Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c0c2ef4a0e5b10…

MALICIOUS

PDF

226.6 KB Created: 2022-03-28 03:50:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-26
MD5: c77ceaec0064b4d6e71e579e92651624 SHA-1: f908a81272cd5e5b4389563d9f60c5d53a5f8ad8 SHA-256: a9c0c2ef4a0e5b10f650d19ca2fda851c16da71600c0e89cebff85c7048907b1
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9448

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://techdiligence.net/assets/kcfinder/upload/files/fejokuruk.pdf In PDF document text
    • http://test.xn--b1adbeobutb0arf.xn--p1ai/kcfinder/upload/files/19974452007.pdfIn PDF document text
    • http://thermcom.cz/userfiles/file/bepiwodubeweto.pdfIn PDF document text
    • http://miraesusan.com/ckupload/files/26851322355.pdfIn PDF document text
    • https://shibbirs.com/media/files/83348434340.pdfIn PDF document text
    • https://bursac.net/userfiles/file/wadufowidamomojuvu.pdfIn PDF document text
    • https://coe-project53.istc.int/app/webroot/js/kcfinder/upload/files/nezobuxaz.pdfIn PDF document text
    • http://cmi.nfe.go.th/ckfinder/userfiles/files/38153666747.pdfIn PDF document text
    • http://www.alm-machines.be/kcfinder/upload/files/72051532004.pdfIn PDF document text
    • http://angolfuvar.com/admin/ckeditor/kcfinder/upload/files/13858073528.pdfIn PDF document text
    • https://ckmusicdesign.nl/userfiles/file/fupefunurapogozewebuk.pdfIn PDF document text
    • http://accuway.yun2u.com/upload/files/53275231589.pdfIn PDF document text
    • https://habibitours.org/ckfinder/userfiles/files/73192135484.pdfIn PDF document text
    • https://tanhoaphat.vn/userfiles/file/sititijavasusaxidujokiwi.pdfIn PDF document text
    • https://alteanetworks.fr/img/file/96672963603.pdfIn PDF document text
    • http://alkanboya.com/files/file///tisomelavaginekadipiw.pdfIn PDF document text
    • http://presupuestos.pavysan-bigmat.es/ckfinder/userfiles/files/52980496692.pdfIn PDF document text
    • https://hotel-la-licorne.fr/userfiles/file/81613536225.pdfIn PDF document text
    • http://enidental.com/userfiles/file/20220214045053.pdfIn PDF document text
    • https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/3fsdi7niehfo0foa1tg2p3f699/zegebisozobalim.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/383d1b5979b90709825e523bb70b7bfb/nolowazijigaw.pdfIn PDF document text
    • http://margheritango.it/userfiles/file/kikigazewakevexiboluf.pdfIn PDF document text
    • https://www.3zslitomysl.cz/admin/editor/kcfinder/upload/files/8425000951.pdfIn PDF document text
    • http://baikalsg.ru/uld/files/39916638149.pdfIn PDF document text
    • http://hyeminshop.com/DATA/files/52160754504.pdfIn PDF document text
    • http://skoleniridicubrno.cz/ckfinder/userfiles/files/govonir.pdfIn PDF document text
    • https://magnanelli.com/userfiles/file/gujuf.pdfIn PDF document text
    • https://karmak-makina.com/upload/files/76930811986.pdfIn PDF document text
    • http://asavn.vn/uploads/userfiles/file/10917997129.pdfIn PDF document text
    • https://colod.co.za/XSRYdR1H?utm_term=usa+porn+starPDF 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_off00031daf.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00031daf.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00031daf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31DAF 18384 bytes
SHA-256: 7be48b5c2f4aafac6becd42e4db240a45847494cb2c3e91669c9c2b99419bf1f
font_01_sfnt_off00034d60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34D60 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0003647f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3647F 9984 bytes
SHA-256: 8082f425a0c701e7ed310f04815012604cee9da468978eb46636aa40b9e38071