Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d3bf315c90e3fb9…

MALICIOUS

PDF

443.4 KB Created: 2022-03-20 21:26:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-14
MD5: e544d1986ed4f99c53c0a4280744494c SHA-1: e10d1346f650b855d5433a8ac97dea127f14263d SHA-256: 5d3bf315c90e3fb9f26746f961b22bcd0d9f0265af7108c8ed85b83fabf3236e
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5095

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://norin.co.za/XSRYdR1H?utm_term=childrens+bed+sheets+full+size PDF link annotation
    • https://gatia.kone-equicentrum.cz/userfiles/files/69915920127.pdfIn PDF document text
    • http://www.studioamorosi.com/notizie/allegati/xesaguxovosafixalumetuvat.pdfIn PDF document text
    • http://travelsolutions.co/ckeditor/kcfinder/upload/files/disotojow.pdfIn PDF document text
    • http://scelosal.org/ckeditor/kcfinder/upload/files/xefetupifenujukotewa.pdfIn PDF document text
    • https://www.monacruises.com/html/scripts/ckeditor/kcfinder/upload/files/sexoturamipozifatilu.pdfIn PDF document text
    • https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/n72bbrh5kknv0ugj6qlkp6homa/wuzexanorowase.pdfIn PDF document text
    • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/162345a18a9a97---gezowunu.pdfIn PDF document text
    • http://mutecnagondolas.com/admin/kcfinder/upload/files/nagakujuwokigabasa.pdfIn PDF document text
    • https://adci.vn/data/upload/file/29263640062.pdfIn PDF document text
    • http://bmcnx.com/userfiles/file/sigesa.pdfIn PDF document text
    • http://artc-polymers.com/upload/images/files/zokoxofediwinova.pdfIn PDF document text
    • https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/28451227e01a29ef9a76d42bee3cbae0/29078645114.pdfIn PDF document text
    • http://findusafranchise.com/files/files/pegaditi.pdfIn PDF document text
    • https://accuratesearch.com/userfiles/file/ninakuliguzikonuv.pdfIn PDF document text
    • https://chaletvenay.skidnapping.com/uploadfiles/files/25055653554.pdfIn PDF document text
    • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/162142473b1e34---10681359757.pdfIn PDF document text
    • https://sieuthimayphat.com/ckfinder/userfiles/files/52530373468.pdfIn PDF document text
    • http://marvdashtonline.ir/userfiles2/file/zimotilofevemunexeso.pdfIn PDF document text
    • http://huarui-bio.com/upload/files/76006017314.pdfIn PDF document text
    • https://mimpiindahsatu.com/contents/files/gezenotidekinigefomuje.pdfIn PDF document text
    • http://indianapit.thriftstorewebsites.net/flash/indianapit.thriftstorewebsites.net/file/64750970726.pdfIn PDF document text
    • https://planet-for-events.de/userfiles/file/90050597849.pdfIn PDF document text
    • https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/1623642a3bd7af---bawodaxenabojigezusow.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_off000680a0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000680a0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000680a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x680A0 10500 bytes
SHA-256: 2a78b69d30e543040cccf870f8f404ce9ea5e2f89d391bcc66b64a1999f72391
font_01_sfnt_off00069873.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69873 18080 bytes
SHA-256: bef52e502d104cf8594283700772e1806d16fec7ae0dd2194afdb851c7f324d5
font_02_sfnt_off0006c75e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C75E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9