Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af19833a09fccac…

MALICIOUS

PDF

248.0 KB Created: 2022-04-14 19:43:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 02fc2a5b368b41f0c6df1873de2aa6f2 SHA-1: 17281b775dd1bbfaf1862c5c249ec8a9c3b44cb0 SHA-256: 4af19833a09fccac1ff87a06b279984946e2807b6e2ce386202aadcd6faedba4
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7783

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://yoyep.co.za/XSRYdR1H?utm_term=juniper+srx110+datasheet PDF link annotation
    • http://analhospital.net/file/files/90639747932.pdfIn PDF document text
    • http://tangiahoang.com/skinkorea/Images_upload/files/tujowisifafemawiku.pdfIn PDF document text
    • https://sieuthimaytinhcu.vn/upload/files/50569122841.pdfIn PDF document text
    • https://qfse.co/images/uploaded_files/ckfinder/files/1645523350_9d3a5e6e97.pdfIn PDF document text
    • https://www.varoslod.hu/kcfinder/upload/files/lerakaburolonuzibukanu.pdfIn PDF document text
    • https://jovuximunises.weebly.com/uploads/1/3/0/8/130814448/lelupijuzomum_sidikinumiv_nuwazoz_vitelekudid.pdfIn PDF document text
    • http://www.sname.org.tw/sname/ckfinder/userfiles/files/kifeduriruwire.pdfIn PDF document text
    • http://motolargo.pl/userfiles/file/jakefeziboxobadaxinosuj.pdfIn PDF document text
    • http://ettermanenterprises.com/ckfinder/userfiles/files/6400158346.pdfIn PDF document text
    • https://tedesco.pl/userfiles/file/90483157797.pdfIn PDF document text
    • http://danamthanh.vn/userfiles/file/65724175038.pdfIn PDF document text
    • https://vazexisosumufil.weebly.com/uploads/1/3/4/4/134465451/5276053.pdfIn PDF document text
    • https://whatstrendingnj.com/userfiles/files/23193080174.pdfIn PDF document text
    • https://tuvitewolejuxow.weebly.com/uploads/1/3/4/6/134615754/1567786.pdfIn PDF document text
    • http://urbanconstructions.org/images/uploadedimages/file/59519602861.pdfIn PDF document text
    • http://webspace.mysdam.net/images/newsletter/files/kolare.pdfIn PDF document text
    • http://all-premium.com/user_file/files/85072946195.pdfIn PDF document text
    • http://henanshuangxin.com/d/files/zibebisagenitesab.pdfIn PDF document text
    • https://petpetmates.com/files/editor/file/ropaziredodanudotojir.pdfIn PDF document text
    • https://jefexalenu.weebly.com/uploads/1/3/4/8/134865696/6117633.pdfIn PDF document text
    • http://mitrasejati.co.id/assets/kcfinder/upload/files/80426730447.pdfIn PDF document text
    • http://edeins.com/userfiles/file/latufin.pdfIn PDF document text
    • https://mintedimages.com/ckfinder/userfiles/files/15516883351.pdfIn PDF document text
    • https://babycoach-borger.nl/userfiles/file/lagupevulunebujorug.pdfIn PDF document text
    • https://voctestbursa.org/editconsole/kcfinder/upload/files/pasekememoxetotuzutigozu.pdfIn PDF document text
    • http://cyklokomfort.cz/files/kcupload/files/pofuneka.pdfIn PDF document text
    • https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/162213cff49433---xodoxozuxikagasubewosu.pdfIn PDF document text
    • http://king-tableware.com/uploads/files/202203071348072956.pdfIn PDF document text
    • http://moonyart.ru/admin/ckeditor/kcfinder/upload/files/newumu.pdfIn PDF document text
    • https://sarna-zapiekanki.pl/ckfinder/userfiles/files/zoropuxilixupezipo.pdfIn PDF document text
    • http://yugang360.com/upload_fck/file/2022-3-18/20220318100834889575.pdfIn PDF document text
    • https://www.insideaccess.lk/assets/js/kcfinder/upload/files/98644602240.pdfIn PDF document text
    • https://csp-pub.com/stockages/files/6338226393.pdfIn PDF document text
    • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16203213b61a61---nebepiki.pdfIn PDF document text
    • https://unitedfightalliance.com/ckfinder/userfiles/files/tuvagijikureka.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_off00036f6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36F6D 10688 bytes
SHA-256: 2c155491d5fe1fcf99a6de7e0308385581bc495af792b5cf8aeca102e2e1c868
font_01_sfnt_off000387f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x387F1 19032 bytes
SHA-256: 7b2d84a45094d3257a02ec9ea59160d7f50edfbed25a9bafaa02b646ffd0bec9
font_02_sfnt_off0003b8a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B8A0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1