Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8119e4f149773d…

MALICIOUS

PDF

81.6 KB Created: 2021-08-16 00:24:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 7ac2973dfb2fadf201a632dfc3426bf4 SHA-1: 184fa3c0ea268575c5ae53f0ba3ff1822ef0b0b5 SHA-256: 5d8119e4f149773d924fd87f6f6f49185cc43e0670f94fbffa9fd171e182842a
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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
  • 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://drafthe.ru/uplcv?utm_term=what+is+the+difference+between+marxism+and+maoism PDF link annotation
    • http://aj-logistics.com/stock/userfiles/file/zezoxe.pdfIn PDF document text
    • https://bursac.net/userfiles/file/rogesejasevupugalomedosi.pdfIn PDF document text
    • http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5de1e7b736---10134781335.pdfIn PDF document text
    • http://xn--80aaffebba2apgigwiiececnggk9e4k.xn--p1ai/pict/file/14535955853.pdfIn PDF document text
    • http://mirai-kankyo.com/userfiles/files/jubilanajemerewonidogusir.pdfIn PDF document text
    • https://leo-translate.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1608ae89a3298f---nexojimul.pdfIn PDF document text
    • https://vanphongphampmc.com/upload/files/zanaxekogegusanexusizo.pdfIn PDF document text
    • http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160c896bca1897---gokibadav.pdfIn PDF document text
    • http://linklandhotels.com/upfile/editor/files/niwufuj.pdfIn PDF document text
    • https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/04f5fc056df044395e85aff9694654aa/rodemunezanuro.pdfIn PDF document text
    • https://odontologosmalca.com/images/userfiles/file/29396089536.pdfIn PDF document text
    • http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/160a300c1136f9---zuzaludojudobosusefagix.pdfIn PDF document text
    • https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/2349d49924ced58319e999882907e981/43165161192.pdfIn PDF document text
    • https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/2f4000110becf23419de94cb0d8ff84a/zukumiko.pdfIn PDF document text
    • https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095e015a71d7---67791558184.pdfIn PDF document text
    • http://location-appartement-venise.com/italie_documents/files/71402183259.pdfIn PDF document text
    • https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/d222643c9db6257449a3623d5b9791ca/679001013.pdfIn PDF document text
    • https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cab07dc28f1---zovaguwenosuzudagib.pdfIn PDF document text
    • http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/6fkk5alige380mnmsqduic0df4/zunurope.pdfIn PDF document text
    • https://www.ijmsir.com/ckfinder/userfiles/files/wexutawajotateri.pdfIn PDF document text
    • http://lokalizacja-gps.pl/userfiles/file/juwumik.pdfIn PDF document text
    • https://karapinarinsaat.net/userfiles/upload/file/88476183958.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_off0000da75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA75 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f28c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF28C 11016 bytes
SHA-256: 6cb9e20475f2a3be69d549e82c85ff0790de75a4bad55bda48dc8709e236349b
font_02_sfnt_off00010c09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C09 17104 bytes
SHA-256: 578a29892f1fb5acba9321dc315b820a7a96e35ced6f29af10738883cf6e8e85