Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5de3bdac8242235…

MALICIOUS

PDF

82.2 KB Created: 2021-10-25 14:53:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 6aea0b19f387d1791847c6322092dc6a SHA-1: db3aa7557f83447e0554a9e56a1c71c7fe2c18b6 SHA-256: c5de3bdac8242235fb92884dc7000e5f595eeb370e5ade2b05f755cdf55310bc
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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://oniceh.ru/uplcv?utm_term=swear+to+tell+the+truth PDF link annotation
    • http://davidhammerstein.org/userfiles/file/99680013885.pdfIn PDF document text
    • http://dostavka.markasib.ru/ckfinder/userfiles/files/kuwawanubujux.pdfIn PDF document text
    • http://worshipedia.mobi/sites/default/files/file/76930736930.pdfIn PDF document text
    • http://www.flamanville-76.fr/upload/file/seluvekimiwepubuzulo.pdfIn PDF document text
    • http://vkts.se/userfiles/file/taliwaxavuzozodus.pdfIn PDF document text
    • https://bednidhitraders.com/userfiles/file/lunofusonusenuxo.pdfIn PDF document text
    • https://accesoriosalmayor.com/images/userfiles/file/rakavaxaguzufisora.pdfIn PDF document text
    • https://resortweeks.pro/userfiles/file/texerifudiwaxuxo.pdfIn PDF document text
    • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/d7cd1871f0996bf525d10e569aad6123/28980376447.pdfIn PDF document text
    • http://jindi2010.com/uploadfile/files/72197292549.pdfIn PDF document text
    • http://studioingegneramato.com/userfiles/files/10494786153.pdfIn PDF document text
    • https://www.vek-bg.com/app/templates/js/ckfinder/userfiles/files/17249873583.pdfIn PDF document text
    • https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/8pk4m5pj0cr7b5fpc489ij501c/faxatiso.pdfIn PDF document text
    • http://jagodkaprzedszkole.pl/userfiles/file/39660324593.pdfIn PDF document text
    • https://pabxlg.com/userfiles/file/79249343398.pdfIn PDF document text
    • https://tsafar.ir/basefile/tsafarir/files/ganorijabuk.pdfIn PDF document text
    • http://netichikawaya.com/userfiles/file/futevakelunesi.pdfIn PDF document text
    • http://gibisch.org/files/files/bofef.pdfIn PDF document text
    • https://cincia.ro/ckfinder/userfiles/files/jesuworuvomasuwebunesodu.pdfIn PDF document text
    • http://www.arborvitae.cz/ckfinder/userfiles/files/75297348590.pdfIn PDF document text
    • http://chpcentre.com/files/file/ribimibesepajamijimunudu.pdfIn PDF document text
    • https://scmsgroup.org/ckfinder/userfiles/files/guzibevefize.pdfIn PDF document text
    • https://ostrichpharmaceuticals.com/userfiles/file/7410843992.pdfIn PDF document text
    • http://moneymaker-gold.de/files/xapunir.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_off0000de6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE6F 10104 bytes
SHA-256: 9e91698f967569c4b29c6732c238e3226a7cf24e1f642878a2276747132d59bc
font_01_sfnt_off0000f53a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF53A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010d4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D4C 17604 bytes
SHA-256: 2371bb69e52ea367712deb224a40f2f9614f10655bfe5e7108dab9597cf38c9d

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