Malicious PDF — malware analysis report

Static analysis result for SHA-256 b618b27a39d3af57…

MALICIOUS

PDF

75.9 KB Created: 2022-05-26 03:40:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: f88186ee1b6ac8c1f03770bbc8fb8380 SHA-1: c9c4ceb116ebfc1c967d6091b27dcc45a29a6143 SHA-256: b618b27a39d3af57e98addee0ea020d1f6f96e965c531909eeae08f4523b2226
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://podar.co.za/YmrXLWy8?keyword=updgme%20merit%20list%202019%20pdf%20%20form%20pdf%20format PDF link annotation
    • https://www.worldpco.org/includes/js/ckeditor/kcfinder/upload/files/15987658619.pdfIn PDF document text
    • https://registratieplatform.nl/bestanden/files/96975941618.pdfIn PDF document text
    • http://www.deopendeur.org/imgUser/file/sadog.pdfIn PDF document text
    • https://architektor.ru/uploads/file/pizumofitusogur.pdfIn PDF document text
    • http://genevacars.ru/public/file/68018800348.pdfIn PDF document text
    • https://stvietnam.net/luutru/files/173917023.pdfIn PDF document text
    • https://dom4m.com/userfiles/files/zomolerobarogudomoxor.pdfIn PDF document text
    • http://verlauf-ekb.ru/admin/ckfinder/userfiles/files/48306938289.pdfIn PDF document text
    • https://geneolock.com/ckfinder/userfiles/files/95892467479.pdfIn PDF document text
    • https://get-insurance.in/ckfinder/userfiles/files/rifokudifot.pdfIn PDF document text
    • http://cambresisemploi.fr/ckfinder/userfiles/files/foxavifoxigiw.pdfIn PDF document text
    • http://matraholding.hu/images/userfiles/files/wiliruk.pdfIn PDF document text
    • http://coffeexclusive.co.uk/kcfinder/upload/files/97549012639.pdfIn PDF document text
    • http://interel-rus.ru/test/sites/default/files/file/63887523758.pdfIn PDF document text
    • http://7serve.org/userfiles/file/20220521071351.pdfIn PDF document text
    • https://campestrechihuahua.com.mx/kcfinder/upload/files/lirejonijiva.pdfIn PDF document text
    • http://print-printonline.com/ckfinder/userfiles/files/buxazituzogav.pdfIn PDF document text
    • https://airsoft1.ro/files/file/93573856017.pdfIn PDF document text
    • http://notariocprietoa.com/notaria/documentos/files/61060629690.pdfIn PDF document text
    • https://reparation-mobile.net/userfiles/file/lowatilotazeji.pdfIn PDF document text
    • https://febrerasesores.com/uploads/kcfinder/upload/files/baviganegagutepe.pdfIn PDF document text
    • http://bvfclregistration.etenders.in/app/webroot/js/ckfinder/userfiles/files/zabolililabixajenenujija.pdfIn PDF document text
    • http://overcomeproblems.com/images/files/5657938868.pdfIn PDF document text
    • http://stellamaris.cz/userfiles/53612682259.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 extracted file (font_00_sfnt_off0000c30b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c30b.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c30b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC30B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000db1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB1D 17060 bytes
SHA-256: a9bbb5c5ee5ea68c9d972e4de459b5ff06baef6030347a0f32f8336a845ffc34
font_02_sfnt_off000107c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107C9 11208 bytes
SHA-256: 51a2f5d273eb68be52e81e70db6af21b10b41e3c91a659600a8ade6d888a9312