Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd21dfaf8354907…

MALICIOUS

PDF

253.0 KB Created: 2022-02-10 08:16:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: 33ad20c7690f12aadf76e43c45d3367d SHA-1: 6e1fee6b66a1e7e9dc1fc1b6d42d2caf1d75ecaf SHA-256: 3dd21dfaf835490705460c99df64a65a1cb926940d6bf772c79ee89716fcc210
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8062

Heuristics 5

  • 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.
  • 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://ragaz.co.za/XSRYdR1H?utm_term=carbohydrate+hemiacetal+formation PDF link annotation
    • http://www.cda.org.hk/ckfinder/userfiles/files/baguvexujobukikagijoj.pdfIn PDF document text
    • http://personal.sut.ac.th/chantira/port/ckfinder/userfiles//files/60904921738.pdfIn PDF document text
    • http://csim.jp/ckeditor/uploads/files/raxoxigakuzokifagekoseli.pdfIn PDF document text
    • http://arebiatours.com/uploads/files/fugeduguvujopajoneje.pdfIn PDF document text
    • http://xn--b1agjlwjc3g.xn--p1ai/ckfinder/userfiles/files/50985272395.pdfIn PDF document text
    • https://www.danielbarboza.com.br/v2/meuAdmin/inclusos/plugins/ckeditor/plugins/kcfinder/upload/files/38544610731.pdfIn PDF document text
    • https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/76586dd844383b5bed2c90d6a4f7322d/dunebofadoridekuv.pdfIn PDF document text
    • http://samtle.net/ckupload/files/wejiwazogirinaxixuderi.pdfIn PDF document text
    • http://www.insight-assessment.com/ckfinder/userfiles/files/52264072347.pdfIn PDF document text
    • http://goozzl.com/userfiles/files/juvasuluditegokibajedekib.pdfIn PDF document text
    • https://stiglic.sk/userfiles/file/waxusunatezova.pdfIn PDF document text
    • https://baglab.pl/galeria/file/fuzarejikilawobiwamibut.pdfIn PDF document text
    • https://pindimana.in/uploads/file/70314729562.pdfIn PDF document text
    • https://thietbiotoviet.com/Images_upload/files/repulas.pdfIn PDF document text
    • http://jimsclub.net/new/board/img_tinfo/file/20220118220324.pdfIn PDF document text
    • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161236992299bf---kifeton.pdfIn PDF document text
    • https://10playsolutions.com/clients/softklk/documents/_articles_/file/67773902212.pdfIn PDF document text
    • http://www.sushmitamukherjee.com/fckimages/file/dujaxugizepibudikemuma.pdfIn PDF document text
    • http://erex.hu/upload/file/94299735709.pdfIn PDF document text
    • http://excitechem.com/userfiles/file/vufevalu.pdfIn PDF document text
    • http://ocean-ex.com/images/blog/file/waporenafuke.pdfIn PDF document text
    • https://marlin-shop.ru/ckfinder/userfiles/files/83145996567.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_off000384d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x384D6 10860 bytes
SHA-256: c7dbfbeb877c4643d7a76dc884644522c701262046f40be3ea67ee9e7c8e7d6e
font_01_sfnt_off00039dc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39DC1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0003b4dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B4DC 18332 bytes
SHA-256: f9071438c2e21274f3d282382e787ac08bc1b34a95d19e480f29a23ef10be2cb

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