Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bcfa016260dc58a…

MALICIOUS

PDF

73.1 KB Created: 2022-04-04 15:34:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: fa590b8fa9f97875fc708da264e34007 SHA-1: 8e5f2d90c62c355c2568d9896dc4d5a807600eef SHA-256: 3bcfa016260dc58a89edaaf8e50b95e707b4b58bddb1ff9be7596d9742329a48
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 7

  • 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.
  • Travel-support phone-number stuffing scam high SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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 http://www.barbantie.com.br/admin/plugins/ckeditor/kcfinder/upload/files/48256499724.pdf In PDF document text
    • https://schodyperfekt.pl/user_upload/file/28674004986.pdfIn PDF document text
    • https://segukikiregitep.weebly.com/uploads/1/3/1/8/131856439/760184ed.pdfIn PDF document text
    • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16223409d4b547---70374284858.pdfIn PDF document text
    • https://vebaxifi.weebly.com/uploads/1/3/4/3/134360040/buzovopijipa.pdfIn PDF document text
    • https://altinone.cz/files/ckfiles/file/pamirega.pdfIn PDF document text
    • http://smileorganic.net/smileorgfarm/filesupload/File/zezevoxakirebudakatiluza.pdfIn PDF document text
    • http://elitakhealing.com/ckfinder/userfiles/files/44400081580.pdfIn PDF document text
    • https://zofodepeva.weebly.com/uploads/1/3/5/3/135318354/f8fdc.pdfIn PDF document text
    • http://theheavent.com/userfiles/files/japezi.pdfIn PDF document text
    • http://sloba.org/media/uploads/files/kapibakowodogud.pdfIn PDF document text
    • http://yiai.wang/upload/files/26276844336.pdfIn PDF document text
    • https://gepagalegizexu.weebly.com/uploads/1/3/4/4/134478943/vunorove.pdfIn PDF document text
    • https://kufifelukabi.weebly.com/uploads/1/3/5/2/135297374/5905072.pdfIn PDF document text
    • https://megatekspb.ru/sites/default/files/uploads/sapurulozutunun.pdfIn PDF document text
    • http://aadcnfgl.netsociality.com/upload/files/nunomedirulemafepul.pdfIn PDF document text
    • http://krokodilok.hu/_user/file/movibutoxuwuwufo.pdfIn PDF document text
    • http://www.findvoters.com/userfiles/file/89548876126.pdfIn PDF document text
    • https://vesokawewewavi.weebly.com/uploads/1/3/1/3/131382886/mokagokobuwo.pdfIn PDF document text
    • https://terokusaf.weebly.com/uploads/1/3/5/3/135347070/9292436.pdfIn PDF document text
    • https://juzasofudabin.weebly.com/uploads/1/3/0/7/130775050/simemufupijud-derasupenijatu-likubu-fuvozokefe.pdfIn PDF document text
    • https://guravigipide.weebly.com/uploads/1/3/2/8/132815190/fubat-dejolaxotizejem-piruvi.pdfIn PDF document text
    • http://globalwan.jp/uploads/files/biraxewejeboxexogemetemo.pdfIn PDF document text
    • https://gubagomokugexat.weebly.com/uploads/1/3/3/9/133988684/diloluvita.pdfIn PDF document text
    • https://vnmmalta.com/userfiles/file/jerafexudatuze.pdfIn PDF document text
    • https://fecuq.co.za/YmrXLWy8?keyword=how%20to%20get%20battery%20out%20of%20alcatel%20flip%20phonePDF link annotation
    • 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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000b8f0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b8f0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b8f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8F0 16420 bytes
SHA-256: cc61756f9a7514be605919e383ee5d0ca6a2874168cbc22d4b8b05226012a480
font_01_sfnt_off0000e38d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE38D 11024 bytes
SHA-256: 9629914bf9d15808d887d8f2ab074c3dcae63f6ed15f454509c76017e4ed380a
font_02_sfnt_off0000fcf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCF7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1