Malicious PDF — malware analysis report

Static analysis result for SHA-256 782235db554e1898…

MALICIOUS

PDF

171.1 KB Created: 2021-12-07 10:03:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 019f70ff21933cf6a02789fdd56ff6f2 SHA-1: 4748c793142886649de082601566c883ad4fe9ff SHA-256: 782235db554e189885f8c6fd5397e37e4c72268528e43a2e2f42ff68db871a83
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9639

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://pixomot.ru/uplcv?utm_term=formato+de+certificado+medico+imss+pdf PDF link annotation
    • http://93564497.com/userfiles/22130899096.pdfIn PDF document text
    • https://stka.gr/ckfinder/userfiles/files/dusunod.pdfIn PDF document text
    • http://aviapartner.biz/js/ckfinder/userfiles/files/nukalatofor.pdfIn PDF document text
    • https://baoyi-chuck.com/ckfinder/userfiles/files/5802739800.pdfIn PDF document text
    • http://coral-travel66.ru/admin/ckfinder/userfiles/files/96452787565.pdfIn PDF document text
    • https://dukumanis.com/contents/files/salejomuzo.pdfIn PDF document text
    • http://hifitness.hu/userfiles/file/fusoxudebezes.pdfIn PDF document text
    • http://siamsankyo.com/Uploads/file/26134553650.pdfIn PDF document text
    • https://vanphongphampmc.com/upload/files/wowuxunajuzufimok.pdfIn PDF document text
    • http://akafgdsgreawy.pretty-match.com/upload/files/vorimupos.pdfIn PDF document text
    • http://euredit-editions.com/userfiles/file/10389221776.pdfIn PDF document text
    • https://rtvpuls.com/ckfinder/userfiles/files/97881780699.pdfIn PDF document text
    • http://generaltubi.com/container/ckfiles/files/raxumerabu.pdfIn PDF document text
    • http://remont-m.com/userfiles/file/73614597587.pdfIn PDF document text
    • http://tarnava.eu/user_images/file/zipanowoxidenij.pdfIn PDF document text
    • http://www.asap-recruitment.net/upload/file/30792392210.pdfIn PDF document text
    • https://www.theoakshealthcare.com/my_content/js/ckfinder/userfiles/files/17328994744.pdfIn PDF document text
    • http://tongrentangthai.com/UserFiles/file/4637479545.pdfIn PDF document text
    • http://sun-dr.com/uploads/files/202110140109325964.pdfIn PDF document text
    • http://systemsbiology.at/uploads/assets/file/wefadozuvoti.pdfIn PDF document text
    • http://neodermclinic.com/file_media/file_image/file/jexosolanejivutalaxiwa.pdfIn PDF document text
    • http://hzxgdz.com/images/upload/File/fumamu.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_off00023f32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23F32 19128 bytes
SHA-256: f12e4d22327f50aaf39849a7f6c920bb6e9e23cca11c32e2c0398029f60a8009
font_01_sfnt_off00026eaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26EAF 10608 bytes
SHA-256: 9ebacea066cba623fa1580e04db5b325ec20576cfd24c8566bee6c1443a746ca
font_02_sfnt_off000286f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x286F1 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336

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