Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d87e9523e27380c…

MALICIOUS

PDF

72.2 KB Created: 2021-09-27 23:18:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 509c2387c8c916cccd92e695fb36fa2f SHA-1: e3a356968ef148c1a3480bfc7af75068bdc04376 SHA-256: 5d87e9523e27380c0b03cacfe10358f59ce0021d9168fffff1b4146c2d0ab6c6
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9940

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://nomylo.ru/uplcv?utm_term=best+game+to+play+on+ios PDF link annotation
    • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1614caf253e7a6---torelimuxa.pdfIn PDF document text
    • http://dlzhrjd.com/images/uploadfile/files/90077348844.pdfIn PDF document text
    • https://krafteco.ru/uploads/files/xujakonitem.pdfIn PDF document text
    • http://chhattisgarhsanskritboard.in/sharpinstitute/images/files/lelezetimegexuka.pdfIn PDF document text
    • http://archifolder.com/userfiles/files/vuxugelevivuwaweruti.pdfIn PDF document text
    • https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/16147c28f7c991---5175637819.pdfIn PDF document text
    • http://tataservice.it/userfiles/file/2130539417.pdfIn PDF document text
    • http://csc025.com/userfiles/file/20210925080804_fyw2k9.pdfIn PDF document text
    • http://somersetcountybar.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xijonuwukegigavikixasa.pdfIn PDF document text
    • https://burlingame.com/wysiwygfiles/file/fikun.pdfIn PDF document text
    • https://abogadosaccidentealicante.centralcms.cloud/galeria/files/66440947175.pdfIn PDF document text
    • http://tianfonmm.com/d/files/kesuk.pdfIn PDF document text
    • http://simonide.org/userfiles/file/78672552833.pdfIn PDF document text
    • http://barahi.com/assets/userfiles/files/papemotiparimadudosesifa.pdfIn PDF document text
    • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/161330080b6f7f---pojebowovegerilepu.pdfIn PDF document text
    • http://pampa.be/uploads/userfiles/files/86256873739.pdfIn PDF document text
    • https://vsevolozhsk.mebel18.com/uploads/files/pupabidu.pdfIn PDF document text
    • https://mahanakhon.pacedev.com/ckupload/files/7016050833.pdfIn PDF document text
    • http://xn--66-6kc8bfmkmjd.xn--p1ai/admin/ckfinder/userfiles/files/22013882403.pdfIn PDF document text
    • http://aucoindeshalles.fr/menu/file/dinegukamovugebofejamive.pdfIn PDF document text
    • http://99hospitalitygroup.com/ckfinder/userfiles/files/lesasa.pdfIn PDF document text
    • http://reclameindex.nl/images/uploads/lititepufovozawozewofiji.pdfIn PDF document text
    • http://home-plast.ru/foto/files/42917185319.pdfIn PDF document text
    • http://citygclub.com/ckupload/files/13529242272.pdfIn PDF document text
    • http://lecostationery.com/files/file/lelixugedakuregupe.pdfIn PDF document text
    • http://raylutickenterprises.com/userfiles/files/vamixezepowudovogimufalox.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_off0000b607.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB607 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ce19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE19 17188 bytes
SHA-256: e19dbc7776fe047119c4889a1cbe8f887b70a1afdf07c5f872e288f1fa322df0
font_02_sfnt_off0000fa9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA9D 10660 bytes
SHA-256: c30c531555df669f91aefeea405093156ff59cae57123911e90deefc3fa11839