Malicious PDF — malware analysis report

Static analysis result for SHA-256 425138e943d0e009…

MALICIOUS

PDF

69.9 KB Created: 2021-10-14 02:02:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 176ff920bc9d1f866755eae0251b159e SHA-1: 542cd11c202e4d1a9baa4e19d20c4ca62aed5b1c SHA-256: 425138e943d0e009a4340533838e3824b2c7dfeeb25a6e97a89962ec4225e309
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9893

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://christmaslandint.com/userfiles/80641992733.pdf In PDF document text
    • https://www.khaosanpools.org/ckfinder/userfiles/files/bebetaxamozonawe.pdfIn PDF document text
    • http://alles-vom-schreiner.de/userfiles/file/23646338288.pdfIn PDF document text
    • http://laboratoriologos.it/userfiles/files/banitavufegugikepot.pdfIn PDF document text
    • https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/8d01eddbadf0bc8ee211052769aff11f/tinozazisuwafatedenez.pdfIn PDF document text
    • https://ktmcollege.org/public_html/userfiles/file/rakalininasimobanig.pdfIn PDF document text
    • http://abwalabamaave.com/uploads/files/8759952313.pdfIn PDF document text
    • http://exosushi.com/uploads/files/pawubiraxuwufuximisidulid.pdfIn PDF document text
    • http://hkacca.com/userfiles/64191342140.pdfIn PDF document text
    • https://jajugroup.com/ckfinder/userfiles/files/votiziwuvejij.pdfIn PDF document text
    • http://e3edu.vn/public/ckfinder/core/connector/php/connector.phppublic/uploadsfiles/86468941728.pdfIn PDF document text
    • http://chornakorn-packing.com/ckfinder/userfiles/files/43499228643.pdfIn PDF document text
    • https://hoangphatdanang.xetnghiemadndanang.com/uploads/image/files/88132771651.pdfIn PDF document text
    • http://saigondome.com/uploads/userfiles/file/4828281827.pdfIn PDF document text
    • https://mimpi1pusat.com/contents/files/10428299441.pdfIn PDF document text
    • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614048559c8ec---97346365927.pdfIn PDF document text
    • http://saringkarnwood.com/UserFiles/file/91098985046.pdfIn PDF document text
    • http://multi-accueil.fr/ressource/site-image/files/tovajowurivexerud.pdfIn PDF document text
    • http://vikingpaint.com/user_file/file/lizogogifegasevinigine.pdfIn PDF document text
    • http://tdbm.vn/upload/files/jivujizulularejo.pdfIn PDF document text
    • https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/0134c820b753aa02e03e621b6abfc259/zukafumapofokire.pdfIn PDF document text
    • http://sportsclinicwest.ie/media/contents/file/janivikizusujona.pdfIn PDF document text
    • http://keyflounge.nl/userfiles/file/71837559556.pdfIn PDF document text
    • https://korzo-galeria.hu/files/file/60692888777.pdfIn PDF document text
    • http://ffarchitettura.it/userfiles/files/kabupeta.pdfIn PDF document text
    • https://safe-international.com/userfiles/file/94810466108.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/oscUj7J0Gjw/uplcv?utm_term=simplify+numerical+expressions+with+exponentsPDF 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_off0000b3b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3B4 11220 bytes
SHA-256: 8d548cbbddf3df2689018790c69957190a1b2bdf92b2169cb14e5583dbadcb69
font_01_sfnt_off0000cdde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDDE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000e5f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5F0 14264 bytes
SHA-256: a3b4c530137d453cbdfc5a595d5e3c522f0a3fb08c52f36d7cb49cd80ea8f814