Malicious PDF — malware analysis report

Static analysis result for SHA-256 7826a19aca6d4a84…

MALICIOUS

PDF

289.7 KB Created: 2022-02-22 07:06:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 16cc8778dc8b2640b537d4df26a5aac9 SHA-1: 13d52495760d769738a1ee0945da4c6275931788 SHA-256: 7826a19aca6d4a8490df0f96d14836f38190ae2c26984a3fc849a024e0ddee63
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7614

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://yubit.co.za/XSRYdR1H?utm_term=photo+search+free PDF link annotation
    • http://techscreening.com/userfiles/files/vagiginuk.pdfIn PDF document text
    • https://cebubigsellers.com/userfiles/file/55249410678.pdfIn PDF document text
    • http://nbkhjc.com/uploads/202107/file/210726080340665329czrto0uk0ev3.pdfIn PDF document text
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161766b2ca65a5---47564640924.pdfIn PDF document text
    • http://magnesy-reklamowe.propaganda.fm/pliki/file/74070948962.pdfIn PDF document text
    • http://liceoadultos.juniorcollege.cl/userfiles/files/95172792802.pdfIn PDF document text
    • http://vdadanang.vn/app/webroot/assets/files/25274525568.pdfIn PDF document text
    • http://intertribo.sk/files/98580143804.pdfIn PDF document text
    • http://cwesp.biz/upload/file/83075649322.pdfIn PDF document text
    • http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/160fdd3b4226a2---jajowefubebuparigu.pdfIn PDF document text
    • https://hurghadalife.net/userfiles/files/82612082054.pdfIn PDF document text
    • http://saikunghouse.hk/userfiles/98165171939.pdfIn PDF document text
    • https://nhatngudongkinh.com/upload/ckupload/files/54801950496.pdfIn PDF document text
    • http://chretkinia.pl/userfiles/file/59027947543.pdfIn PDF document text
    • http://cosonhuath.com/hinhanh_fckeditor/file/84958862843.pdfIn PDF document text
    • https://vannordenvastgoed.nl/userfiles/file/nitep.pdfIn PDF document text
    • http://karate-talence.com/newsite/userfiles/files/digukajavaneremin.pdfIn PDF document text
    • https://ismet.com.br/ckfinder/userfiles/files/xitexovolaf.pdfIn PDF document text
    • https://www.patisserie-flechais.fr/ckfinder/userfiles/files/posorisomesejopub.pdfIn PDF document text
    • https://grandhotelushba.com/userfiles/file/goxefiki.pdfIn PDF document text
    • http://mirgalosh.moscowfashion.net/content/xuploadimages/file/52181595329.pdfIn PDF document text
    • http://bptramptour.pl/files/file/kodavikired.pdfIn PDF document text
    • https://klcmekatronik.com/ckfinder/userfiles/files/fujavetaxo.pdfIn PDF document text
    • http://malir-naterac.info/UserFiles/File/68168611043.pdfIn PDF document text
    • http://galaxyjewel.cn/uploadfile/files/76116903493.pdfIn PDF document text
    • http://omonetach.pl/foto/ilustracje/file/24419640788.pdfIn PDF document text
    • http://laiyi-art.com/userfiles/file/47812222997.pdfIn PDF document text
    • http://ac-kenigsberg.ru/files/file/rijazirizoxenujo.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_off00041c2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41C2D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004334d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4334D 10192 bytes
SHA-256: 34cfa1a600eec3cbf379f18157c677a877692313015dcf75d56349d9307dd727
font_02_sfnt_off00044a52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44A52 17748 bytes
SHA-256: 0143a220fd393acde666ecabe9dabd3bd4c19c88a9e46b2216e7bb75376fed50

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