Malicious PDF — malware analysis report

Static analysis result for SHA-256 44585313e9f73847…

MALICIOUS

PDF

68.8 KB Created: 2021-09-26 14:02:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-07
MD5: 6f6d199a8d4e698d3913a88c104fcc92 SHA-1: 399db434d722c54bcbc55cd73c374a05a7e72b8f SHA-256: 44585313e9f73847ed8de9c89191bd1e85a604b9f1260e99a07127b4e0fd67de
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://infrive.ru/uplcv?utm_term=2048+cards+casual PDF link annotation
    • http://vipnovini.bg/root/f/uploads/files/60097413939.pdfIn PDF document text
    • http://mya1fc.com/files/ckuploads/files/83199554210.pdfIn PDF document text
    • http://sumosushingrill.com/uploads/files/jamoxipigijiter.pdfIn PDF document text
    • http://goldnumber.info/userfiles/file/92012253777.pdfIn PDF document text
    • https://sweetburden.com/upload/users/files/kapojam.pdfIn PDF document text
    • http://permanentnimakeup-brno.cz/userfiles/files/xulomukumatosebemewir.pdfIn PDF document text
    • https://www.shamshabaddiocese.org/files/js/ckfinder/userfiles/files/fajejuzigif.pdfIn PDF document text
    • http://piqiso.ru/userfiles/file/16339839562.pdfIn PDF document text
    • http://pantryscan.com/123cars/imagefck/file/jadozomitukotojikokexo.pdfIn PDF document text
    • http://falconltd.pl/cache/file/mejutedefivikakebevudub.pdfIn PDF document text
    • https://classoft.ro/userfiles/file/85204374823.pdfIn PDF document text
    • https://yenicekentkaplicasi.com/userfiles/file/95804486292.pdfIn PDF document text
    • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1614152afd81c8---zovetopamaxiladidu.pdfIn PDF document text
    • http://bmcnx.com/userfiles/file/nugipalurawamefina.pdfIn PDF document text
    • https://didaktika.drmix.cz/uploads/files/53360229597.pdfIn PDF document text
    • https://gionggiacam.gagiongvitgiong.com/ckfinder/userfiles/files/58761360032.pdfIn PDF document text
    • http://www.rsvpcatering-ar.com/files/imagesfile/82077568701.pdfIn PDF document text
    • http://ty-int.com/files/files/60721184121.pdfIn PDF document text
    • http://purepassion.pl/userfiles/file/22288570809.pdfIn PDF document text
    • https://jjpremiers.com/files/firitejivolu.pdfIn PDF document text
    • https://globalybm.com/ckfinder/userfiles/files/1631815869.pdfIn PDF document text
    • http://polesprogettazioni.com/userfiles/files/6691513274.pdfIn PDF document text
    • http://perfecturology.cafe24.com/upload/editor/imagefile/37391436228.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_off0000afb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFB6 15184 bytes
SHA-256: 2c906c0fc46e63abdb65b845979053c2c452364a4f74f37621c38d68fdd3a278
font_01_sfnt_off0000d5ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5FF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000ee16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE16 10348 bytes
SHA-256: 903efe5f4a156ad345985cf633eaae8d507c05f31341b0706436a87d2388c0ad