Malicious PDF — malware analysis report

Static analysis result for SHA-256 487c4b2b442a69a0…

MALICIOUS

PDF

326.3 KB Created: 2022-03-10 03:59:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-21
MD5: ad83107e1e20c62e2dffc177b64ec9f2 SHA-1: fb884a26f61ee12e63c3bdd64cfc5a19f189bfb5 SHA-256: 487c4b2b442a69a0b69670f68fbbe1e5c7c4080b373f13c3fbc5b313885cdb8a
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8308

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
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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://kozelskadm.ru/files/uploads/files/6623326702.pdf In PDF document text
    • https://suthuytinh.com/app/webroot/uploads/files/podunemibemotedejegu.pdfIn PDF document text
    • http://2013.letnifestiwal.pl/ckfinder/userfiles/files/toxulefidewisefimezebezi.pdfIn PDF document text
    • https://pasifikendustriyel.com/userfiles/file/10572363474.pdfIn PDF document text
    • https://mvfht.ca/kcfinder/upload/files/xiratir.pdfIn PDF document text
    • https://topupdana.com/contents/files/25429475454.pdfIn PDF document text
    • http://3e3i.com/UserFiles/file///10940578375.pdfIn PDF document text
    • http://arieslog.com/assets/ckeditor/kcfinder/upload/files/tepawimagoxitifu.pdfIn PDF document text
    • http://dxqzx.com/ckfinder/userfiles/files/20220310_062233.pdfIn PDF document text
    • https://nguoixunghekiev.vn/userfiles/file/11668896997.pdfIn PDF document text
    • http://kpglearningbox.com/assets/kcfinder/upload/files/gafenapatizawonobelixovi.pdfIn PDF document text
    • http://www.ujepites.hu/userfiles/files/wazumegefimizepinelaxinu.pdfIn PDF document text
    • http://driver-jazda.pl/upload/file/nozetoxagumagolifi.pdfIn PDF document text
    • https://sunnybeachaeroclub.com/files/files/74557895928.pdfIn PDF document text
    • http://paulkainth.com/sites/all/sites/paulkainth.com/files/25085309024.pdfIn PDF document text
    • http://kiszelyugyvediiroda.hu/docs/file/52126370305.pdfIn PDF document text
    • http://sriagasthiyarastro.com/FCKeditor/userfiles/file/jifonalinolodima.pdfIn PDF document text
    • https://luxury77.com/kcfinder/upload/files/wimoxuxogawe.pdfIn PDF document text
    • https://produktybhp.pl/pliki_user/File/10577400682.pdfIn PDF document text
    • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/16206eafd94501---32374021671.pdfIn PDF document text
    • https://villagrancanaria.bookipro.com/js/libs/ckeditor/plugins/kcfinder/upload/files/kunagovep.pdfIn PDF document text
    • http://www.aceitunasdelguadalhorce.es/ckfinder/userfiles/files/43939349543.pdfIn PDF document text
    • https://cafij.co.za/XSRYdR1H?utm_term=excel+spreadsheet+pilot+logbookPDF 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 extracted file (font_00_sfnt_off0004a9ef.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004a9ef.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004a9ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A9EF 17756 bytes
SHA-256: 8b30f0f053fd2e81445e216daf93d213928822b7ef11639a6aa00b7574d8956c
font_01_sfnt_off0004d8bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D8BF 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004efdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EFDF 11004 bytes
SHA-256: eb5e587ff146a9d8e641978750ce05a18b13c29e3c7b93eec3b03fb9ba4bfd17