Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd1228051fe3876…

MALICIOUS

PDF

218.5 KB Created: 2021-12-27 01:21:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: e5980e9f35b32a581bf85bb6f029f914 SHA-1: abaaa49957ecb4a0ba8d8915eee23862bf791382 SHA-256: 3dd1228051fe3876cea212fbc93573cbabf72e0f9a1d6206f7eef7bbac31d87c
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9671

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://www.clinicaepilepsia.cl/ckfinder/userfiles/files/fejexevapoz.pdf In PDF document text
    • http://di-tech.kr/fckeditor/userfiles/file/60882750582.pdfIn PDF document text
    • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/a7ac41096c75fe971f87b77e0b5e19a9/woxefevumezufuw.pdfIn PDF document text
    • http://nomorecpapmachine.com/userfiles/files/52137242517.pdfIn PDF document text
    • http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613f702a6f376---13623433096.pdfIn PDF document text
    • http://opuspointpartners.com/ckfinder/userfiles/files/58714691291.pdfIn PDF document text
    • http://www.hausman.eu/images/wyswig_images/file/madaka.pdfIn PDF document text
    • http://tksvolga.ru/userfiles/file/suvoropesunuzimixinofos.pdfIn PDF document text
    • http://cn-junsheng.com/upload/file///2021101320257343.pdfIn PDF document text
    • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615eaf9758197---renavi.pdfIn PDF document text
    • http://dulwichtaxi.com/survey/userfiles/files/lamir.pdfIn PDF document text
    • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16170f0fa0085c---novatuganuberi.pdfIn PDF document text
    • https://fleuriste79.fr/ckfinder/userfiles/files/52151934423.pdfIn PDF document text
    • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bd56c368f8---72256448175.pdfIn PDF document text
    • https://newtop-eg.com/userfiles/file/35819721240.pdfIn PDF document text
    • http://banquat.com/userfiles/files/roforedara.pdfIn PDF document text
    • https://metrosecuritynepal.com/assets/userfiles/files/nakolufe.pdfIn PDF document text
    • http://amblesidewindermere.ca/fckuploads/images/file/nanunovekam.pdfIn PDF document text
    • http://unsersohn.com/images/file/zonuwadobimu.pdfIn PDF document text
    • http://kamerton.nl/clientfiles/525246934.pdfIn PDF document text
    • http://hotelniagararimini.eu/userfiles/files/97225809600.pdfIn PDF document text
    • https://istanajp.net/contents/files/62727967004.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/TSvcnjQ06Jg/uplcv?utm_term=yentavadu+gaani+full+moviePDF 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_off0002fb81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FB81 19260 bytes
SHA-256: 146d5faa4992204fc7c46bed8fcbf285f3fa6bc98fcc92e8dddd33ea7ccfdc8f
font_01_sfnt_off00032d48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32D48 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off000343ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x343EC 10580 bytes
SHA-256: c0c7f63b66e9c3f694cf185a7ea7f654f58d2b3ebc387cc957c187619ea9e612