Malicious PDF — malware analysis report

Static analysis result for SHA-256 4509246606b8ceaf…

MALICIOUS

PDF

221.7 KB Created: 2022-02-15 09:56:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: 71b586f972308d3e9053d8384335940f SHA-1: 2ef49b573ecd1e4ddd2aadf392096ff1bb177c59 SHA-256: 4509246606b8ceaf6f39659157f89b72080a85f60adf0d7f4ab4b4334f6434bc
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8201

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://meesens.be/KrMee/Tekstverwerker/18585063246.pdf In PDF document text
    • http://exdebt.bg/userfiles/file/3910684650.pdfIn PDF document text
    • https://fundreamz.com/ckfinder/userfiles/files/bojupegawo.pdfIn PDF document text
    • http://hc6999.com/userfiles/files/dudugab.pdfIn PDF document text
    • http://qwerty.pl/_data/file/51117217303.pdfIn PDF document text
    • http://lovellreunion.com/clients/4/42/420738e4954c29d3cfd02fdb1bc9139f/File/jatilotaz.pdfIn PDF document text
    • https://batdongsandothanh.vn/luutru/files/26807016167.pdfIn PDF document text
    • https://riwg.in/userfiles/file/74490552655.pdfIn PDF document text
    • http://ipceurope.com/assets/file/fedurosuwutuvudowa.pdfIn PDF document text
    • https://btcauction.vn/hinhanh/file/98125978643.pdfIn PDF document text
    • https://myleague.vn/uploadfiles/kcfinder/files/71480335697.pdfIn PDF document text
    • http://seasonmediagroup.com/pic/file/62376667404.pdfIn PDF document text
    • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/5aqgittl9dn1cu799lakrepl33/fuluzez.pdfIn PDF document text
    • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/87951549193.pdfIn PDF document text
    • https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/4ebbfa84371167007813faff089d2b11/40424253153.pdfIn PDF document text
    • http://iba.education/kcfinder/upload/files/pofufubaguwatezotaz.pdfIn PDF document text
    • http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161e0738ee1103---14783494734.pdfIn PDF document text
    • https://pensiuneaselina.ro/userfiles/file/xamezidisivamada.pdfIn PDF document text
    • https://wspaperbag.com/userfiles/file/46785109951.pdfIn PDF document text
    • https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/7d2ff21bcaa01be8de1ed766eab13b6e/rekovukubuzelasuvumobuxi.pdfIn PDF document text
    • https://dailyiat.com/html_upload/file/bunezosi.pdfIn PDF document text
    • https://malashealthcare.com/userfiles/files/nenevomaluk.pdfIn PDF document text
    • http://aan.kz/ckfinder/userfiles/files/ruwozefaz.pdfIn PDF document text
    • https://officialbacknumber.com/editor_up/40453581145.pdfIn PDF document text
    • http://gdfsztal.com//uploadfile/files/73785604574.pdfIn PDF document text
    • http://srihemkuntschoolint.com/slbdavbatala/userfiles/file/96653399337.pdfIn PDF document text
    • http://honeystraw.getrade.net/uploadfiles/file/53543658862.pdfIn PDF document text
    • http://ideatity.com/ckfinder/userfiles/files/11730689440.pdfIn PDF document text
    • https://tdh-europe.org/files/files/rigolil.pdfIn PDF document text
    • http://abbaorphancare.org/survey/userfiles/files/domajugomevosimupupofek.pdfIn PDF document text
    • http://progettarecasa.com/userfiles/files/78271702436.pdfIn PDF document text
    • http://liburnia.pl/userfiles/file/tinumevikuvegagekenuwavax.pdfIn PDF document text
    • https://fecuq.co.za/XSRYdR1H?utm_term=android+alertdialog+button+text+colorPDF link annotation
    • https://samuelben-horin.com/userfiles/file/64757666232.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_off000305b2.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000305b2.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000305b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x305B2 10700 bytes
SHA-256: 11a330b2146ac666c6803a7bfc78da704d9aff4818430387b7a3503d746bf85a
font_01_sfnt_off00031e24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31E24 18876 bytes
SHA-256: 2babcd27a20d9ab2fb4730e98205750ba89d93d542f43fb8379b487903181a10
font_02_sfnt_off00035029.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35029 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9