Malicious PDF — malware analysis report

Static analysis result for SHA-256 72be6485f4702e4b…

MALICIOUS

PDF

83.4 KB Created: 2021-10-07 05:25:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: df98f8642b07833142659a74cdad8481 SHA-1: ecee51f3ea5aa15917d086942dca4c5f92bc725e SHA-256: 72be6485f4702e4b728bc96b7b695021faec5b7c4cd7f96563bcd33fa1c71f38
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9911

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
  • 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://irlanc.ru/uplcv?utm_term=act+74f+answer+explanations PDF link annotation
    • http://ctyrkolky-gamax.cz/data/dokumenty/figanenuzugukemukumanoma.pdfIn PDF document text
    • http://aedjtjdshbf.pretty-match.com/upload/files/famimikubunifalagi.pdfIn PDF document text
    • https://olterus.net/contents/files/62021247062.pdfIn PDF document text
    • https://bimore.vn/webroot/img/files/safurazinuberofoxigebe.pdfIn PDF document text
    • https://kawanmto.com/contents/files/gesotejitigeguseta.pdfIn PDF document text
    • https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/i9k38c46m7brta340u3drljmp7/55072272906.pdfIn PDF document text
    • https://iwanbim.iwan.co/userfiles/files/66291540379.pdfIn PDF document text
    • https://tepihtrava.rs/files/67416970378.pdfIn PDF document text
    • http://easyreturn.store/userfiles/file/60214072655.pdfIn PDF document text
    • https://ntct.dz/ckfinder/userfiles/files/20441907096.pdfIn PDF document text
    • https://familienbilstrup.dk/ckfinder/userfiles/files/rotajafapisadewuriti.pdfIn PDF document text
    • http://usarsenal.it/userfiles/files/92137101857.pdfIn PDF document text
    • https://vientangluc.com/upload/files/kabawuwerilosanemuneboba.pdfIn PDF document text
    • http://oroblupiscine.it/userfiles/files/xeninu.pdfIn PDF document text
    • https://ddshower.com/ckfinder/userfiles/files/fufuligujo.pdfIn PDF document text
    • http://clinicaveterinariacene.com/userfiles/files/78232278740.pdfIn PDF document text
    • https://damsindia.org/admin/uploads/file/figelefusupa.pdfIn PDF document text
    • https://tuyendung.tlipgroup.com/upload/images/files/pujogevagadowefufed.pdfIn PDF document text
    • http://www.jysunshine-hotel.com/up_files/file/zigoregaxezufogokapune.pdfIn PDF document text
    • https://molecult.metallo-tests.ch/sites/web/upload/files/rosakodusijapidajaropur.pdfIn PDF document text
    • http://batterseataxi.com/survey/userfiles/files/39760002363.pdfIn PDF document text
    • http://stillincontact.com/images/mails/file/97073616447.pdfIn PDF document text
    • http://aiswaryamatrimonials.com/fck_uploads/file/kuzek.pdfIn PDF document text
    • http://yildizteknikelektrik.net/resimler/files/49233289787.pdfIn PDF document text
    • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/79c9159b74483acc7c383f6e3927158f/3759071315.pdfIn PDF document text
    • https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/f7f8fabaac39202400082d8e4948eb1e/81178934847.pdfIn PDF document text
    • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16152ce3385a34---92451526446.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_off0000dc81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC81 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f498.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF498 10768 bytes
SHA-256: 103215333b69b072623258fc139fd5068884045e2722adc7c04536a6a64e0ae0
font_02_sfnt_off00010db3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DB3 19364 bytes
SHA-256: f5756443e61482459bb37b4d2cc9676aa06d3175f9cabc79e77f723c55e83529