Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f63e51a68569a68…

MALICIOUS

PDF

431.7 KB Created: 2022-03-20 16:20:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: aa8d13e7a1cdbe8acc7b9f8b21ed32fd SHA-1: 800665c860163b7d7d95f736886a2972a57308d7 SHA-256: 8f63e51a68569a6830ad6a7f84b04fe0436f371e18377b0a141a2e847fa8448b
129 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4712

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 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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://lazav.co.za/XSRYdR1H?utm_term=hotstar+app++for+android+phone PDF link annotation
    • https://transdeliveris.lt/userfiles/file/44804318661.pdfIn PDF document text
    • http://mrspk.com/ckfinder/userfiles/files/wodebikuviwusunuwaj.pdfIn PDF document text
    • http://ovartec.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620f67a2aed4e---luxad.pdfIn PDF document text
    • http://kurskodkb.ru/page_edit/_samples/userfiles/files/finejemapunikalitit.pdfIn PDF document text
    • http://www.anieliasfx.com/uploads/textareas/file/puzisogumon.pdfIn PDF document text
    • http://livermore.com/wysiwygfiles/file/40337924273.pdfIn PDF document text
    • http://soc-in.com/data/media/files/99045526716.pdfIn PDF document text
    • http://aotem.com/data/home/qxu1780220113/htdocs/uploadfile/files/zuxurisemofel.pdfIn PDF document text
    • https://avphunter.ro/ckfinder/userfiles/files/35733722759.pdfIn PDF document text
    • http://xn--80adpfaaeictf0c6c7i.xn--p1ai/public/file/56680463341.pdfIn PDF document text
    • http://jx4d.com/userfiles/file/jifutezozenawotumezopin.pdfIn PDF document text
    • http://gmixlocadora.com.br/admin/kcfinder/upload/files/66795561055.pdfIn PDF document text
    • http://gorre-paysage.fr/ckeditor/kcfinder/upload/files/51187820941.pdfIn PDF document text
    • http://baiduvpn.com/upload/files/wotafeworusigot.pdfIn PDF document text
    • http://tmservice.nl/bestanden/files/tukivitujanulatajokavixif.pdfIn PDF document text
    • http://ailin.kz/js/kcfinder/upload/files/25632914343.pdfIn PDF document text
    • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/16233f212c4115---mipoteb.pdfIn PDF document text
    • http://veoguidecostarica.com/ci/userfiles/files/55116848048.pdfIn PDF document text
    • http://bioengenharia.com.br/public/libs/kcfinder/upload/files/kizelatonediwar.pdfIn PDF document text
    • http://anke.de/data/anke.de/uploadfiles/file/tudotajudowula.pdfIn PDF document text
    • https://cuichi177.com/uploads/files/202202201150392144.pdfIn PDF document text
    • http://niezapominajkowo.eu/userfiles/file/45196190173.pdfIn PDF document text
    • http://rentappli.com/tinymce/jscripts/tiny_mce/plugins/phpimage/phpimage/upload/images/file/41400495935.pdfIn PDF document text
    • http://strahovka66.ru/userfiles/file/baxeted.pdfIn PDF document text
    • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/16220bbceaf299---somimot.pdfIn PDF document text
    • https://www.asoriofrio.org/ckfinder/userfiles/files/32263733482.pdfIn PDF document text
    • https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/814ev20vev03d4c2jjt03ee24vc87e2u/lokozamikemawakixos.pdfIn PDF document text
    • https://windfreeklima.com/upload/ckfinder/files/5638449598.pdfIn PDF document text
    • http://nyitotthaz.hu/userfiles/files/werodopifejoduwisadiw.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 extracted file (font_00_sfnt_off000650d5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000650d5.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000650d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x650D5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000667f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x667F0 18172 bytes
SHA-256: c17296cc155d5696e84b5b66527967f3e522896002b4000129433295f0768ee8
font_02_sfnt_off000697a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x697A4 10540 bytes
SHA-256: 45f3c542ebff75d91dca5e94e5bbb42ce9a1fd0f2bec5372edef3d8f3a8a86f6