Malicious PDF — malware analysis report

Static analysis result for SHA-256 4254f176e5a6bd2a…

MALICIOUS

PDF

181.7 KB Created: 2021-10-07 02:14:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 92e533eb899a9e328af4c2c72be0c553 SHA-1: 315b96d846f560ca87b343155c8df784f90d7bf4 SHA-256: 4254f176e5a6bd2a3eafd910a020b4f4dffafe23bacb488ddabcff50191bc805
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9962

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 http://studiopetrilli.it/userfiles/files/24767665326.pdf In PDF document text
    • http://epoch-making.jp/js/upload/files/93448761889.pdfIn PDF document text
    • https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/c91e0949b876e6643e4ecac0c0b99bfc/dugakelupidebubudapoke.pdfIn PDF document text
    • http://dienhoabacninh.vn/webroot/img/files/lojipilidupirigaw.pdfIn PDF document text
    • http://liqaa-lb.com/files/userfiles/files/gedipaxufivinonuzeladuli.pdfIn PDF document text
    • http://luxe-pools.fr/i/File/45638274062.pdfIn PDF document text
    • http://pierrevillers.fr/mairie_files/file/85459683860.pdfIn PDF document text
    • http://carnavaldemarbella.com/Senegal_5/Content/files/userfiles/file/tunurasateboporefo.pdfIn PDF document text
    • http://khyljg.com/uploadfiles/files/vemofogipot.pdfIn PDF document text
    • https://designmaster.in/scgtest/eec-new/codelibrary/ckeditor/ckfinder/userfiles/files/60400338954.pdfIn PDF document text
    • https://jlgardner.org/home/jlg/public_html/ckfinder/userfiles/files/90121074273.pdfIn PDF document text
    • http://saga.diamonds/uploads/ckfinder/files/wuwej.pdfIn PDF document text
    • http://www.kroonzuivel.nl/ckfinder/userfiles/files/23249520937.pdfIn PDF document text
    • https://drgcode.managenet.ro/images/file/najuxod.pdfIn PDF document text
    • https://banifatemehmashhad.ir/userfiles/file/59795250103.pdfIn PDF document text
    • http://ageofwonders.buka.ru/sadm_files/30564604905.pdfIn PDF document text
    • http://hyunshin.net/userfiles/file/nuravopokijexojokot.pdfIn PDF document text
    • https://ww150008.linebot.net/upfile/files/20210928194904.pdfIn PDF document text
    • http://feg.vn/uploads/files/negowivusozegak.pdfIn PDF document text
    • http://parkergeneralcontractors.net/userfiles/file/11678792165.pdfIn PDF document text
    • http://idroter.org/userfiles/files/fijanejajegipo.pdfIn PDF document text
    • https://www.lucaslobker.com/minor/ckfinder/userfiles/files/jajifilubol.pdfIn PDF document text
    • http://kramnyca.info/img/upload/editor/file/vewujakija.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=cary+grant+north+by+northwestPDF link annotation
    • 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_off00026030.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26030 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00027842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27842 21756 bytes
SHA-256: d0ac003682f4b452154e1eb7cfca0614bfa0033734073439080b3c4cf6c5b917
font_02_sfnt_off0002b098.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B098 10620 bytes
SHA-256: 7021456ef9de66ff28fb93d915338feb5cd91907c28585356cc644dc1e61fec4