Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd72ca706d97a79a…

MALICIOUS

PDF

455.5 KB Created: 2022-03-11 20:18:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: e692911aacbb3dc820892636026650e4 SHA-1: 68876de56e063105cccc99f5a16b0d23b0723ce9 SHA-256: cd72ca706d97a79a0d9a4e3d1ff063d950e7ee7c007ae685d4fb679c7bf06546
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3195

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://wirut.co.za/XSRYdR1H?utm_term=libros+sobre+arquitectura+gotica+pdf PDF link annotation
    • http://kredoteka.ru/uploads/file/67665330421.pdfIn PDF document text
    • http://potolokomsk.ru/ckeditor/kcfinder/upload/files/dogilabebijifin.pdfIn PDF document text
    • http://kochi-east-rc.com/admin/kcfinder/upload/files/mulozafetopunegumuxilo.pdfIn PDF document text
    • https://www.jaegeraviation.com/ckfinder/userfiles/files/27817033068.pdfIn PDF document text
    • http://dade666.com/userfiles/202202file/2022022503075570554.pdfIn PDF document text
    • https://kecweleri.kendalkab.go.id/kcfinder/upload/files/gatudusulemuxulebo.pdfIn PDF document text
    • https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/ea2d8bc25cbb6473ce9daf381f77f774/zexerokonexib.pdfIn PDF document text
    • http://reputesystems.com/app/webroot/uploads/files/45448028485.pdfIn PDF document text
    • http://www.regional4.org.ar/administrador/kcfinder/upload/files/67562237810.pdfIn PDF document text
    • https://www.sinditamaraty.org.br/site/public/ckeditor/kcfinder/upload/files/62249749856.pdfIn PDF document text
    • https://funeralinnovations.com/copilots/upload/files/75827033163.pdfIn PDF document text
    • http://optykglowacki.pl/obrazki/files/buxitejinekunividovetibow.pdfIn PDF document text
    • http://webminmax.com/userfiles/file/2456217862.pdfIn PDF document text
    • http://www.oloron-ste-marie.fr/Oloron/kcfinder/upload/files/tidobatug.pdfIn PDF document text
    • http://awfiowv.love-mrt.com/upload/files/zewusawovowodol.pdfIn PDF document text
    • http://www.jindatunnel.com/up_files/file/10137116476.pdfIn PDF document text
    • https://kinhdoanhvaphapluat.com/img-dn/files/wuzijosowudezitage.pdfIn PDF document text
    • https://babamansurkurhuseyin.com/uni/yuklemeler/file/76631794727.pdfIn PDF document text
    • https://themalc.org/files/file/tezifajakifufepigulobumu.pdfIn PDF document text
    • http://freeorden.com/media/file/79779845728.pdfIn PDF document text
    • https://kupro.bg/upload/wyswyg/files/45820682585.pdfIn PDF document text
    • http://yztools.com/images/upload/File/jorasodajew.pdfIn PDF document text
    • http://gimhaejazz.com/fckeditor/userfiles/image/joxijejenilavofanokapa.pdfIn PDF document text
    • http://lycee-elm.info/userfiles/file/rafunisot.pdfIn PDF document text
    • http://furasskutat.hu/admin/kcfinder/upload/files/bibevakemokareribufipane.pdfIn PDF document text
    • http://bortran.com/upload/image/file/20220311022226.pdfIn PDF document text
    • https://pmb.unimal.ac.id/assets/plugin/kcfinder/upload/files/54332242650.pdfIn PDF document text
    • https://balatonfurediallatorvos.hu/userfiles/file/xafefasatuxam.pdfIn PDF document text
    • https://episcopiaoradiei.ro/files/23354118785.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00069d3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69D3C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0006b457.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B457 22060 bytes
SHA-256: 6fa8bb998db4130db1e232e64e93db302c4ff5effe6c257bff0b6e60040ef192
font_02_sfnt_off0006ec7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EC7F 10988 bytes
SHA-256: 9b25604d6811d4a3af37c42203fa7b0dd4571afcfdb19b51acccc8b988ed1cd8
font_03_sfnt_off0007056e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7056E 1696 bytes
SHA-256: 28c5bcedffb0f63c0f18ed07264126f7c833899b916de9a351f9850be7cb6bae