Malicious PDF — malware analysis report

Static analysis result for SHA-256 624719f458bbd992…

MALICIOUS

PDF

68.5 KB Created: 2021-09-30 23:13:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-28
MD5: b8c731fc32810e26b945cdffebd3fa7e SHA-1: eff83e1534e56c024aa3890cd2f03175dbd2081a SHA-256: 624719f458bbd9923ad130376f2c707a5ce28dd505a30e39a1ff1ca6cea72ce7
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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 http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/161538ec712443---68813121674.pdf In PDF document text
    • https://cakkue.com/contents/files/jakaragimuvexatoluxe.pdfIn PDF document text
    • http://96rangjai.com/userfiles/file/50165664068.pdfIn PDF document text
    • http://canadapremiumlubes.com/survey/userfiles/files/lemuxupoweduzubotopotu.pdfIn PDF document text
    • https://langumeistras.lt/i/File/jagaginit.pdfIn PDF document text
    • http://www.integra-cr.cz/administrace/ckfinder/userfiles/files/1476538183.pdfIn PDF document text
    • https://flims.atelierleuthold.ch/userfiles/files/71479670423.pdfIn PDF document text
    • https://cecprint.com/images/file/17217545968.pdfIn PDF document text
    • http://starma.pl/files/file/nagigafinup.pdfIn PDF document text
    • https://noithathoaphat11.com/upload/files/gibamonoj.pdfIn PDF document text
    • http://dyneco.kr/userData/board/file/72956042824.pdfIn PDF document text
    • https://vinocastillo.hu/editor_up/rovegopes.pdfIn PDF document text
    • http://piazzademarini3ge.com/userfiles/files/28004379331.pdfIn PDF document text
    • http://aumnat2car.com/ckfinder/core/connector/php/upload/files/birobuzitewelubokodopuj.pdfIn PDF document text
    • https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/tfo741f53kd8qecsmj5h287k43/madimuj.pdfIn PDF document text
    • http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614659d161485---xijajadufi.pdfIn PDF document text
    • http://savaksangida.com/resimler/files/xovires.pdfIn PDF document text
    • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614fac90a9761---bagesavozugusenageg.pdfIn PDF document text
    • http://swaving-stalinrichting.nl/ckfinder/userfiles/files/xegomevejofe.pdfIn PDF document text
    • https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/08010d9ca802b2fa442d299d01c2903e/56047238679.pdfIn PDF document text
    • http://kcntanduc.vn/img_duhoc/files/novoxerurojenefovirufi.pdfIn PDF document text
    • https://careerroots.net/ckfinder/userfiles/files/zotetowexojulal.pdfIn PDF document text
    • https://sukienmiennam.com/userupload/files/rolefiveturu.pdfIn PDF document text
    • http://botosani.ro/img/uploads/file/weporuruvofarukaka.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=jugad+virtual+apkPDF 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_off0000b222.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b222.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b222.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB222 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ca34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA34 14200 bytes
SHA-256: a106f7a37c420854841d3e0808d2801eb9454eb756a3c5c0ec9f649cee78737a
font_02_sfnt_off0000ed9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED9D 10292 bytes
SHA-256: 924f4ad844066e1b5f6ae65c18d86c6d737521322b6ce8790067f53cfd0a5101