Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dfc6b5474b71ec6…

MALICIOUS

PDF

229.0 KB Created: 2022-03-29 12:16:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-18
MD5: 10a9d4b6b3630c86d64c7bf0c2dcf82c SHA-1: 918ab6841fc708cdeedeb4fb5d8a203de7844d3c SHA-256: 6dfc6b5474b71ec65e5526a5069bf3a9d73c988ebba9255c52eb36d853d22057
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6012

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 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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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 http://pensjonatagat.pl/userfiles/file/35263695085.pdf In PDF document text
    • http://valburysekuritas.co.id/upload/files/bokolojifomumerijo.pdfIn PDF document text
    • https://weilmclainboiler.ca/fck_upload/file/dorowopodi.pdfIn PDF document text
    • https://konkrea.be/uploads/files/86492667101.pdfIn PDF document text
    • https://swiz.eu/files/editor/54890108657.pdfIn PDF document text
    • http://dui-antidote.net/images/userfiles/file/rigalipojid.pdfIn PDF document text
    • http://perles-del-beya.com/userfiles/file/keravarisuju.pdfIn PDF document text
    • https://homecareangels.ca/files/files/files/litofuwalejidigup.pdfIn PDF document text
    • https://btsis.com/upload/ckfinder/files/57596187883.pdfIn PDF document text
    • https://cartonwrappingmachine.com/userfiles/file/mesewawerofiwopek.pdfIn PDF document text
    • https://valubil.com/public/uploads/cms_file/cms_files/58750360826.pdfIn PDF document text
    • http://www.granito-terrazzo.be/ckeditor/kcfinder/upload/files/36370931251.pdfIn PDF document text
    • http://ridonhennet.eu/admin/kcfinder/upload/files/12322001694.pdfIn PDF document text
    • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/16211b923ca7b6---wimojekokori.pdfIn PDF document text
    • https://die-elke.de/cms/elke_page_files/file/22932523493.pdfIn PDF document text
    • https://oldgradeducation.com/ckfinder/userfiles/files/vilem.pdfIn PDF document text
    • http://rowadhr.com/app/webroot/upload/files/36156599377.pdfIn PDF document text
    • http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/16223a6ab519f9---26102268802.pdfIn PDF document text
    • https://xlpe.net/Images_upload/files/liwanizoleman.pdfIn PDF document text
    • https://kfmaccounting.com/webroot/img/content/files/94747781401.pdfIn PDF document text
    • http://easy-maker.biz/upload/files/52805262652.pdfIn PDF document text
    • http://shceping.com/upFile/photos/2022-2/file/novufaxu.pdfIn PDF document text
    • http://stavebniny-pyramida.cz/admin/upload/files/28909388627.pdfIn PDF document text
    • https://zivotzaokny.eu/res/file/6349975550.pdfIn PDF document text
    • http://studiopetrilli.it/userfiles/files/mazuvekojanowum.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16230c43693d4f---34520832259.pdfIn PDF document text
    • http://wellcomm.co.id/assets/kcfinder/upload/files/xewisalexo.pdfIn PDF document text
    • http://yas-center.ru/userfiles/file/satini.pdfIn PDF document text
    • https://delmadang.com/userfiles/file///benigujavebafarosuzenipu.pdfIn PDF document text
    • http://old.muzeum-ak.pl/newsysn/kcfinder/upload/files/15945656719.pdfIn PDF document text
    • http://shangyi-pump.com/uploads/file/181104084078.pdfIn PDF document text
    • https://www.trungtammaychieu.com/ad-min/js/libs/kcfinder/upload/files/migagafakozorijuxezi.pdfIn PDF document text
    • https://healthlantern.com/ckeditor/ckfinder/userfiles/files/18098323074.pdfIn PDF document text
    • http://diagnosticaedilizia.com/userfiles/files/65930621274.pdfIn PDF document text
    • http://fantalife.be/userfiles/file/13967516954.pdfIn PDF document text
    • http://alatasfilms.gr/ILC/img/file/40886154636.pdfIn PDF document text
    • https://svenjakretschmer.com/ckfinder/userfiles/files/pebisidi.pdfIn PDF document text
    • http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/161f9d6cb71e4f---38195431106.pdfIn PDF document text
    • http://rileyillustration.com/images/agency/files/sonofubopubofozetogozoj.pdfIn PDF document text
    • http://papianiarch.it/userfiles/files/zaseruxafavijibosalegaf.pdfIn PDF document text
    • http://podlahyadvere.sk/editor_uploads/system/files/fobope.pdfIn PDF document text
    • http://westernvintage.com/kcfinder/upload/files/25226546909.pdfIn PDF document text
    • http://lingeriedediva.com/UploadFile/file/2022021412231773499.pdfIn PDF document text
    • http://clearspace-design.com/CKEdit/upload/files/42129793292.pdfIn PDF document text
    • https://zahrek.com/userfiles/file/nuzalupafotig.pdfIn PDF document text
    • http://mashtalkandil.com/userfiles/file/vobutazotolugubodex.pdfIn PDF document text
    • http://sobinco.cz/ckfinder/userfiles/files/38210805057.pdfIn PDF document text
    • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/162422d9587e5a---70165548585.pdfIn PDF document text
    • https://aynispirit.nl/userfiles/file/bilubelulodotiwunal.pdfIn PDF document text
    • http://nowator-zpu.pl/userfiles/file/majoribotawajakesimume.pdfIn PDF document text
    +9 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003225d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3225D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003397f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3397F 11096 bytes
SHA-256: 85581c9ca92b0cce50598a1da829a3e6c19b8ca9b2e2acd992aa44d8968d3b0e
font_02_sfnt_off0003532c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3532C 18540 bytes
SHA-256: 077d0cb29973048c567c45fd440958a09fa3977aba72dd2df4337ee3439e21d9