Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5decff8bb8430c3…

MALICIOUS

PDF

293.8 KB Created: 2022-02-07 19:06:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 79a99bb55ed9ec0f3bc1464b66291087 SHA-1: 114faced1471bbc045b8fa4dda34200dd15f049c SHA-256: c5decff8bb8430c3803fbce236e087c0f4d674ce1e59a2e7109d53776767b60f
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7430

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://podar.co.za/XSRYdR1H?utm_term=blackbear+dead+to+me PDF link annotation
    • http://euromarkcreations.com/new/fck_img/file/bivalupagarepitebinakupem.pdfIn PDF document text
    • https://pkbae.rs/files/likifaxewategiselopog.pdfIn PDF document text
    • https://turismo-galicia.es/ckfinder/userfiles/files/12179139781.pdfIn PDF document text
    • http://chongros.com/userData/board/file/vomafaposefirirexavuz.pdfIn PDF document text
    • http://kiavysocina.cz/UserFiles/File/45437097470.pdfIn PDF document text
    • http://belovosushi.ru/files/dofesale.pdfIn PDF document text
    • http://lsneotek.com/ckupload/files/junulad.pdfIn PDF document text
    • https://efckrakow.pl/userfiles/file/vitutevemujurigijo.pdfIn PDF document text
    • http://fukushigetakahiro.jp/pic/files/76216467848.pdfIn PDF document text
    • http://dominopark.pl/public/upload/ckfinder/userfiles/files/kunisabasasurer.pdfIn PDF document text
    • http://thermcom.cz/userfiles/file/1428945044.pdfIn PDF document text
    • http://hanmih.com/userfiles/file/20210826143105.pdfIn PDF document text
    • https://kotypsy.pl/ckfinder/userfiles/files/bafinovomi.pdfIn PDF document text
    • http://jet-boilers.ru/kcfinder/upload/files/fesudopedasagivifi.pdfIn PDF document text
    • http://cachnhietwin.com/luutru/files/nemadufobuvuzirejunusuvam.pdfIn PDF document text
    • http://swotaweb.com/img/upload/file/26462946757.pdfIn PDF document text
    • http://tauben-buchmeier.de/kleinberliner-schuetzen/userfiles/files/63180656645.pdfIn PDF document text
    • http://szentimresiklos.hu/upload/file/wetanijodefas.pdfIn PDF document text
    • https://alshaabcoop.com/userfiles/file/21443426355.pdfIn PDF document text
    • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/161aff70fc7a1f---raditumarel.pdfIn PDF document text
    • http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16179b796218bf---91847350144.pdfIn PDF document text
    • http://www.sctiec.com/up_files/FCK/file/64840087646.pdfIn PDF document text
    • https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/0e1a422cfe4659b44125a76fe534b53c/gebofafidudowoluver.pdfIn PDF document text
    • http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/16197d675cca53---19060786800.pdfIn PDF document text
    • http://cyuanmei.com/userfiles/file/19134838518.pdfIn PDF document text
    • http://njxinbell.com/upload/files/pofuxodejanipadegolekew.pdfIn PDF document text
    • http://info56.ru/userfiles/file/lusakuv.pdfIn PDF document text
    • https://safrano.pl/userfiles/file/58860441667.pdfIn PDF document text
    • https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161510646d7386---79321839024.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_off00042b38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42B38 17464 bytes
SHA-256: 08e134506f876c3d9eb42d032bbfb330d5b3c413d2ddbb61d08e54f8ca0a651f
font_01_sfnt_off00045816.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45816 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00046f36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46F36 10452 bytes
SHA-256: 1b93834a5488962c25d25be4fa498097092a6d744feab0993eec199ad747c952