Malicious PDF — malware analysis report

Static analysis result for SHA-256 624af331da67cb46…

MALICIOUS

PDF

336.1 KB Created: 2022-02-03 05:30:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-29
MD5: 69b7775d16eedc2c3c80d5298b71c473 SHA-1: 6cad90dd8dabd6eac6f18e40ba972aaae8671fad SHA-256: 624af331da67cb46646a8415a3dd5d869cc5042efab27f751e54cd1464101122
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6391

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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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 https://lovig.co.za/XSRYdR1H?utm_term=mental+maths+worksheets+for+kindergarten PDF link annotation
    • http://badischer-kunstverein.de/ckfinder/userfiles/files/88308810702.pdfIn PDF document text
    • http://tatugigo.com/ckfinder/userfiles/files/pifomixibezotus.pdfIn PDF document text
    • https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/tnkb1r47ugqtae7akje14ddsp4/51279907788.pdfIn PDF document text
    • http://dkstores.gr/userfiles/file/jevulenusuzugoxud.pdfIn PDF document text
    • http://nbaindia.nic.in/includes/ckeditor/plugins/kcfinder/upload/files/gabidatepagikes.pdfIn PDF document text
    • http://gyn-ordi.at/myPix/file/50362522827.pdfIn PDF document text
    • http://alarcon-v.com/editor_upload_image/file/11077815356.pdfIn PDF document text
    • http://globalnetworks.de/www.galabau-poscher.de/main/preview/ckfinder/userfiles/files/51332603930.pdfIn PDF document text
    • https://twr1115.net/files/fckeditor/file/66459692194.pdfIn PDF document text
    • http://humansharehouse.com/userData/board/file/lomafapuva.pdfIn PDF document text
    • http://grafosaleservice.cz/images/fck_editor/file/59628142970.pdfIn PDF document text
    • https://paperland.bg/uploads/file/pofexugetutolemoxovutuj.pdfIn PDF document text
    • http://iseveranscopy.com/upload/editor/file/20380905595.pdfIn PDF document text
    • http://mstreatmentadvances.com/userfiles/files/99993815155.pdfIn PDF document text
    • https://dacinsara.ro/fckfiles/file/fakakofedutijoxuzisu.pdfIn PDF document text
    • http://hejia-ele.net/upload/zonotapovuginafisusik.pdfIn PDF document text
    • https://grupo-bahia-real-estate.com/ckfinder/userfiles/files/radapi.pdfIn PDF document text
    • http://hkacca.com/userfiles/19466661365.pdfIn PDF document text
    • http://clinicaveterinariacittadivignola.com/userfiles/files/11926134405.pdfIn PDF document text
    • http://project4power.pl/file_store/zebadonekimojujiwaxuf.pdfIn PDF document text
    • https://channeloflove.com/ckfinder/userfiles/files/lowokipokopid.pdfIn PDF document text
    • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/161790dac16ee7---86926191912.pdfIn PDF document text
    • https://cmsmda.neotebet.de/uploads/all/58026270854.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/f27675305a8fc14c77010fe732483329/52500608768.pdfIn PDF document text
    • http://arebiatours.com/uploads/files/jebiwunuxudaninefagaf.pdfIn PDF document text
    • http://grupposcorcia.it/userfiles/files/siwojifuzokikugulo.pdfIn PDF document text
    • http://intproplaw.com/admin/uploads/file/65467451862.pdfIn PDF document text
    • http://alda.pl/ckfinder/userfiles/files/81848965771.pdfIn PDF document text
    • http://trungtinjsc.vn/upload/FCK/file/19698320389.pdfIn PDF document text
    • http://m-s-g.ru/userfiles/files/jawigumexagodalapejudubod.pdfIn PDF document text
    • https://basundharamart.com/userfiles/file/pasuzenozotoxonixe.pdfIn PDF document text
    • https://www.kg-designlabs.com/kcfinder/upload/files/sofavaduwi.pdfIn PDF document text
    • http://www.badischer-kunstverein.de/ckfinder/userfiles/files/zekazazusexakuwadisovodu.pdfIn PDF document text
    • https://kaztelcom.kz/ckfinder/userfiles/files/34628941652.pdfIn PDF document text
    • http://abcs.umontreal.ca/upload/files/wevusopawuwari.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_off0004d64a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D64A 16292 bytes
SHA-256: 739baad334fb5216871f7fc5c4657ad5dd4c90605775e146b3e89845ddb0e812
font_01_sfnt_off0005007f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5007F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005179f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5179F 10972 bytes
SHA-256: e993d91bd85bd904010bdeda306ba22d058bfa8998e46ce78fc6c00ffc5ef394