Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b622259c5de12d5…

MALICIOUS

PDF

89.8 KB Created: 2021-09-20 10:05:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: c5725d0461e9a0c59066fd223dc1893f SHA-1: 61b83290c6cfccb8069548e23c4a0d3618911c7e SHA-256: 2b622259c5de12d5989b7750a06031581fde20ad9fb21b9f85c866e828da043b
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9905

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://nomylo.ru/uplcv?utm_term=nightfall+kotlc+read+online+free PDF link annotation
    • https://ezokniga.com/uploads/file/tibakenisemefijuwemag.pdfIn PDF document text
    • http://pixel-pro.ru/upload/file/sewebakozufuvazeke.pdfIn PDF document text
    • http://j-club.eu/userfiles/file/37490588814.pdfIn PDF document text
    • https://rmp-traueranzeigen.de/cms/files/xetafewodatefaxuliwanux.pdfIn PDF document text
    • http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/6c6191dea53503336aa23118ebe95695/99654506701.pdfIn PDF document text
    • http://autosvanbeek.nl/mindcms/js/ckf/userfiles/files/71392241330.pdfIn PDF document text
    • http://arndt-fahrschule.de/userfiles/file/mifoduzazogodinukagepu.pdfIn PDF document text
    • https://xn--80aaa1arbfjoe3bzh.xn--p1ai/data/files/jomulemabe.pdfIn PDF document text
    • https://vas-vill.hu/userfiles/file/34676844045.pdfIn PDF document text
    • http://litroshaber.net/resimler/files/guvaponojalutitis.pdfIn PDF document text
    • https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/fc888a93fdbf1a60972c132925be183b/13724367844.pdfIn PDF document text
    • http://e2ingenieros.com/ckfinder/userfiles/files/wometovemogi.pdfIn PDF document text
    • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/t3e7edqp6en94lqsa5f1apl284/lepexagoba.pdfIn PDF document text
    • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16133a57c6409c---taxefopotino.pdfIn PDF document text
    • https://adikkedua.com/contents/files/85084152489.pdfIn PDF document text
    • http://yilbasipromosyonu.com/userfiles/file/puxemok.pdfIn PDF document text
    • http://ahnil.com/userData/board/file/ranad.pdfIn PDF document text
    • https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/31fea45c317f9fad7f88bd560d49ff25/kuxemidefakiwifakekulus.pdfIn PDF document text
    • https://aarushimukhwas.idealviews.com/userfiles/files/segasanekizogatefuka.pdfIn PDF document text
    • https://letajicikoberce.cz/userfiles/file/bijitafedazo.pdfIn PDF document text
    • http://bangladeshceramicsociety.com/uploads/editor/files/dukeji.pdfIn PDF document text
    • https://mt-creativestudio.com/ckfinder/userfiles/files/60158833949.pdfIn PDF document text
    • http://ozdermusavirlik.net/userfiles/file/ruzavibopej.pdfIn PDF document text
    • http://nigerseedindia.com/uploads/kixevodifavukujuseg.pdfIn PDF document text
    • http://vietsinphar.com/uploads/files/72331989404.pdfIn PDF document text
    • http://tomaszfilipczak.pl/userfiles/file/21351075528.pdfIn PDF document text
    • http://karlsbach.de/userfiles/files/rafetojov.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_off0000f97f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF97F 10656 bytes
SHA-256: 09eba7949c99ad939257febf3e6d1757a8ee9f2346b16dc1182e490723efc2cf
font_01_sfnt_off0001119b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1119B 18320 bytes
SHA-256: 54aea3af8b463a44b04192cf6ef01198d4bbd66840e96457df31d63023f565a4
font_02_sfnt_off00014133.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14133 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1