Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af8a5faf862e533…

MALICIOUS

PDF

309.0 KB Created: 2022-02-24 09:07:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 5739bdd6a1e637d21ebb095fb48a1cf8 SHA-1: c1a4d2409be16394be5e45c4433c0594307d755d SHA-256: 4af8a5faf862e533593db7a3732bac49eb8b12f0b9020de00b18e8e257b70c1b
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6935

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=anti+spyware+free PDF link annotation
    • http://myphamasia.net/upload/files/15827555048.pdfIn PDF document text
    • https://cyberbirddog.com/userfiles/files/17566981903.pdfIn PDF document text
    • http://fajni565.fun4two.pl/uploads/assets/file/11542894502.pdfIn PDF document text
    • http://handsonmontessoripk.com/userfiles/files/mulirafagofupawomufefo.pdfIn PDF document text
    • http://etiquettes-adhesives-bobine.fr/kcfinder/upload/files/mapixiwaratuvoxog.pdfIn PDF document text
    • https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/lct14ge1pu53igjmflaja4fhie/19417941700.pdfIn PDF document text
    • http://kaies.cn/upfiles/210705035616406003s9ufom.pdfIn PDF document text
    • http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1612758f3b802f---pijujipemijumomikati.pdfIn PDF document text
    • http://sosnovgeo.ru/userfiles/file/kafoxatuvemulutukurobagin.pdfIn PDF document text
    • http://reklama-kemerovo.ru/files/files/76255838798.pdfIn PDF document text
    • https://zivotzaokny.eu/res/file/22813900087.pdfIn PDF document text
    • https://festacontinua.it/public/file/14545127307.pdfIn PDF document text
    • http://egyptlance.com/userfiles/file/gotatowilapupusudon.pdfIn PDF document text
    • http://tamtamphat.com/upload/files/57492687063.pdfIn PDF document text
    • https://brincandoeaprendendo.com/fotosempresa/files/89215510852.pdfIn PDF document text
    • https://pemaboutiquehotel.com/assets/userfiles/files/8918683879.pdfIn PDF document text
    • http://veedik.com/assets/admin/kcfinder/upload/files/mixixilolaneseg.pdfIn PDF document text
    • http://kozhencherrymtc.org/userfiles/file/vebonukewuragelude.pdfIn PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/30824709386.pdfIn PDF document text
    • http://thayloilocnuoctaihanoi.net/upload/files/xaziwowawopepaf.pdfIn PDF document text
    • http://bassbasement.org/userfiles/file/38416218735.pdfIn PDF document text
    • https://bomando.bomsolar.com/uploadfiles/files/dabejisoxunukatojo.pdfIn PDF document text
    • https://cuisinescartier.ca/upload/editor/file/madoviduz.pdfIn PDF document text
    • http://vibrator4you.cz/UserFiles/File/26080008591.pdfIn PDF document text
    • http://hkwwta.org/userfiles/98754249139.pdfIn PDF document text
    • https://htlexpress.com/ckfinder/userfiles/files/lekudapukoxitagezusuti.pdfIn PDF document text
    • https://khabul.mn/mmpa/userfiles/files/46513561441.pdfIn PDF document text
    • http://jpiano.net/userData/ebizro_board/file/sezinuxaxidug.pdfIn PDF document text
    • http://www.novosib-sport.ru/ckfinder/userfiles/files/tekimi.pdfIn PDF document text
    • https://adproissy.emailingmanager.com/uploads/editor/file/jexupaxutakuwakapezuluta.pdfIn PDF document text
    • http://mskgroup-spb.ru/upload/file/lukolojalesuli.pdfIn PDF document text
    • http://vejwun.cz/images/fewevik.pdfIn PDF document text
    • http://jun-travel.com/userfiles/file/jiwoxirizibogoxixewagaxu.pdfIn PDF document text
    • http://xaydungphongphu.com/uploads/files/17043995525.pdfIn PDF document text
    • http://humanitool.ru/userfiles/file/70376185006.pdfIn PDF document text
    • http://unnatiwelfareorganization.com/ckfinder/userfiles/files/mivupaz.pdfIn PDF document text
    • https://zemiigori.com/uploads/file/borebabusubefalita.pdfIn PDF document text
    • http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/16139eff924f13---55497846982.pdfIn PDF document text
    • https://mavibusiness.it/file/kifotesuweroj.pdfIn PDF document text
    • http://poaglasses.com/uploads//files/202108082147046175.pdfIn PDF document text
    • http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/33939796360.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_off00046077.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46077 10368 bytes
SHA-256: 85604f33af8a0953fde4e3d15ee86545ff1559b9f688c18b59adf50a6cbb5660
font_01_sfnt_off00047824.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47824 20448 bytes
SHA-256: fdc8f1f3c55c3f8cda74ebed296eabdf6aaf4d1d5a6af344d4856a2536aef890
font_02_sfnt_off0004ad22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AD22 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9