Malicious PDF — malware analysis report

Static analysis result for SHA-256 55011cdfd3501d90…

MALICIOUS

PDF

626.9 KB Created: 2022-03-25 01:51:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-04
MD5: 53fe0d34fe4d7bd3793297bd0c21a749 SHA-1: bc672281b778ac8b1b17e8a53bafe40b71e39b67 SHA-256: 55011cdfd3501d908c6d6db109f14defe9c612a0931a965639503896c9f23858
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2668

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://www.unecol.com/uploads/kcfinder/upload/files/69507597674.pdf In PDF document text
    • https://entabe.com/upload/20220319/files/73250611184.pdfIn PDF document text
    • http://3asoft.vn/img/files/33971369446.pdfIn PDF document text
    • https://sd.martabemitrasosial.com/editor/files/lojesa.pdfIn PDF document text
    • http://nairmobilya.com/userfiles/file/62242748676.pdfIn PDF document text
    • http://jlicentral.com/images/authors/file/mapogaxevokepemam.pdfIn PDF document text
    • https://xo-sound.ru/userfiles/file/19458069476.pdfIn PDF document text
    • http://turnkeyparts.com/site-uploads/85485259414.pdfIn PDF document text
    • http://lasantitosrestaurant.com/userfiles/file/3670257668.pdfIn PDF document text
    • https://vishalahospitality.com/ckfinder/userfiles/files/16309772861.pdfIn PDF document text
    • https://e-uchebnici.com/img/file/43550226062.pdfIn PDF document text
    • https://vespaclubcagliari.com/userfiles/file/wuvujuzobelugis.pdfIn PDF document text
    • https://samirkumarpaul.com/ckfinder/userfiles/files/lanukedidupitajalitotoji.pdfIn PDF document text
    • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/162153e8038434---venukixe.pdfIn PDF document text
    • http://355353.ru/userfiles/file/47228827902.pdfIn PDF document text
    • https://ratco-hardware.com/Ups/files/75519069367.pdfIn PDF document text
    • http://www.naturhalles.fr/fckeditor/userfiles/file/7562543787.pdfIn PDF document text
    • http://dui-antidote.com/images/userfiles/file/88336341473.pdfIn PDF document text
    • http://lehoangcctv.com/ckeditor/kcfinder/upload/files/punawabejun.pdfIn PDF document text
    • https://hygienika.sk/userfiles/file/53732900966.pdfIn PDF document text
    • http://www.awakohchang.com/image/upload/File/1276520147.pdfIn PDF document text
    • http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16238b77d41c0c---47698559837.pdfIn PDF document text
    • http://transbur.ru/admin/ckfinder/userfiles/files/53627091277.pdfIn PDF document text
    • http://csk-star.piweb.com/uploads/fck/file/logabusoxobulepopageba.pdfIn PDF document text
    • https://meritumptt.pl/dokumenty/file/dopojobo.pdfIn PDF document text
    • http://arndt-fahrschule.de/userfiles/file/42544256929.pdfIn PDF document text
    • http://healthmindsacademy.com/admin/ckeditor/kcfinder/upload/files/40330066991.pdfIn PDF document text
    • https://e-enggltd.com/upload/files/37432757692.pdfIn PDF document text
    • http://cuspsurgeons.com/userfiles/file/valomug.pdfIn PDF document text
    • http://anpamedical.com/kcfinder/upload/files/68006780802.pdfIn PDF document text
    • http://jagatjyotischool.org/jagatjyotischool/userfiles/file/87876819075.pdfIn PDF document text
    • http://www.politico.cnm.org.br/ckeditor_custom/kcfinder/upload/files/lodun.pdfIn PDF document text
    • https://www.uncme.org.br/Gerenciador/kcfinder/upload/files/marinujasakusili.pdfIn PDF document text
    • https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/fa40845df91d15e6c473ee31c40f6b1e/senolere.pdfIn PDF document text
    • http://imosa.asia/uploads/files/202202122049345620.pdfIn PDF document text
    • https://tckontrola.zagi.hr/files/webasivedibidakewufogod.pdfIn PDF document text
    • https://www.mountainhawktrek.com/assets/kcfinder/upload/files/segur.pdfIn PDF document text
    • http://novehorizonty.sk/userfiles/file/gezulevadiwotozotulopi.pdfIn PDF document text
    • https://cafij.co.za/XSRYdR1H?utm_term=cantos+catolicos+letras+para+imprimirPDF 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_off000957d9.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000957d9.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000957d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x957D9 20904 bytes
SHA-256: 9cbb268f221cc2628e738be084340980c70669354001b650b105df2e70709143
font_01_sfnt_off00098c30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98C30 10564 bytes
SHA-256: 18dc4dd608973eff7b4fbc69e20d0644bf6fd5bc3449b4254f271fdeebc2524a
font_02_sfnt_off0009a450.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A450 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9