Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f12ce99f62add6…

MALICIOUS

PDF

271.7 KB Created: 2022-03-14 15:21:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 0663f78b27706633c53a9bba1bd1e31e SHA-1: 439af01f3c640dd15f3414f8483c3128bcdf7552 SHA-256: a4f12ce99f62add62e49440c75f1400a409a0bd879894ed4b97389309f5b940e
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7039

Heuristics 6

  • 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.
  • 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://tevav.co.za/XSRYdR1H?utm_term=hidden+call+recorder+0.+72+apk PDF link annotation
    • http://islaminkiel.de/webmisr/uploadwebmisr/file/43640119007.pdfIn PDF document text
    • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/1621141d00f543---bamijezozoxarixod.pdfIn PDF document text
    • https://propertiproperty.com/Uploads/userfiles/files/lozaxitazebudinobidinugi.pdfIn PDF document text
    • http://onnetsolution.in/userfiles/file/6323421241.pdfIn PDF document text
    • http://tiszaladany.hu/upload/file/7345133438.pdfIn PDF document text
    • https://foodphotoshop.com/userfiles/files/22782581390.pdfIn PDF document text
    • http://grubstreet.ca/ckfinder/userfiles/files/38838816213.pdfIn PDF document text
    • https://equinox-e.com/upload/files/93532682414.pdfIn PDF document text
    • http://eachfun.com/ckfinder/userfiles/site_eachfun_com/files/5741409530.pdfIn PDF document text
    • https://concurs-euclid.ro/upload/fck/berup.pdfIn PDF document text
    • https://www.elshandmadedesign.nl/ckfinder/userfiles/files/37519983887.pdfIn PDF document text
    • http://apexnepaltravel.com/userfiles/file/nudax.pdfIn PDF document text
    • http://fanti-fitness.pl/uploads/assets/file/ragivawa.pdfIn PDF document text
    • https://actieaanbieding.com/upload/content/files/fomejujirar.pdfIn PDF document text
    • https://www-prod.ecpa.fr/uploaded/file/zalobefajag.pdfIn PDF document text
    • https://bishopsalamatkhokhar.org/userfiles/file/nawifutuzogegivetixiz.pdfIn PDF document text
    • http://rklatex.com/userfiles/file/88780435721.pdfIn PDF document text
    • https://szabolcsipeter.com/userfiles/file/dudikeduwuzolideninege.pdfIn PDF document text
    • http://kkagro.com/media/images/upload/file/nomidumox.pdfIn PDF document text
    • https://dioss.eu/files/ckfiles/file/3615898215.pdfIn PDF document text
    • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1622d7c4f16f65---88275000690.pdfIn PDF document text
    • http://www.imcet.org.tr/kcfinder/upload/files/xomoka.pdfIn PDF document text
    • http://hzeiger.com/userfiles/file/topikuvime.pdfIn PDF document text
    • http://ww2.forte.com.pl/js/ckeditor/kcfinder/uploads/files/goxukanavinumapip.pdfIn PDF document text
    • http://sahrugs.com/userfiles/file/50664347397.pdfIn PDF document text
    • http://beibarys.com/app/webroot/js/kcfinder/upload/files/jeriranosidemafi.pdfIn PDF document text
    • http://vietkinggroup.com/uploads/userfiles/file/tonunimupojunoje.pdfIn PDF document text
    • http://hkxhjfc.ltd/uploads/files/20220220005529.pdfIn PDF document text
    • https://www.italianamaterassi.it/admin/kcfinder/upload/files/63953600745.pdfIn PDF document text
    • http://www.kermaz.fr/js/kcfinder/upload/files/93491359088.pdfIn PDF document text
    • https://thegmsbihta.eruditiontech.com/userfiles/file/88771929023.pdfIn PDF document text
    • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161fd9b3796094---jufufiwilazakabanape.pdfIn PDF document text
    • http://alarcon-v.com/editor_upload_image/file/15824885936.pdfIn PDF document text
    • http://talcmanagement.com/uploaded_files/userfiles/files/xalobumobufonuzapajonunu.pdfIn PDF document text
    • http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1621cade891fbd---65489750153.pdfIn PDF document text
    • http://www.e-glasso.pl/galeria/files/gufiwibewetixam.pdfIn PDF document text
    • http://www.tributosantafesinos.com.ar/admin/kcfinder/upload/files/27841100288.pdfIn PDF document text
    • http://studioguagnoni.it/userfiles/files/27928357440.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 extracted file (font_00_sfnt_off0003d390.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003d390.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003d390.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D390 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003eab0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3EAB0 10684 bytes
SHA-256: b7bcd74fe10b9ca131708e24fcb8529ace9c4c51dd05350a0a1ce03b4b757e33
font_02_sfnt_off00040333.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40333 16780 bytes
SHA-256: 9812d24c6f9430c5fa65901c18aff609afe538a40fd4a89185dd3eafa0e083c4