Malicious PDF — malware analysis report

Static analysis result for SHA-256 4788f4ffa44ab947…

MALICIOUS

PDF

327.4 KB Created: 2022-02-25 22:55:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: eac22062250cad6e6ba1e47812864b05 SHA-1: 2642ab71d2627e3460413bd11d3626c8ece6ba61 SHA-256: 4788f4ffa44ab947bcabc899f6d1bef4aa89b3aedb8343a9f32d62fef0a690b6
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5565

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=converting+fractions+to+decimals+math+drills+answers PDF link annotation
    • http://xn--rssx31a7tec6p.com/upload/userfiles/files/20211006135126.pdfIn PDF document text
    • http://premo.at/userfiles/file/82831892728.pdfIn PDF document text
    • http://bantinnhadat.com/users/files/fuvakegutefifinoligulanu.pdfIn PDF document text
    • http://safires.cz/ckfinder/userfiles/files/60633270151.pdfIn PDF document text
    • http://zzzwchem.com/upload/files/77634696120.pdfIn PDF document text
    • https://estduquebec.com/scripts/php/xenocode/lib/ckfinder/userfiles/files/81381578434.pdfIn PDF document text
    • http://zussobrance.sk/grafika/dokumenty/39758598454.pdfIn PDF document text
    • http://bipaf.org/2009_home/upload/editor/file/wawavogepexusuge.pdfIn PDF document text
    • https://rent-1.es/ckfinder/userfiles/files/35287805671.pdfIn PDF document text
    • https://stopserv.ru/files/file/kotigixofagemelebiz.pdfIn PDF document text
    • http://hzxf.com/images/upload/File/lalisolopiwezu.pdfIn PDF document text
    • http://helpnri.org/kcfinder/upload/files/fozamemivevo.pdfIn PDF document text
    • https://mogilew.ru/userfiles/file/74820693812.pdfIn PDF document text
    • http://szyqjsj.com/UploadFile/file/20210816215105104.pdfIn PDF document text
    • http://angerdress.store/ckfinder/userfiles/files/90990314429.pdfIn PDF document text
    • http://cuspsurgeons.com/admin/kcfinder/upload/files/31259186864.pdfIn PDF document text
    • https://careersourcechipola.com/files/public/41522924491.pdfIn PDF document text
    • http://gira-classix.su/kcfinder/upload/files/31748825437.pdfIn PDF document text
    • http://terrigena.cz/data/pic/files/tobaxanazabopoke.pdfIn PDF document text
    • http://gamenavigator.su/userfiles/files/68024936394.pdfIn PDF document text
    • http://www.agot.pl/upload/file/megudidap.pdfIn PDF document text
    • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161ff9e03124cd---62179988586.pdfIn PDF document text
    • http://yoshikawaunyu.com/kcfinder/upload/files/3l3EnSPT2021-12-24.pdfIn PDF document text
    • http://odesignlab.ru/admin/ckfinder/userfiles/files/89444264377.pdfIn PDF document text
    • https://jsptti.com/ckeditor/ckfinder/userfiles/files/bifuloderutobojagujatuzug.pdfIn PDF document text
    • https://mimpishio1.com/contents/files/47766889201.pdfIn PDF document text
    • http://altiro.nl/home/tjerk/file/fukizugobafimevofef.pdfIn PDF document text
    • http://furaz.eu/userfiles/files/70045951009.pdfIn PDF document text
    • https://hometeamcorp.com/images/usr/midomevexex.pdfIn PDF document text
    • http://xahscw.com/userfiles/file/84618275453.pdfIn PDF document text
    • http://luluscafeonline.com/uploads/files/85913515500.pdfIn PDF document text
    • https://enilubricant.hoakhanh.vn/uploads/image/files/96275223011.pdfIn PDF document text
    • https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612fd240d78af---63416047350.pdfIn PDF document text
    • http://mypham.privia.vn/userfiles/file/xozopajufuwenitipirazu.pdfIn PDF document text
    • http://mirgalosh.moscowfashion.net/content/xuploadimages/file/babojo.pdfIn PDF document text
    • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135fc6f589f6---14499532891.pdfIn PDF document text
    • http://alburigiott.it/userfiles/files/24752278502.pdfIn PDF document text
    • http://emaaravm.net/upload/files/38789113881.pdfIn PDF document text
    • http://cerrutistudio.eu/userfiles/files/gepogolabixixozepu.pdfIn PDF document text
    • http://yusungchart.com/userData/board/file/bufedepatumot.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_off0004a65d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A65D 20260 bytes
SHA-256: e0e2638630dedf5a8bfc2fd112c342e4cfbb79c4e63388a00b35f9b3f7aa5534
font_01_sfnt_off0004dbda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DBDA 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004f2fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F2FA 11108 bytes
SHA-256: 61b237ce55a3695d32555c4c36db36559d6b7d498479e0c042653c70ddbed5bc