Malicious PDF — malware analysis report

Static analysis result for SHA-256 258d2502ccc3f264…

MALICIOUS

PDF

320.9 KB Created: 2022-02-06 05:18:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-12
MD5: a893b0c4e42b1c2037c6ec66f0a96a38 SHA-1: d6f09a99c15bb3167829aaacb9f98c00419e33ca SHA-256: 258d2502ccc3f2648309bb2e4ac9736463da80993712facbc1781f5115046096
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6934

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://ankaratutuncu.com/panel/kcfinder/upload/files/goroxomume.pdf In PDF document text
    • http://www.bufolari.com/public/immagini/file/dubaxemugekobisimevafav.pdfIn PDF document text
    • http://hengelo.scholenkeuze.nl/UserFiles/files/talarolenuxul.pdfIn PDF document text
    • http://thecobbfr.com/clients/4/43/4363d5a08aa72aedcf7f7d4dd0675897/File/mofiza.pdfIn PDF document text
    • http://shreyaghoshal.com/konadnew/userfiles/file/98741818744.pdfIn PDF document text
    • http://sequoia59.com/clients/867919/File/rexukunogofetamotodog.pdfIn PDF document text
    • https://chilegastronomia.cl/uploads/userfiles/files/xazalibavotewiju.pdfIn PDF document text
    • https://zlatartopalovic.rs/files/xotekiwunuga.pdfIn PDF document text
    • https://floraplant.gr/FCKeditor/userimages/file/wezofekojefimaled.pdfIn PDF document text
    • http://hkbroadwin.com/userfiles/lumisazilibo.pdfIn PDF document text
    • http://romengo.com/ckfinder/userfiles/files/11961197027.pdfIn PDF document text
    • https://wic-net.com/userfiles/file/31171552810.pdfIn PDF document text
    • https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/da33l1e5jnbpjd2pgpdt4jnlq0/viredures.pdfIn PDF document text
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161f4a1d286444---33413205321.pdfIn PDF document text
    • https://investmentskillsgroup.com/images/userfiles/file/kibaselutejepufix.pdfIn PDF document text
    • http://fishngrill.iorderfoods.com/uploads/files/99375045207.pdfIn PDF document text
    • http://automsystem.com/UploadFile/file/20211011114820629.pdfIn PDF document text
    • http://haohanlegend.com/Uploadfiles/files/guvuwozavuroruxuweru.pdfIn PDF document text
    • http://pecsimutargygaleria.hu/files/file/97855702885.pdfIn PDF document text
    • https://www.mnogotrop.com/ckfinder/userfiles/files/wafananikiwiwo.pdfIn PDF document text
    • https://stalbeckers.nl/userfiles/image/file/51078252833.pdfIn PDF document text
    • http://ozanatalan.com/iboard/includes/userfiles/files/93214737989.pdfIn PDF document text
    • https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/24f8cbdde37e3ae5bf889ab5f1f3cfca/54256840844.pdfIn PDF document text
    • http://pincailight.com/zk/UploadFile/file/2021090704184173499.pdfIn PDF document text
    • https://www.fuji5526.jp/kcfinder/upload/files/94584260471.pdfIn PDF document text
    • https://alteanetworks.fr/img/file/palewoke.pdfIn PDF document text
    • http://entryexpress.online/chapter_images/files/25371474260.pdfIn PDF document text
    • https://interstudy.net/userfiles/file/rugonijutor.pdfIn PDF document text
    • https://yubit.co.za/XSRYdR1H?utm_term=becoming+superhuman+pdfPDF link annotation
    • http://masters.unige.ch/kcfinder/upload/files/kexilidovowip.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_off000494e1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000494e1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000494e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x494E1 11076 bytes
SHA-256: 2d9f777a37abed6c1fdc5af4d5461cfbc16cbf464e43d79c5f63d60526ece21e
font_01_sfnt_off0004ae41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AE41 17904 bytes
SHA-256: d06fcbf59b5253b77a627dc9ac50af23b7ced554c3057999caf669cc96e4c423
font_02_sfnt_off0004dd20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DD20 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9