Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd37a1135e77546…

MALICIOUS

PDF

426.4 KB Created: 2022-02-09 09:03:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: a92c54d29746317b864b060f973df23d SHA-1: 9e9e410247e0277ae945a8440635ca4d7952edba SHA-256: 3dd37a1135e7754628bed3dabe352a65f7e3547b616103801a7a1b92bcd40ef1
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5320

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://tevav.co.za/XSRYdR1H?utm_term=cadbury+nigeria+annual+report+2017+pdf PDF link annotation
    • https://hse.tw/upload/file/58744604622.pdfIn PDF document text
    • http://for-man-woman.ru/userfiles/files/84353469375.pdfIn PDF document text
    • https://h16hr15k-h19hr37urn.com/contents/files/62209146559.pdfIn PDF document text
    • https://dienlanhhonganh.com/images/pic/file/42230416799.pdfIn PDF document text
    • https://www.speeddating.lt/speeddating/ckfinder/userfiles/files/35565183370.pdfIn PDF document text
    • http://chokmanee.com/userfiles/file/27510093058.pdfIn PDF document text
    • https://aurastaffing.es/upload/file/mefuboku.pdfIn PDF document text
    • http://drcleancenter.com/uploads/files/202201032246238943.pdfIn PDF document text
    • http://studiocommercialedelpiano.it/userfiles/files/17336150719.pdfIn PDF document text
    • http://bezpiecznamlodosc.org/files/file/15534969721.pdfIn PDF document text
    • http://aeon-dev.com/uploads/files/202109210151497555.pdfIn PDF document text
    • http://hasdeu.md/data/userfiles/files/poxafofobit.pdfIn PDF document text
    • http://marty-triple-m.ch/inhalt/files/gevinogasanojimomugivox.pdfIn PDF document text
    • http://alde-pace.org/ckfinder/userfiles/files/25478210953.pdfIn PDF document text
    • https://niboparis.com/upload/fckeditor/files/73824060073.pdfIn PDF document text
    • https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/161b7223eee819---86788674734.pdfIn PDF document text
    • http://studiofelician.com/userfiles/files/28760858660.pdfIn PDF document text
    • http://pc580.cn/upload_fck/file/2021-12-2/20211202044748800764.pdfIn PDF document text
    • http://mega-gold.com/userfiles/files/59330951821.pdfIn PDF document text
    • http://palestraarkadia.it/userfiles/files/9087292067.pdfIn PDF document text
    • http://conepe.org.br/public/ckeditor/kcfinder/upload/files/borivibizuxiwatekugudiw.pdfIn PDF document text
    • http://ukz-service.ru/kcfinder/upload/files/63024677210.pdfIn PDF document text
    • http://www.cadex.biz/app/webroot/kcfinder/upload/files/17421396986.pdfIn PDF document text
    • http://wxhsbl.com/ckfinder/userfiles/files/20211202_221235.pdfIn PDF document text
    • http://cn-noah.com/uploadfile/file/xinozabawiwasamadavo.pdfIn PDF document text
    • http://nextgenship.net/upload/file/20210707162568157266.pdfIn PDF document text
    • http://boilerservis.ru/uploads/files/54703890531.pdfIn PDF document text
    • http://mingzhicc.com/userfiles/files/93638262909.pdfIn PDF document text
    • http://www.museopizarra.com/ckfinder/userfiles/files/bonakizexuxomavojova.pdfIn PDF document text
    • https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/7ded254f26d3822aa71831ee4348d845/fikapizifagig.pdfIn PDF document text
    • http://alzinda.fr/ckeditor/kcfinder/upload/files/lenabovavuruzolazisijajow.pdfIn PDF document text
    • https://filmari-arad.ro/files/file/buzawefasew.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_off00063791.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63791 11236 bytes
SHA-256: 15147266847d7c61a20100192a075511c6fce55e45b21ff09fb1a61d490a6a0b
font_01_sfnt_off000651b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x651B0 18304 bytes
SHA-256: 5a1641a65e8642deab0fe5f5c4f3f8d23d64bab346c6e887b27489eb61f8bc9d
font_02_sfnt_off000681f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x681F3 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9