Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb8613b8808fa17b…

MALICIOUS

PDF

418.8 KB Created: 2022-05-09 19:13:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-26
MD5: 3f58a47356f76b64eace58d1f26e9b39 SHA-1: d0cecbd9a365070318247b560af8ebeaa76deb22 SHA-256: cb8613b8808fa17b63c6d9ac3c22924d90a29c27ee3dd468e9e42b2fdb426768
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3405

Heuristics 5

  • 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.
  • 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://yoyep.co.za/XSRYdR1H?utm_term=ielts+speaking+topics+with+answers+pdf+books+pdf+file PDF link annotation
    • https://detitominaxa.weebly.com/uploads/1/3/5/3/135304018/8594aa677471f.pdfIn PDF document text
    • https://jawutasujo.weebly.com/uploads/1/3/0/9/130969833/jurizeroborazor.pdfIn PDF document text
    • https://igmof.com/admin/js/kcfinder/upload/web_file_ig_1/files/79934889343.pdfIn PDF document text
    • https://canionglobal.com/FCKeditor/file/4790196564.pdfIn PDF document text
    • https://renojagefidufu.weebly.com/uploads/1/4/1/4/141433141/wekapusoxiw_zedojevekamegib_letezeweginabe.pdfIn PDF document text
    • https://sogilunorigu.weebly.com/uploads/1/3/4/8/134888101/6845460.pdfIn PDF document text
    • https://vida.posilatko.cz/files/wswg/file/10585444957.pdfIn PDF document text
    • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/161ffd6e28a491---63592012207.pdfIn PDF document text
    • https://faloluro.weebly.com/uploads/1/4/1/3/141367022/kepomenizox.pdfIn PDF document text
    • https://horacebatten.com/ckfinder/userfiles/files/vepikudivigo.pdfIn PDF document text
    • http://kleinschadenexpert.de/userfiles/file/mevumomuvikovinatejogi.pdfIn PDF document text
    • http://www.impactit.in/ckfinder/userfiles/files/bilon.pdfIn PDF document text
    • https://tupavogonet.weebly.com/uploads/1/4/1/5/141534535/7842e7028.pdfIn PDF document text
    • http://conhantaoankhanh.com/webroot/img/files/20854240606.pdfIn PDF document text
    • https://temporar.mirceaseminee.ro/printuri-fi/files/90392403296.pdfIn PDF document text
    • http://gps-ambroisie.com/ressource/site-image/files/situpapevexatupefudu.pdfIn PDF document text
    • http://sintniklaas.kinderopvangpimpeloentje.be/ckfinder/userfiles/files/xovatoralisiz.pdfIn PDF document text
    • http://www.podunajsko.sk/app/webroot/ckeditor/kcfinder/upload/files/71515429925.pdfIn PDF document text
    • http://galenbio.com/images/upload/file/mizeriganan.pdfIn PDF document text
    • http://teraval.cz/res/file/19381217422.pdfIn PDF document text
    • https://zavewixesareput.weebly.com/uploads/1/3/4/8/134855174/7980648.pdfIn PDF document text
    • https://tedesco.pl/userfiles/file/27489711238.pdfIn PDF document text
    • https://sinevojixataxer.weebly.com/uploads/1/3/4/1/134131740/5555965.pdfIn PDF document text
    • https://bibuzutevokad.weebly.com/uploads/1/3/4/6/134634257/7053394.pdfIn PDF document text
    • https://nodemudikukurev.weebly.com/uploads/1/3/5/3/135348567/2392212.pdfIn PDF document text
    • https://namonivet.weebly.com/uploads/1/3/4/4/134493383/pupifavawafebeniv.pdfIn PDF document text
    • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16201b2474af38---sokulizinore.pdfIn PDF document text
    • http://neodermclinic.com/file_media/file_image/file/werilepoduwozawatuwediw.pdfIn PDF document text
    • http://www.dilipprabhavalkar.com/images/file/tenejasogepipenox.pdfIn PDF document text
    • http://styrexon.cz/userfiles/file/26746129093.pdfIn PDF document text
    • http://polethique.ch/uploads/files/sikofamix.pdfIn PDF document text
    • https://rheinfurth.de/userfiles/file/58227110007.pdfIn PDF document text
    • https://tixovokibena.weebly.com/uploads/1/3/4/1/134109053/maposo-dulurawataxe.pdfIn PDF document text
    • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/16203ab62b3779---lasosamegokizafuzubu.pdfIn PDF document text
    • https://gupobotinifetex.weebly.com/uploads/1/3/4/3/134338345/aeac33c.pdfIn PDF document text
    • http://gurmanosypsnys.lt/userfiles/file/neninenawaduwizon.pdfIn PDF document text
    • https://naxonefewu.weebly.com/uploads/1/3/5/9/135961026/dowutobuzison.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_off0005faf0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005faf0.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005faf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FAF0 18688 bytes
SHA-256: d8feee2b285aa076f220c51fbc607d35ccd54572a360091878bc72d367056203
font_01_sfnt_off00062b4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B4B 18292 bytes
SHA-256: 3c819fb803174fcad7bfb706e068279ffda63a200250fd36233d09c8de820bc0
font_02_sfnt_off00064852.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64852 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off0006606b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6606B 11168 bytes
SHA-256: a440718012c8be96eef3aaac5b198087bba1c53b28eba2e59412def0ce6ba5c4