Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f642bce9f42fa27…

MALICIOUS

PDF

339.0 KB Created: 2022-03-29 09:43:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: 3648fea971a04e923b3816ea7074dea0 SHA-1: d33d5ba2b1f3d9a62a8bdd3e061e8f5f005b20ea SHA-256: 8f642bce9f42fa27db5dd8e932938085b6004940147e0832f8f374299f65c0cc
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7724

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://fecuq.co.za/XSRYdR1H?utm_term=harris+benedict+form%C3%BCl%C3%BC+hesaplama PDF link annotation
    • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/42a8l5d4h163pm523gsq44img5/tafoxolonad.pdfIn PDF document text
    • http://birons.net/wp-content/plugins/super-forms/uploads/php/files/ba87d367e4a438db55c60fa8d221ab8e/xoxesivizefavifobitewor.pdfIn PDF document text
    • http://electronicascanaresas.com/kcfinder/upload/files/vejofipefagivifodano.pdfIn PDF document text
    • http://moje-stranky.eu/userfiles/file/retasitulanigo.pdfIn PDF document text
    • http://thiennhanduong.com/ckeditor/kcfinder/upload/files/lerokopukesimen.pdfIn PDF document text
    • https://www.adamtraveljordan-ru.com/mypanel/includes/ckeditor/kcfinder/upload/files/wezajefidimibe.pdfIn PDF document text
    • https://www.steyr-mannlicher.hu/admin/kcfinder/upload/files/lelokilevo.pdfIn PDF document text
    • https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/ib80kqqhef6qeau9p8lggituhi/15863689535.pdfIn PDF document text
    • http://bhhangkhong.com/upload/images/files/64217454426.pdfIn PDF document text
    • http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16221b6fc2cc1f---litawiwabukozuje.pdfIn PDF document text
    • http://ck-kutnahora.cz/gais/image/file/66315302948.pdfIn PDF document text
    • https://biomisszio.baritz.hu/tmp/78363707562.pdfIn PDF document text
    • http://robinph.com/images/file/bidum.pdfIn PDF document text
    • http://presssimayeshahr.ir/pic/file/jonutodev.pdfIn PDF document text
    • https://happycpdl.com/backend/web/kcfinder/upload/files/mabojoripudexajawarolowuz.pdfIn PDF document text
    • http://dispensapertutti.com/userfiles/files/jegujulifutexetezebafo.pdfIn PDF document text
    • http://valburysekuritas.co.id/upload/files/diluwavid.pdfIn PDF document text
    • http://holzbau-napetschnig.at/xemegimu.pdfIn PDF document text
    • https://centralnanaimo.gocascadia.com/images/cms/file/xozezovefemobosexix.pdfIn PDF document text
    • https://adasms.fr/userfiles/file/74077411759.pdfIn PDF document text
    • http://perksys.com/userfiles/file/dokijimakovujaximovivifox.pdfIn PDF document text
    • http://hide-bo.com/img/tmp/file/kelimikosew.pdfIn PDF document text
    • http://www.rafaellucenaehijos.com/ckfinder/userfiles/files/lusuwabizimomorumojut.pdfIn PDF document text
    • https://norservis.cz/files/files/63789499350.pdfIn PDF document text
    • https://entabe.jp/upload/20220205/files/87119340649.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_off0004dc7e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004dc7e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004dc7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DC7E 11208 bytes
SHA-256: b94e3dd521143fe1535bea1226265f345b5d8394cc410d5d97b46e1a55f40ae1
font_01_sfnt_off0004f62a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F62A 18440 bytes
SHA-256: dfd34ea4accd698cccd3b2ca9e189e5903798b1c944c0d827f40098121fa52ec
font_02_sfnt_off00052401.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52401 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9