Malicious PDF — malware analysis report

Static analysis result for SHA-256 78274bae037a0332…

MALICIOUS

PDF

598.3 KB Created: 2022-02-24 06:55:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: b0dec7d861c9f4685af63df3b194795a SHA-1: b588165ef705520a7f463ff3fc33c690f1417b67 SHA-256: 78274bae037a0332ca7a8229d6701e41221c31f9ed1e042e8de517988738e677
154 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3544

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://loheb.co.za/XSRYdR1H?utm_term=basic+electronics+schematic+symbols+pdf PDF link annotation
    • http://duquenne-moteurs.fr/webroot/upload/files/rekomatopo.pdfIn PDF document text
    • https://mavibusiness.it/file/11128432448.pdfIn PDF document text
    • https://www.drukwerkmax.nl/public/admin/assets/global/plugins/kcfinder/upload/files/75043193004.pdfIn PDF document text
    • http://darelbachra.com/app/webroot/js/kcfinder/upload/files/6618459419.pdfIn PDF document text
    • http://sky1981.com/asset/uploads/files/87273313135.pdfIn PDF document text
    • http://berbun.com/user_img/file/goxusadanolasomufenosoge.pdfIn PDF document text
    • http://veterinariogiardinelli.it/userfiles/files/48960508095.pdfIn PDF document text
    • https://angkorphotographyguide.com/userfiles/file/babamifud.pdfIn PDF document text
    • http://zamaro.info/images/fcke_files/file/laxidilososok.pdfIn PDF document text
    • http://amidoux-peintures.com/ckfinder/userfiles/files/rizubinarelogemofewezetu.pdfIn PDF document text
    • http://pumarecovery.com/userfiles/files/remarefadaferi.pdfIn PDF document text
    • http://bhandarisurgical.com/ckfinder/userfiles/files/sapenovaz.pdfIn PDF document text
    • https://hchoanglong.vn/userfiles/file/furinegekulaluli.pdfIn PDF document text
    • http://statsale.com/data/upload/ck/files/vufajebobijeremifa.pdfIn PDF document text
    • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/70aghps9kohr0itovjft5n5937/84905317268.pdfIn PDF document text
    • http://rnralpha.cz/res/file/zivadobomoxuxez.pdfIn PDF document text
    • http://pdww.ru/ckfinder/userfiles/files/90892651499.pdfIn PDF document text
    • http://wellcomm.co.id/assets/kcfinder/upload/files/20271000747.pdfIn PDF document text
    • http://wellgroup.cz/UserFiles/File/4337865797.pdfIn PDF document text
    • https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/kgedpdb2or46kvoibmiftds3p1/mexisoxuzakog.pdfIn PDF document text
    • http://doks-films.com/pcms/content/file/39131825298.pdfIn PDF document text
    • http://xn--2e0b30g3uq7pay7m.com/upload/fckeditor/file/vanetavo.pdfIn PDF document text
    • http://www.leasebridge.com/CKUPimg/files/55889407210.pdfIn PDF document text
    • http://fullerton.kopanramen.com/uploads/files/85255917945.pdfIn PDF document text
    • http://playeasypiano.com/resources/fck_images/mexojamelosenawopikuv.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0008e5bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E5BB 11192 bytes
SHA-256: 9a34d9779978477b2ea8e8be4bbddb59b9109ca917991d9d30c5cd9802ee1dbd
font_01_sfnt_off0008ff85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FF85 19572 bytes
SHA-256: f79bec3def2f73439f6e5c63a542ecf7266dc5b7e67a787bf4c5148cb108c9c1
font_02_sfnt_off000932e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x932E6 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9