Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3d942ef66be834…

MALICIOUS

PDF

81.4 KB Created: 2021-09-06 03:37:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 59b64a8c116e3185e739c69742a8d371 SHA-1: 5d5a696bdd2c50aea3db1ea56e9a908a8057849a SHA-256: 4e3d942ef66be8344d7733639a7f78a7f5c7033971c3f5dab4cb7e2996cc2532
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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 https://archism.ru/uplcv?utm_term=firman+5700+generator+manual PDF link annotation
    • https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/59nkpq0jc6aacq9ao7hm7m0507/geponebikaguli.pdfIn PDF document text
    • http://hytechplus.com/userfiles/file/selago.pdfIn PDF document text
    • https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/eb3826962f16803aa66c509f3be3ec0f/lixolej.pdfIn PDF document text
    • https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/pawetumularuwogupet.pdfIn PDF document text
    • http://afghansolar.com/userfiles/file/60619073273.pdfIn PDF document text
    • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/16087197a5c40e---68029301069.pdfIn PDF document text
    • https://efsanepin.com/calisma2/files/uploads/kojowunuwitej.pdfIn PDF document text
    • http://grandchainfamilyfoundation.org/clients/85333/File/tovobulukibi.pdfIn PDF document text
    • http://upoart.com/ckfinder/userfiles/files/xametogazunorar.pdfIn PDF document text
    • http://niezapominajkowo.eu/userfiles/file/munuporiwefuxoz.pdfIn PDF document text
    • https://ngoctraithaibinhduong.com/uploads/news_file/ravipafidozota.pdfIn PDF document text
    • http://skikk.be/app/webroot/files/userfiles/files/16158524778.pdfIn PDF document text
    • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b296236c1fb---kujotepez.pdfIn PDF document text
    • http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7a8f2ecbf---lunivivudojadakudamos.pdfIn PDF document text
    • https://cr2tek.com/userfiles/Proj_Name//files/29069752042.pdfIn PDF document text
    • https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1610b15f119050---pumopakaw.pdfIn PDF document text
    • http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/76d179a1295d1a3788b586ed2982097f/83472675231.pdfIn PDF document text
    • http://kabaretyimpresariat.pl/Upload/file/32483342022.pdfIn PDF document text
    • http://nissanotogovap.com/uploads/images/files/mumidaravudajamubivet.pdfIn PDF document text
    • https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/63552a02aea583604f8772a8504bb0ad/rapilovilaxomani.pdfIn PDF document text
    • https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9cbac04b16---85169023751.pdfIn PDF document text
    • http://uptownchantilly.com/uploads/files/21118956321.pdfIn PDF document text
    • http://joewhitefamilysite.com/clients/59967/File/32313310556.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_off0000d8fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8FE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f115.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF115 10664 bytes
SHA-256: 50a51c8e04e68f00d237e936d7b2394c9db32766a938c2d07b6c49a269d758c7
font_02_sfnt_off0001098d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1098D 17976 bytes
SHA-256: c7831fdf31f7a838027d60aa0d61cca6849f247f50e92601691a001f04a534b4