Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8725dc5f8a219ce…

MALICIOUS

PDF

309.4 KB Created: 2022-01-05 23:50:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 665d8af7de397ce4862dd16430258a43 SHA-1: e59ac9e4c4c91bde700e1611f6378a4091f6ecc2 SHA-256: f8725dc5f8a219ce706bfec1fe82e3ae87b1aca1d20019c64777c86a8a10bcee
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8005

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 https://wastran.ru/uplcv?utm_term=data+science+interview+questions+and+answers+pdf PDF link annotation
    • https://pindimana.in/uploads/file/fozumogipoliwu.pdfIn PDF document text
    • https://bookings.gulfstarsports.com/admin/kcfinder/upload/files/85598953101.pdfIn PDF document text
    • https://vienhung.com/webroot/img/files/15554092058.pdfIn PDF document text
    • https://www.caposalasicilia.com/admin/ckeditor/kcfinder/upload/files/kafunewupinesidazeseb.pdfIn PDF document text
    • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/16177d1efe5dd4---vomixirepevavalosupa.pdfIn PDF document text
    • https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/774c85bdab5fdc7afe4e15707515e802/38913946116.pdfIn PDF document text
    • https://affordans.com/ckfinder/userfiles/files/tipidelodajitiwuvo.pdfIn PDF document text
    • http://aimecostruzioni.it/userfiles/files/97753137257.pdfIn PDF document text
    • http://top1np.com/ckfinder/userfiles/files/bojefugetisamiruxesuziben.pdfIn PDF document text
    • http://mlight.cz/archiv/file/bizufapurejekas.pdfIn PDF document text
    • https://aarhuskortet.dk/images/file/49893962895.pdfIn PDF document text
    • http://sinners-party.de/media/file/60866873732.pdfIn PDF document text
    • http://spynet.gr/Administrator/uploads/userpics/OutPostImages/files/24958115022.pdfIn PDF document text
    • http://headrepublic.pl/images/files/365560788.pdfIn PDF document text
    • http://www.alm-machines.be/kcfinder/upload/files/47143069126.pdfIn PDF document text
    • http://www.ondebiz.com/userfiles/file/tesovi.pdfIn PDF document text
    • http://pasarantogel2.com/contents/files/rovikuwutopajopoj.pdfIn PDF document text
    • http://www.barbazan-debat.fr/ckfinder/userfiles/files/zuxodomosexelal.pdfIn PDF document text
    • http://edv-denk.com/userfiles/file/64148099266.pdfIn PDF document text
    • http://buafit.bg/Uploads/files/43590736512.pdfIn PDF document text
    • http://sobinco.cz/ckfinder/userfiles/files/sagujamepo.pdfIn PDF document text
    • https://ibshospitals.com/userfiles/file/92058997865.pdfIn PDF document text
    • http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b68a6994efb---tabebomaxorufiv.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_off00046c44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46C44 16492 bytes
SHA-256: 7e40f6e2a8174604942de4e20cabe9b7e673944a535064c0e7a89d8bf7cf02e9
font_01_sfnt_off000496c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x496C3 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0004ad67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AD67 10964 bytes
SHA-256: 3e6f0c8608c454e1affe42e1caf62b250bb9911fc89132fa9cc2c715d08a8578