Malicious PDF — malware analysis report

Static analysis result for SHA-256 550b2e9e3aead354…

MALICIOUS

PDF

68.6 KB Created: 2021-09-25 23:22:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-04
MD5: ce48754ebe163941a924dd9be9996c3b SHA-1: 93a300312e9e6247845965f97244dc0ad345c80f SHA-256: 550b2e9e3aead354c6c1a987e60505338fa20a292e07fdfd10b13f0b7c67eae6
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://medvor.ru/uplcv?utm_term=how+to+access+android+phone+over+wifi PDF link annotation
    • http://s13cf5ef.alojamientovirtual.com/ropadefutbolbarata/userfiles/file/28574183321.pdfIn PDF document text
    • http://thaisomboonautopart.com/userfiles/files/35018728884.pdfIn PDF document text
    • http://ugyvednok.hu/userfiles/file/84144313527.pdfIn PDF document text
    • http://antonellascarpittadesigner.it/userfiles/files/16398292599.pdfIn PDF document text
    • https://namkhoasaigon.vn/web/images/files/kuvemubewusek.pdfIn PDF document text
    • http://realtor-madrid.com/uploades/fckeditorfile/26549735497.pdfIn PDF document text
    • https://www.lire-les-notes.com/ckfinder/userfiles/files/gegozamujerukugej.pdfIn PDF document text
    • http://s13cf5ef.alojamientovirtual.com/ropadefutbolbarata/userfiles/file/wosiwabesavisexenabud.pdfIn PDF document text
    • http://wolfpackbasketballacademy.com/content_docs/vagaxonelesakupiz.pdfIn PDF document text
    • http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16145010d03f65---63953551041.pdfIn PDF document text
    • https://europawindow.com/app/webroot/img/main_content/files/2962488018.pdfIn PDF document text
    • https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/39892553f4ce2422b05e1a947e4e6908/waxenu.pdfIn PDF document text
    • http://debrecen.varosom.hu/userfiles/files/44699759178.pdfIn PDF document text
    • https://nergizleryapi.com/image/files/9272280550.pdfIn PDF document text
    • https://exam10.menapoint.com/app/webroot/upload/files/sirepavad.pdfIn PDF document text
    • http://gardenofsound.com/userfiles/files/zelijip.pdfIn PDF document text
    • http://ahzycw.com/upload_fck/file/2021-9-6/20210906050642910985.pdfIn PDF document text
    • https://tiemhoahaibara.com/data/dulieu/files/navabofexujuzaj.pdfIn PDF document text
    • https://demideopool.ro/ckfinder/userfiles/files/lolexiraliludoz.pdfIn PDF document text
    • https://solucionaesp.com/ckfinder/userfiles/files/11177513116.pdfIn PDF document text
    • https://comptables-publics.fr/userfiles/file/tetugonavugenozolo.pdfIn PDF document text
    • https://papiratisk.cz/soubory/wawexudanugabetin.pdfIn PDF document text
    • http://h04ydivan.ru/userfiles/file/42214842484.pdfIn PDF document text
    • http://klawiatury-foliowe.pl/_data/file/9914405965.pdfIn PDF document text
    • https://northwestconvention.cz/data/files/20062705177.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_off0000afa7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000afa7.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000afa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFA7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000c7be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7BE 10816 bytes
SHA-256: c3da96149d26e34e62a5bac06198a9382d27280282317ec3f2f64e0d3b50dfe0
font_02_sfnt_off0000e0a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0A5 14356 bytes
SHA-256: b131acfad8ac7e853277784d08fccde128d6208f9db54d1e22282623244d20e8