Malicious PDF — malware analysis report

Static analysis result for SHA-256 4251b3ffdb8273be…

MALICIOUS

PDF

387.2 KB Created: 2022-02-08 08:00:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: af1a502b536a039ccdff1cb3d89594e4 SHA-1: 5faebc1bc8e8e0173be2b4e648b83dd41aa2d97f SHA-256: 4251b3ffdb8273bed610805efd1f2ef56da0aeb26d9693dc2a9a0166df7b53ba
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6448

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://lazav.co.za/XSRYdR1H?utm_term=axial+scx10+ii+jeep+wrangler+manual PDF link annotation
    • http://sntaviator.ru/ckfinder/userfiles/files/ginisixaketekugiweraw.pdfIn PDF document text
    • http://tylincms.com/userfiles/files/85062602825.pdfIn PDF document text
    • http://csc025.com/userfiles/file/20211029033205_hvcch1.pdfIn PDF document text
    • http://gidaero.com/upload/fckeditor/file/46539295468.pdfIn PDF document text
    • http://redondoclassicburger.com/uploads/files/rosorolanipilutome.pdfIn PDF document text
    • http://tv-sat.cz/userfiles/file/ganasu.pdfIn PDF document text
    • https://cvzona.lt/resources/img/files/25875447438.pdfIn PDF document text
    • http://aitrans.org/UploadFile/file/F1202107031942186763.pdfIn PDF document text
    • http://watch62.ru/files/files/32953952932.pdfIn PDF document text
    • http://ei-windykacja.pl/upload/file/75553398901.pdfIn PDF document text
    • http://villkasz.hu/editor_up/81941924287.pdfIn PDF document text
    • http://hitmet.slektenkaas.com/bilder/file/55051690855.pdfIn PDF document text
    • http://leylasuren.com/images/userfiles/imagefile/20798297587.pdfIn PDF document text
    • http://dubiliergarten.de/uploads/files/jufiragokodamelix.pdfIn PDF document text
    • https://mtmnetwork.net/uploadEditor/files/rufidepevokorotitejudoje.pdfIn PDF document text
    • https://playindiano1.in/ckfinder/userfiles/files/xovew.pdfIn PDF document text
    • https://cbad.org.bd/assets/ckeditor/kcfinder/upload/files/71475513050.pdfIn PDF document text
    • http://www.proektes.ru/kcfinder/upload/files/1943932663.pdfIn PDF document text
    • http://www.sfainternational.pk/assets/ckeditor/kcfinder/upload/files/mojalesapofak.pdfIn PDF document text
    • https://kanat.com/upload/ckfinder/files/dosovifukufap.pdfIn PDF document text
    • https://www.amazoniaon.com.br/assets/js/ckeditor/kcfinder/upload/files/topugotusanonasuxomirabi.pdfIn PDF document text
    • http://lussoleathertiles.com/test4/EDITOR/example/v2/userfiles/file/wejeraju.pdfIn PDF document text
    • http://dotbamboo.com/file_media/file_image/file/xasakugirojifunitaxexun.pdfIn PDF document text
    • https://euforbiabulgaria.com/uploads/pages/files/598682186.pdfIn PDF document text
    • https://greassi.com/editor_upload/file/55042373942.pdfIn PDF document text
    • http://spielundlicht.de/content_provider/documents/files/46463492105.pdfIn PDF document text
    • https://navliecky.net/userfiles/file/26631579071.pdfIn PDF document text
    • https://indicaperu.com/userfiles/file/xufugomevigul.pdfIn PDF document text
    • http://xn--939a66v0zjo3bcvdmrp.com/data/ckfinder/files/karijapomazore.pdfIn PDF document text
    • https://amthanhanhsangchinhhang.vn/upload/files/daguvo.pdfIn PDF document text
    • http://autodilykanka.cz/cmsimple/images/file/19208354087.pdfIn PDF document text
    • http://recit-de-vie.fr/userfiles/file/55198380206.pdfIn PDF document text
    • https://argentinaproduct.com/ckfinder/userfiles/files/didifexanisa.pdfIn PDF document text
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/d5fe4c93ed7af3061b886565e7000d90/zojolijubefefeximixosav.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_off00059dfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59DFD 17396 bytes
SHA-256: 9c1142d29567d36e622f694f91d4c615f7deaff5a26e950dadea075feb0e3688
font_01_sfnt_off0005cbc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CBC4 11072 bytes
SHA-256: 54813f7b79b1f06b19979f38726fb9f750c0897b0e975ba5ba59861e6d140719
font_02_sfnt_off0005e5a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E5A4 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9