Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8722dd8750d8dea…

MALICIOUS

PDF

70.3 KB Created: 2021-09-20 02:05:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 4e7a132be4a50bac37862da512f7b586 SHA-1: 0a8faaf08d0bfb01db1f9af3cb9484af582196d8 SHA-256: f8722dd8750d8dea01a7440327ec2c655c55eccbe9c3b0c5f042e7bdac44d8e1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

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
  • 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://chcial.ru/uplcv?utm_term=watch+tv+shows+putlocker PDF link annotation
    • https://ropaalmayoreo.com/images/userfiles/file/81068254117.pdfIn PDF document text
    • http://onelove.cz/file/88822921683.pdfIn PDF document text
    • http://markone-tools.com/upload/files/97795584830.pdfIn PDF document text
    • http://sarica.com.tr/ckfinder/userfiles/files/82937722033.pdfIn PDF document text
    • https://detectagsafety.com/ckfinder/userfiles/files/kupevujetasonopuzebonil.pdfIn PDF document text
    • https://thailonghoang.vn/upload/files/99758036452.pdfIn PDF document text
    • https://calendarsunrooms.com/userfiles/files/dikoziwolebozatiboro.pdfIn PDF document text
    • http://think6.net/ckfinder/userfiles/files/20210920061305.pdfIn PDF document text
    • https://franchisefarm.franchiseharbor.com/files/files/59793163498.pdfIn PDF document text
    • http://sgo-bage.com/public/files/files/vakugidivabesuminab.pdfIn PDF document text
    • https://szekszardportal.hu/userfiles/file/jisufed.pdfIn PDF document text
    • http://cheliabinsk.realxenon.ru/uploads/files/40819792133.pdfIn PDF document text
    • https://mlbcsimleague.com/ckfinder/userfiles/files/89387726014.pdfIn PDF document text
    • http://rayanchem.com/d/files/wupetiduto.pdfIn PDF document text
    • http://www.vandiestbrandstoffen.be/uploads/files/80277433490.pdfIn PDF document text
    • http://youngthisyear.com/ckfinder/userfiles/files/sexoruxuvivubila.pdfIn PDF document text
    • https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/2e22caa512684c1fe4ca337ab58e8303/jesusojigepalibawori.pdfIn PDF document text
    • http://xn--h49al71atridzo.com/userData/board/file/jibivujemojinedeguwolut.pdfIn PDF document text
    • http://citty.org/images/uploads/file/34015500084.pdfIn PDF document text
    • https://lexcyberia.com/userfiles/files/35673581547.pdfIn PDF document text
    • http://mimarathi.live/assets/ckfinder/core/connector/php/uploads/files/xebup.pdfIn PDF document text
    • http://muaah.ca/userfiles/files/zexuxutoveforipovemi.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b242.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB242 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ca59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA59 10612 bytes
SHA-256: 2af14553800129dc79826b17d7682176dc96c34fb8da11777754b241c3a19acd
font_02_sfnt_off0000e2e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E7 16032 bytes
SHA-256: 1a55521d09956a6c1755722bb6ab79f88312ddabb803733e33854316d763b715

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