Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6ea281a7d705170…

MALICIOUS

PDF

408.2 KB Created: 2022-03-04 13:53:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-17
MD5: 8f1b32804a853fffa0f2c0cf15992eda SHA-1: fab1e1fe3ac9c4b298e60f49b295f46aa16ae5f8 SHA-256: b6ea281a7d7051705deae2869bdc5fa6956afc92d5959809fa6b940a544eeb2e
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7151

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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=bd+passport+online+form PDF link annotation
    • http://egimmo.ch/kcfinder/upload/files/xigegikula.pdfIn PDF document text
    • https://femagnet.com/upload/edu/article/file/ziwumelixeteku.pdfIn PDF document text
    • https://kingsnews.org/app/webroot/js/image/files/gegejuxalubakowutokebak.pdfIn PDF document text
    • https://ritascreation.com/userfiles/file/webuxabilemixisanotafe.pdfIn PDF document text
    • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16213523a05df5---rekekivubuj.pdfIn PDF document text
    • http://euredit-editions.com/userfiles/file/siduwevarozuwazas.pdfIn PDF document text
    • https://linardi.ru/files/file/zerojisobupuxobev.pdfIn PDF document text
    • http://yugang360.com/upload_fck/file/2022-2-9/20220209120310376220.pdfIn PDF document text
    • http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/16201a27b5150b---romefemalesulajukeruzob.pdfIn PDF document text
    • http://reklamnizbozi.cz/data/upload/files/gugebedetokupomuzu.pdfIn PDF document text
    • http://quranday.org/userfiles/file/nezileteju.pdfIn PDF document text
    • https://abcdev.opusviewdev.com/app/webroot/js/image/files/tamapin.pdfIn PDF document text
    • http://www.sctiec.com/up_files/FCK/file/siniro.pdfIn PDF document text
    • https://tekdalyapi.com/upload/ckfinder/files/7213779588.pdfIn PDF document text
    • https://balmbeach.hometeamcorp.com/images/usr/varagifetegale.pdfIn PDF document text
    • https://aravalivssamiti.org/admin/assets/ckeditor/kcfinder/upload/files/75624963246.pdfIn PDF document text
    • https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/162165bf2dd05c---65843180114.pdfIn PDF document text
    • http://sostrevalli.it/userfiles/files/20916469397.pdfIn PDF document text
    • https://nevjegyzek.eu/uploads/file/pabejufiji.pdfIn PDF document text
    • https://wita.lt/images/files/18265836312.pdfIn PDF document text
    • http://bukhatirhomes.com/userfiles/file/buxegus.pdfIn PDF document text
    • http://zhuoer.ltd/userfiles/file/82019134197.pdfIn PDF document text
    • https://bor-diing.com/upload/files/sasoxuwumax.pdfIn PDF document text
    • https://polytex.de/sites/default/files/sasoko.pdfIn PDF document text
    • http://virtualcharityevents.com/vce_cake/files/files/jijovofumip.pdfIn PDF document text
    • http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1620f7ac316cf1---fobopurutojunisog.pdfIn PDF document text
    • https://samoinstitute.mn/uploads/assets/file/73281118429.pdfIn PDF document text
    • https://vrm.vn/kcfinder/upload/files/38072841684.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_off0005ef98.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005ef98.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005ef98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EF98 10712 bytes
SHA-256: 37fbdd1fb748f759d83745e75ba3e5eecbaff6ad3876c6f2c09e8f4d818f65a9
font_01_sfnt_off00060827.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60827 19008 bytes
SHA-256: d05e1355fbed8e4248fd7fc315c93a23a1764cd1d5359b0ae992623c4b973724
font_02_sfnt_off00063a51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63A51 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9