Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9cf6b13204f7562…

MALICIOUS

PDF

544.5 KB Created: 2022-03-11 23:28:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: 33404b0a55233e2862b56b198b5a5963 SHA-1: 18ba7539b080d64d0d02c0b30c153d1da44091ac SHA-256: a9cf6b13204f7562a3358531734fc37d4577f5bb85633edd5a877d412c98cf7b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5031

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 http://quesnelfoundation.ca/userfiles/file/10332815006.pdf In PDF document text
    • https://coprose.com.mx/kcfinder/upload/files/48850561998.pdfIn PDF document text
    • http://www.artefuoricentro.it/js/lib/ckfinder/userfiles/files/vogedenamovosirumuzevi.pdfIn PDF document text
    • https://haltia.mx/sii/ckfinder/userfiles/files/12431579222.pdfIn PDF document text
    • https://12shio4.com/contents/files/xuxilejaxetot.pdfIn PDF document text
    • http://kibbkw.com/uploads/file/814117493.pdfIn PDF document text
    • http://dastone.ru/userfiles/file/maxoxowalefokokebejo.pdfIn PDF document text
    • http://aksaxena.com/bpms/includes/fckeditor_uploads/userfiles/file/69640531786.pdfIn PDF document text
    • https://funbugs.ie/files/file/36991557591.pdfIn PDF document text
    • http://telefoonindex.nl/images/uploads/9333544339.pdfIn PDF document text
    • https://hgd.hr/admin/kcfinder/upload/files/29634907354.pdfIn PDF document text
    • https://dev-intranet.publiticket.fr/intranet/upload_fckeditor/file/jokupafuworud.pdfIn PDF document text
    • http://adveotec.com/img/file/85301947028.pdfIn PDF document text
    • http://ctyrkolky-gamax.cz/data/dokumenty/xedofuxiniwudiwe.pdfIn PDF document text
    • http://techbico.vn/uploads/image/files/62334917603.pdfIn PDF document text
    • http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/162162398863f4---99240637110.pdfIn PDF document text
    • http://joyear.com/ckfinder/userfiles/files/11604432325.pdfIn PDF document text
    • http://www.oloron-ste-marie.fr/Oloron/kcfinder/upload/files/nomedisebuwatazosipiri.pdfIn PDF document text
    • http://eigo-manabo.com/app/webroot/js/kcfinder/upload/files/sinefuxajovaridetup.pdfIn PDF document text
    • https://fundacjacat.halpress.eu/userfiles/file/luwolo.pdfIn PDF document text
    • http://estetycznastomatologia.pl/file/files/46165733091.pdfIn PDF document text
    • http://toyosupport.ca/assets/kcfinder/upload/files/buwapogotuzelokikasax.pdfIn PDF document text
    • http://sherry-japan.com/uploads/files/51245896824.pdfIn PDF document text
    • http://xn--vb0b83rba554gca.kr/page_data/file/20220303211835.pdfIn PDF document text
    • http://majcentrum.pl/user_uploads/file/75173244536.pdfIn PDF document text
    • https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/d16c75db09bfd91132f19daf7494a565/momejowixojoxikabukewefe.pdfIn PDF document text
    • https://yubit.co.za/XSRYdR1H?utm_term=bargain+shoppers+guide+to+melbournePDF link annotation
    • http://pc580.cn/upload_fck/file/2022-2-25/20220225185139327219.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_off00080fda.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00080fda.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00080fda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80FDA 11132 bytes
SHA-256: 74e370ca1a728ca2857c86fab3f78016d4009530185345777e8f23e8721e463f
font_01_sfnt_off00082936.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82936 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00084051.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84051 19464 bytes
SHA-256: 7a130536ac3561066956350e18dcdd3f8d9bea5ab4cc96616dcc2f775b33b45e