Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbec30f5b0de273d…

MALICIOUS

PDF

378.8 KB Created: 2022-03-03 08:51:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: 71444d8c1760b2c077d4eeb3126cb716 SHA-1: af4fba6dc9be48997fef75f8c8dd0cd2e282d631 SHA-256: cbec30f5b0de273d19bba64808bb0cd7e061ff305da5dcfd8681120811457e2e
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6197

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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 http://chandigarhdatarecovery.com/files/file/90235858608.pdf In PDF document text
    • http://specimport.by/files/files/84572672966.pdfIn PDF document text
    • http://pietroquatriniarchitetto.eu/userfiles/files/gemadokimowovu.pdfIn PDF document text
    • http://fkm-lux.by/var/upload/file/71786103011.pdfIn PDF document text
    • http://neoneophytou.com/ckfinder/userfiles/files/86464130516.pdfIn PDF document text
    • http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620964675c095---26275507002.pdfIn PDF document text
    • http://tao-ssct.org/data/upload/file/73995040591.pdfIn PDF document text
    • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1621c953d1c909---61536158649.pdfIn PDF document text
    • https://eklyps.net/images/file/mivov.pdfIn PDF document text
    • http://lulanjina.net/upload/files/xanivokab.pdfIn PDF document text
    • https://coffotea.com/uploads/files/202203020346501901.pdfIn PDF document text
    • http://cuatro-pr.org/sites/default/files/file/13980634044.pdfIn PDF document text
    • http://gtlitalia.com/userfiles/files/21720152394.pdfIn PDF document text
    • https://hse.tw/upload/file/powexezabivisosenan.pdfIn PDF document text
    • https://bkr.jetdesign.pl/files/files/61829914163.pdfIn PDF document text
    • http://isisorganizasyon.net/panel/kcfinder/upload/files/62567577822.pdfIn PDF document text
    • https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/kdc5t01tnjai109epul6ruvotd/18211351085.pdfIn PDF document text
    • http://alteredcompta.com/buddha/ckfinder/userfiles/files/nuzamewuduviwufoboferoda.pdfIn PDF document text
    • http://roberthalasz.eu/uploads/file/vupatalegapumosexexawodo.pdfIn PDF document text
    • http://holyfatwa.iq/admin/ckeditor/kcfinder/upload/files/43602653379.pdfIn PDF document text
    • http://boryspil.osp-ua.info/userfiles/file/bumuxobezutazefijad.pdfIn PDF document text
    • http://tse.net.in/assets/ckeditor/kcfinder/upload/files/36259512412.pdfIn PDF document text
    • http://tcpartners.vn/kcfinder/upload/files/35040527381.pdfIn PDF document text
    • https://doradca-bankowy.pl/files/files/jixupejagovepadifaxajorid.pdfIn PDF document text
    • http://sushrutproctology.org/ckfinder/userfiles/files/lekokukexowifizap.pdfIn PDF document text
    • https://maurinet.com/userfiles/file/tobikebeberijaniz.pdfIn PDF document text
    • http://ingpoggi.eu/userfiles/files/18239990366.pdfIn PDF document text
    • http://marktoby.com/akram/know_news/admin/userfiles/file/wenejojobimezeloloruwese.pdfIn PDF document text
    • http://tvojashkola.ru/img/upload/files/modikovurapinetupure.pdfIn PDF document text
    • http://www.petercar0937494634.com/upload/img/files/pikonorogafopafezir.pdfIn PDF document text
    • https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16216da7607946---kubepaxaxalivixu.pdfIn PDF document text
    • https://ragaz.co.za/XSRYdR1H?utm_term=chu+chu+tv+cartoon+video+freePDF link annotation
    • 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 extracted file (font_00_sfnt_off00058066.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00058066.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58066 17032 bytes
SHA-256: 830fc85d563182c8b9df8ab059e3a3b00a0b87e17dacd6402d5376c5c2bc808e
font_01_sfnt_off0005acb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ACB3 10556 bytes
SHA-256: 3fe3914d30b56a1703d1987f6f4e843f141f1deb338676d41b2abd7b8e253be3
font_02_sfnt_off0005c4c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C4C7 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9