Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3df2746159d68f…

MALICIOUS

PDF

87.2 KB Created: 2021-08-10 07:09:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 0fa7f479a6cd1cfbc43b991878751b9c SHA-1: 8c62dd37d1ef6e94ff3204707f96b75a72a79cfe SHA-256: 4e3df2746159d68f771913930b0ceb2c4765695fafa2b2cee10635525ca72382
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 7

  • 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.
  • 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://pistant.ru/uplcv?utm_term=the+hobbit+2+full+movie+in+hindi+480p+download PDF link annotation
    • https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/1c0842b5ae6908eb8a5715d94081b3d2/dotivifa.pdfIn PDF document text
    • http://klefmarken.se/upload/file/51259893789.pdfIn PDF document text
    • https://mytalk7.com/_UploadFile/Images/file/3377759240.pdfIn PDF document text
    • http://mai-colle.jp/userfiles/file/45995591169.pdfIn PDF document text
    • http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/ddacfbf3933050e1f4e6c2e9487e67f8/18524858522.pdfIn PDF document text
    • http://sevinctekstil.com/resimler/files/nakojexe.pdfIn PDF document text
    • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbd3fd3116---6801887490.pdfIn PDF document text
    • http://gndpta.eu/news_objects/files/vokubovalutakegugu.pdfIn PDF document text
    • http://doanekeyes.com/userfiles/docs/majefulekenogafolo.pdfIn PDF document text
    • http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f16b60db2e---suribulumozuzuxubeborabud.pdfIn PDF document text
    • https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/d4472aa3f03e2476205ab10bd6afd888/27536556996.pdfIn PDF document text
    • http://ssaisarang.com/ckfinder/userfiles/files/dozanizogisijupagoga.pdfIn PDF document text
    • https://doosradashak.in/ci/userfiles/files/nusipemafadat.pdfIn PDF document text
    • https://ises.ca/phpsites/vertical_living/uploads/file/99125813330.pdfIn PDF document text
    • https://foundryindia.org/userfiles/file/5956078808.pdfIn PDF document text
    • http://applexin.com/ttpsea/files/file/jizexusuxiteri.pdfIn PDF document text
    • https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ec563421a1---vagedi.pdfIn PDF document text
    • http://gulfcoolcontracting.com/uploads/userfiles/file/file/96940277918.pdfIn PDF document text
    • http://hangtatmj.com/userfiles/watuninerabexe.pdfIn PDF document text
    • https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/d59fb28424d132369c44ae1a0e5e270f/4009593717.pdfIn PDF document text
    • http://nawaress.com/webroot/js/ckfinder/userfiles/files/26778474307.pdfIn PDF document text
    • http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160b293090bd3a---86428161125.pdfIn PDF document text
    • http://matstravel.ru/userfiles/file/kegawonikijagubuv.pdfIn PDF document text
    • http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160c64abee622a---55753086059.pdfIn PDF document text
    • https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/5fe30313e14012e341c9f69c860238fe/67622937251.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.netReferenced by PDF JavaScript
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseReferenced by PDF JavaScript

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF9D 11376 bytes
SHA-256: 95d97d3be0060f17f90a7678b0731bf4bf3499807f11ecb843f670c87e48ffd2
font_01_sfnt_off00010a1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A1C 17124 bytes
SHA-256: dbc08ed635eef26d0f00aa1c7ee10bc891a61d2d4f9a510b09cff17349f165af
font_02_sfnt_off000136f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136F9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1