc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://6f2fb29c-15f2-4b08-b525-3eb91a7f0a41.filesusr.com/ugd/c3548c_86d959c68f6744d8b2d63f7b85a65e0e.pdf?index=trueIn PDF document text
    • https://f904ef53-caa1-4f0f-8a97-c50675c03ece.filesusr.com/ugd/2f8cea_dcd4dbd3d8194f51b18aa9ef8643df5c.pdf?index=trueIn PDF document text
    • https://6ce95562-7558-49ee-a7b0-b3003db3b0e9.filesusr.com/ugd/d13e1f_81bc50a02ee845018e4411daaf803074.pdf?index=trueIn PDF document text
    • https://42190e62-4dca-482d-a077-ae7b222d7779.filesusr.com/ugd/b91392_f150b949fedb4edba231cf6aa5ee0ce1.pdf?index=trueIn PDF document text
    • https://368af19b-b9be-4417-8ea7-dfc4611f9fec.filesusr.com/ugd/abd4c0_b9568a4a064a4fc5985bc58cee4c2a85.pdf?index=trueIn PDF document text
    • https://e181841a-b5e1-4712-8d88-fcb0da9a1487.filesusr.com/ugd/2f8cea_8e097e3ffc864f9f9d26af9fa648725c.pdf?index=trueIn PDF document text
    • https://eb72eaa1-ef55-40a3-a653-f6d21bccf295.filesusr.com/ugd/54913d_1cdca1bf9f804e90a2968ba3d50388e3.pdf?index=trueIn PDF document text
    • https://adc0bc6f-2b4d-4951-bce0-9128d215fa34.filesusr.com/ugd/5ea4d5_7dd885eef66d4a78a0ffc996c7416ae3.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.

FilenameKindSourceSize
font_00_sfnt_off0000cf0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF0D 5260 bytes
SHA-256: d1130b8f46db14b2489ee103eb35b15bfe0206c27e11c93a9bdac40e3fdfb4c7
font_01_sfnt_off0000e0e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0E4 9200 bytes
SHA-256: f12b5c211f9ac68229211b15e9eb67ea7255b585b7d38f142dc07613f622c071

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