Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f38593f9becc40d…

MALICIOUS

PDF

79.9 KB Created: 2021-11-04 00:32:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-03
MD5: 314a8578a11c3f97ad9bf4a62e0fafae SHA-1: 66832e2b4af925621d111cee1f2e830fdea18094 SHA-256: 5f38593f9becc40d151c4cc67fc22f88230379c45f684ad4a09798444f6f3638
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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://pleasanton.com/wysiwygfiles/file/gijitajiganodiki.pdf In PDF document text
    • https://sssmri.com/ckfinder/userfiles/files/52925664157.pdfIn PDF document text
    • https://marathonlaval.com/userfiles/files/pewazipegufojovoduxafe.pdfIn PDF document text
    • http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1616a46a8ce19e---24182334659.pdfIn PDF document text
    • https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/0ac0d91f6e35b26115addb861d6f80c8/94464496186.pdfIn PDF document text
    • https://twinslock.com/locktactyuma/userfiles/file/64578879119.pdfIn PDF document text
    • http://www.jacenter.org/js/ckfinder/userfiles/files/bawemesaranasegijutejuga.pdfIn PDF document text
    • http://pinzimoniofiumicino.eu/userfiles/files/babamavivebovub.pdfIn PDF document text
    • http://yidaig.com/uploadfile/file/20210920101135.pdfIn PDF document text
    • https://quimicasorocolor.com.ve/ckfinder/userfiles/files/sakavimujasavetete.pdfIn PDF document text
    • https://likeevent.it/writable/public/userfiles/file/5635246072.pdfIn PDF document text
    • http://gizmakina.com/depo/sayfaresim/file/99625060399.pdfIn PDF document text
    • http://telesson.net/_UploadFile/Images/file/zuvoga.pdfIn PDF document text
    • https://petrovsky14.ru/docs/files/wujevudozobevufini.pdfIn PDF document text
    • https://fa-vietnam.com/webroot/img/files/warufumupilazisekenewa.pdfIn PDF document text
    • https://tennis-samara.ru/img/file/wewexerefidirinomutufona.pdfIn PDF document text
    • https://willmarareachamber.com/ckfinder/userfiles/files/xexuzi.pdfIn PDF document text
    • http://jlsxjy.com/right/UploadFile/file///2021090314073873499.pdfIn PDF document text
    • https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/161763a6ebe32f---vawirup.pdfIn PDF document text
    • http://jonme.net/ckupload/files/sadedotuzu.pdfIn PDF document text
    • http://skiflogistics.ru/userfiles/file/tuzaribanizejowizo.pdfIn PDF document text
    • https://mountainbrookbuilders.com/home/mountain/public_html/ckfinder/userfiles/files/wovosabozizoseb.pdfIn PDF document text
    • https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/161311fdf5b5eb---57970106304.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/5bhJmFgkeCE/uplcv?utm_term=tight+upper+chest+musclesPDF 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_off0000d90a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d90a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d90a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD90A 10496 bytes
SHA-256: 44d6aefb9eaf804d04a61e49e5a6958671ab68cfd284ae9e16d274330cb4729e
font_01_sfnt_off0000f0ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0EF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010901.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10901 15876 bytes
SHA-256: 795479912a2c53fa22c02e14dfcf9862f0feb9defdb96bc0505e081f8941343f