Malicious PDF — malware analysis report

Static analysis result for SHA-256 2580ca60c53a83e3…

MALICIOUS

PDF

128.1 KB Created: 2021-12-02 22:06:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-12
MD5: 72bdf722065d3a392b204ec10fd7d97f SHA-1: 1d291c8db6f54eb883805afc611b38473d63ebf0 SHA-256: 2580ca60c53a83e37a5b821c6fe62681bb73ed825d846d786ac2a37cae8f5d80
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9834

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
  • Viral-video clickbait PDF links to suspicious host critical SE_VIRAL_VIDEO_CLICKBAIT_LINK
    Document uses viral/leaked-video lure text and links to a suspicious disposable-looking web host. This is a clickbait/traffic-scam carrier shape rather than a benign PDF link.
  • 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://cantinachitarra.it/userfiles/file/8274743465.pdf In PDF document text
    • https://architektor.ru/uploads/file/somowunifemizibuxusap.pdfIn PDF document text
    • https://ganport.pl/userfiles/file/59004750092.pdfIn PDF document text
    • http://lamay.de/userfiles/file/74026230762.pdfIn PDF document text
    • https://senfina.top/uploads/files/toxiwaneruvekikewufuku.pdfIn PDF document text
    • https://wcfkenzi.com/ckfinder/userfiles/files/56417865632.pdfIn PDF document text
    • https://abaray.foliopic.com/kalavabezogeti.pdfIn PDF document text
    • http://cuboni.com/uploadfile/hong202111280346434452.pdfIn PDF document text
    • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/161a33a9d8072e---86464220792.pdfIn PDF document text
    • http://kolarskiemp.sobotka.pl/userfiles/file/62214887854.pdfIn PDF document text
    • http://dongzzang.com/userfiles/file///33905041801.pdfIn PDF document text
    • http://hztjjsj.com/images/upload/File/80403244404.pdfIn PDF document text
    • http://kapalishakti.com/ckfinder/userfiles/files/28922634451.pdfIn PDF document text
    • https://bepxuyenviet.com/upload/files/sunurudajufev.pdfIn PDF document text
    • http://banglenhospital.com/UserFiles/File/xojonodij.pdfIn PDF document text
    • http://konakelektrik.com/userfiles/file/52851973551.pdfIn PDF document text
    • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/16175f6cc88f5e---rotijazulelazegizumumife.pdfIn PDF document text
    • http://farmaciafasolis.eu/userfiles/files/30792109524.pdfIn PDF document text
    • http://yournamebadges.com/withyourdog/cms_uploads/file/zojunokon.pdfIn PDF document text
    • http://qianxish.com/ckfind_image/files/keziruxaxana.pdfIn PDF document text
    • http://mtrendgroup.com/MTrendGroup/uploadfile/fck/file/46296428632.pdfIn PDF document text
    • http://alhouti.com/userfiles/file/82618142538.pdfIn PDF document text
    • http://saigonradio.com/userfiles/file/lomigoguvosinam.pdfIn PDF document text
    • https://bnbcostaverde.it/userfiles/file/jatedaludomarazasumo.pdfIn PDF document text
    • http://bndweb.nl/upload/files/suxaduwubobelafupomi.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/TxADE9PCSUw/uplcv?utm_term=%D0%B3%D0%B4%D0%B7+%D1%84%D1%96%D0%B7%D0%B8%D0%BA%D0%B0+10+%D0%BA%D0%BB%D0%B0%D1%81+%D0%B2+%D1%81%D0%B8%D1%80%D0%BE%D1%82%D1%8E%D0%BA+%D0%B2+%D0%B1%D0%B0%D1%88%D1%82%D0%BEPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/tiff/1.0/In PDF document text
    • http://ns.adobe.com/exif/1.0/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/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_off00018603.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00018603.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00018603.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18603 11272 bytes
SHA-256: bfec42b948257bb354a4f41f30cbead050625d8fdb64fae1fb9df2982ca48dd8
font_01_sfnt_off0001a04c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A04C 22076 bytes
SHA-256: a2e6389a94739f988b27a957399cd83d772aa049cf645f27a9c7a7f76c330d7b
font_02_sfnt_off0001d7ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D7AB 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336