Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d83aaefc0df383d…

MALICIOUS

PDF

261.4 KB Created: 2022-02-09 01:04:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 956c795ed888d7da56b61794c12b44ec SHA-1: 556935bdf7a4567d7196d135ef124ad874dfc782 SHA-256: 5d83aaefc0df383d1f42f42b143123ee4a31fefcc20fc9816a7fc85409604c28
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8733

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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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://yubit.co.za/XSRYdR1H?utm_term=area+of+compound+shapes+worksheet+tes+gcse PDF link annotation
    • http://secretinvitation.net/images/files/55418570517.pdfIn PDF document text
    • http://igabana.com/upfolder/e/files/20210810092205.pdfIn PDF document text
    • http://dungcubepgiangtrinh.com/webroot/img/files/83772905447.pdfIn PDF document text
    • http://izeninfo.net/admin/upload/files/niseliwoxalevivosijegelom.pdfIn PDF document text
    • http://myphamso1.net/uploads/files/12349726216.pdfIn PDF document text
    • https://cakenflowersonline.com/userfiles/file/nobusidexawoga.pdfIn PDF document text
    • https://lensprovn.com/ckfinder/userfiles/files/80455803242.pdfIn PDF document text
    • https://giriconsultancy.com/content_files/files/sijurafu.pdfIn PDF document text
    • http://phutungotodungha.com/img/files/ramedoruforapogifujufabis.pdfIn PDF document text
    • http://cioccolatogallucci.it/userfiles/file/wawekuwan.pdfIn PDF document text
    • https://tekdalyapi.com/upload/ckfinder/files/voximakokanoxuratani.pdfIn PDF document text
    • http://clinical-pain.com/pds/userfiles/files/5124248344.pdfIn PDF document text
    • http://traktorpulling.de/ablage/userfiles/files/62366264821.pdfIn PDF document text
    • http://uni-soar.com/userfiles/file/64563272249.pdfIn PDF document text
    • https://gcs.kz/data/content/file/50198566024.pdfIn PDF document text
    • http://sieuthibongda.net/ckfinder/userfiles/files/kikumuxen.pdfIn PDF document text
    • https://aakritidigitals.com/userfiles/files/55264746370.pdfIn PDF document text
    • http://apexnepaltravel.com/userfiles/file/51995820818.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_off0003a0fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A0FC 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003b817.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B817 19488 bytes
SHA-256: 6a9d3df6d48f4f27081c823f63a59d9e3815a2633140ec9abb93444d6855ad2d
font_02_sfnt_off0003eb70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3EB70 11188 bytes
SHA-256: ef9fc77b8d008f87bd0b48ced2911ddfae73e1033cfba94f4440b9834547d969