Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c8cac15bcfc8457…

MALICIOUS

PDF

77.2 KB Created: 2022-04-21 14:46:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: b12ad11dd3d47ccec651ec6dd37b15d8 SHA-1: 505400b8129ddc0351c1abf5c922066ef9de81b9 SHA-256: 2c8cac15bcfc8457a82a707e74b6bf350cb8ef9f97d3a5c1898e072ff7cc13fd
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://wirut.co.za/YmrXLWy8?keyword=why%20is%20my%20heating%20system%20not%20working PDF link annotation
    • https://xovulibunibitex.weebly.com/uploads/1/4/1/3/141315025/nowinovexag.pdfIn PDF document text
    • https://lefiligirer.weebly.com/uploads/1/3/4/7/134709268/zewaxiraz_saxigukivuz_modubosi.pdfIn PDF document text
    • http://blueyee.com/upload/file/012026263861.pdfIn PDF document text
    • https://sakata-mokuzai.com/db/item/uploads/files/juzitevifafesuwotob.pdfIn PDF document text
    • https://plasy.com/uploads/file/10115102218.pdfIn PDF document text
    • http://midoriku.zaitakunet.jp/app/webroot/upload_images/files/43830388052.pdfIn PDF document text
    • https://3territoires.kopro.fr/userfiles/file/92906296234.pdfIn PDF document text
    • https://mujekakuvegaxum.weebly.com/uploads/1/3/2/3/132303245/c5582.pdfIn PDF document text
    • http://amphorabeautyclub.com/campannas/file/47206929019.pdfIn PDF document text
    • https://susuwiwonilo.weebly.com/uploads/1/3/1/6/131606006/2ceffff01.pdfIn PDF document text
    • https://jamofidomub.weebly.com/uploads/1/3/1/3/131398059/6e1f845c3d89885.pdfIn PDF document text
    • https://nosekaboza.weebly.com/uploads/1/3/4/6/134656803/daxin.pdfIn PDF document text
    • http://aotmoo.com/uploadfile/files/20220211_121950.pdfIn PDF document text
    • http://ck-kutnahora.cz/gais/image/file/80748250263.pdfIn PDF document text
    • https://zipemulobob.weebly.com/uploads/1/3/4/5/134528333/mobaworidifer-dizapopivis-dekolikojedas-nurigulijaxexu.pdfIn PDF document text
    • https://rogenogenitel.weebly.com/uploads/1/3/4/3/134316557/fonafepatudeg-burel-vaxenivawag-mupitugaruxuja.pdfIn PDF document text
    • http://groupelamiri.com/uploads/FCK_files/file/vunogufame.pdfIn PDF document text
    • http://gsglamping.com/userfiles/file/20220209214626.pdfIn PDF document text
    • http://skupka54.ru/upload/m/bovutudojotuluberufe.pdfIn PDF document text
    • https://luminex.pl/upload/file/xomalaligelitesad.pdfIn PDF document text
    • http://biosite.ru/images/news/file/derixan.pdfIn PDF document text
    • http://banghetretunhien.com/media/ftp/file/zojidaratoviwuwane.pdfIn PDF document text
    • https://werafapotavide.weebly.com/uploads/1/3/0/9/130969473/toxed.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_off0000cb56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB56 16332 bytes
SHA-256: 7c210766bb99cb5e79d61615b87d19d597dc37e252611855cb9d49ef8d55b54e
font_01_sfnt_off0000f5ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5AD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010dc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DC4 10792 bytes
SHA-256: 2d332a6b0ab92fc85421fe76f6970be992398f3f05c59fea760ce2e635631142