Malicious PDF — malware analysis report

Static analysis result for SHA-256 1164d80948a51d00…

MALICIOUS

PDF

208.6 KB Created: 2021-12-18 18:56:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: bfa426e8750fba1b3055af6e7be24184 SHA-1: b01e0aee01f8e23a9c017178eb28422af586ce83 SHA-256: 1164d80948a51d00fb69698ed689332da48ac4a7b94b27dc8bd2622ead061292
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9657

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 http://fashioneducation.ru/userfiles/file/werokoro.pdf In PDF document text
    • http://macierz-grodziec.org/files/file/nitivobo.pdfIn PDF document text
    • http://bytip.net/filespath/files/20211017205213.pdfIn PDF document text
    • https://chulintemple.org/CKEdit/upload/files/24288301432.pdfIn PDF document text
    • https://suruburi.net/mm/file/88172606772.pdfIn PDF document text
    • http://hichipper.com/hichipper/uploadfile/file/2021091121152973499.pdfIn PDF document text
    • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b4ba3722d37---74537652365.pdfIn PDF document text
    • https://houstoncoinshow.org/FCKeditor/file/70969571744.pdfIn PDF document text
    • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16131b1ab0e70a---vodopudu.pdfIn PDF document text
    • https://angelsstaff.com/uploads/file/86451932143.pdfIn PDF document text
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/161763f0ba36d4---bawizido.pdfIn PDF document text
    • http://vakaruinzinerija.lt/userfiles/file/42660505384.pdfIn PDF document text
    • https://4of100churchstreet.com/assets/media/files/jemozadelabiv.pdfIn PDF document text
    • https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1615ba2eae6fdc---navafa.pdfIn PDF document text
    • https://www.bosingels.nl/ckfinder/userfiles/files/lunas.pdfIn PDF document text
    • https://nikken-engineer.jp/export/sd205/www/jp/r/e/gmoserver/8/6/sd0748886/nikken-engineer.jp/fckeditor/upload/file/voninifud.pdfIn PDF document text
    • http://businessdevelopmentcenter.pl/uploads/userfiles/files/1296162714.pdfIn PDF document text
    • https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/3q4b4o9t7o3q0fstn2vvtkgrglt6qngi/78630194808.pdfIn PDF document text
    • http://directopinion.biz/uploads/FCK_files/file/99929929218.pdfIn PDF document text
    • http://gesundezellen.de/neu/userfiles/file/54592698370.pdfIn PDF document text
    • http://cartonwrappingmachine.com/userfiles/file/suretuju.pdfIn PDF document text
    • http://shop-cartuning.com/userfiles/file/tomuwugajasuvut.pdfIn PDF document text
    • http://giteduguedesboires.fr/userfiles/file/pafixasufofobog.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/HKUGBsJGI0E/uplcv?utm_term=colegio+de+enfermeria+de+puerto+rico+educaciones+continuasPDF link annotation
    • 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_off0002d2e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2E8 11092 bytes
SHA-256: c5479492a925ba859804871416eb1d479efb17a82b8a298e6d33cd6a2518c64f
font_01_sfnt_off0002ec91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EC91 18436 bytes
SHA-256: 80546ad6da61c1ae22a15e3a86116c8a00963be75bb446030a89a63716762560
font_02_sfnt_off00031ba1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31BA1 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336