Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0cd942da2b159b0…

MALICIOUS

PDF

271.7 KB Created: 2022-03-10 20:55:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: b0d86c901e2e3d7df25ca17e4cb73ed0 SHA-1: fcd38914b47730643140a31400e17d16d4437874 SHA-256: c0cd942da2b159b0df431567d5075533de0babae94497880b8c15363fbc94bd1
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7309

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://citlak.de/admin/UserFiles/file/lumatexefuxet.pdf In PDF document text
    • http://goplayer.net/fil/ckFiles/files/levobevosa.pdfIn PDF document text
    • https://toolsatool.com/userfiles/files/22647391468.pdfIn PDF document text
    • https://travelshops.pl/userfiles/file/17853253810.pdfIn PDF document text
    • http://www.tractortools.cz/ckfinder/userfiles/files/96514468545.pdfIn PDF document text
    • http://longtra.vn/userfiles/file/maxezukefozusodomum.pdfIn PDF document text
    • https://unityofmyanmar.org/images/files/51955348389.pdfIn PDF document text
    • https://tainandentist.com/uploads/files/202202130209188375.pdfIn PDF document text
    • http://qkmedica.com/uploads/userfiles/file/vafibunomugafedowi.pdfIn PDF document text
    • http://xn--b1adadl3aoabascoo.xn--p1ai/upload/files/wixajawava.pdfIn PDF document text
    • http://overcomeproblems.com/images/files/buvuredojitiz.pdfIn PDF document text
    • http://svm.kalistecom.org/img/files/vosurilanivodik.pdfIn PDF document text
    • http://delta-serwis.pl/pliki/2114997882.pdfIn PDF document text
    • https://hung168.tw/UserFiles/files/juzek.pdfIn PDF document text
    • https://trvstore.com/userfiles/file/wufedewagigutug.pdfIn PDF document text
    • http://www.oftalmed.com.br/files/ckeditor_custom/kcfinder/upload/files/6415039195.pdfIn PDF document text
    • https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/161fd34c74d49d---49907446415.pdfIn PDF document text
    • http://peoplefineart.com/assets/202202/files/20220222181705607495.pdfIn PDF document text
    • http://yamada-kajuen.com/js/kcfinder/upload/files/38513209444.pdfIn PDF document text
    • http://kartonpier.com/admin/kcfinder/upload/files/30569643087.pdfIn PDF document text
    • http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/162289c1915a7c---kopijirurivagapiz.pdfIn PDF document text
    • https://tunapvietnam.thietbiotoviet.com/Images_upload/files/1317276197.pdfIn PDF document text
    • https://www.t-med.kz/app/webroot/js/kcfinder/upload/files/60768051784.pdfIn PDF document text
    • http://likebarcode.com/image/files/20220209_223310.pdfIn PDF document text
    • https://norin.co.za/XSRYdR1H?utm_term=bengali+video+songs++webmusic.+inPDF 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_off0003d008.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003d008.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003d008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D008 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003e723.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E723 18044 bytes
SHA-256: c237dabe5154ab772c5b272cef75087041acc335bf7ae941136490c92cfa2581
font_02_sfnt_off00041630.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41630 11024 bytes
SHA-256: 1e0670438aa9fcb4aa37ce2b7a61dd0ad9ba4f9d08f7423f354ecb8b4ac120a7