Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9cc662e812300b3…

MALICIOUS

PDF

88.1 KB Created: 2022-04-09 17:48:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-27
MD5: b043a62fb619dac52270bdf7b057bee7 SHA-1: a0a3f4d2d5f0c5f3128d402928efa4a6c999e52a SHA-256: a9cc662e812300b391977bead335bb2135de88fa7e31cd2ab5b8e7af53d2f776
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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 http://status.cz/UserFiles/File/66535871617.pdf In PDF document text
    • https://teraimpex.ro/up-images/file/64082357178.pdfIn PDF document text
    • https://www.liad-alger.fr/admin/style/js/edit/kcfinder/..%5Cimages%5Ccontenue/files/99487159093.pdfIn PDF document text
    • https://neksav.com/upload/ckfinder/files/249561879.pdfIn PDF document text
    • http://cmsdoc.blum-group.de/data/cmsdoc/userfiles/file/95257268264.pdfIn PDF document text
    • https://chsins.tw/uploads/files/202203200623348411.pdfIn PDF document text
    • https://terminal.hr/userfiles/file/furano.pdfIn PDF document text
    • http://concienciafiscal.com/kcfinder/upload/files/nerenazatewotu.pdfIn PDF document text
    • http://mixline.ru/img/lib/file/95756168236.pdfIn PDF document text
    • https://euronet.stonavka.cz/webpagebuilder/ckfinder/userfiles/files/43123476497.pdfIn PDF document text
    • https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/6h8lt1cbt1fkna0s3ks78qn1ro/vefojolaluvogubowa.pdfIn PDF document text
    • http://ecogestval.es/userfiles/file/68160396592.pdfIn PDF document text
    • http://kawarulabo.com/app/webroot/js/kcfinder/upload/files/norekosi.pdfIn PDF document text
    • http://weiken-rc.com/upload/files/87321619584.pdfIn PDF document text
    • http://kientrucmoi.com.vn/admin/kcfinder/upload/files/39554915397.pdfIn PDF document text
    • https://hkfew.org.hk/ckfinder/userfiles/files/fukigiralivukivitaruj.pdfIn PDF document text
    • http://povprojekt.cz/upload/files/32735259428.pdfIn PDF document text
    • http://immobiliareborghi.com/userfiles/files/44504778948.pdfIn PDF document text
    • http://bzws.zhanyougame.com/ckfinder/userfiles/files/95507609713.pdfIn PDF document text
    • http://mrspk.com/ckfinder/userfiles/files/38155474454.pdfIn PDF document text
    • http://profuturis.be/kcfinder/upload/files/vuwozaxugenubuj.pdfIn PDF document text
    • http://aescantabria.es/upload/fckeditor/file///wiwiwuk.pdfIn PDF document text
    • http://lovesenergy.com/file/48929901492.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623c32249533e---58327309490.pdfIn PDF document text
    • https://ragaz.co.za/YmrXLWy8?keyword=hp%20photosmart%20c4580%20wireless%20setup%20without%20cdPDF link annotation
    • 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_off0000eef4.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000eef4.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eef4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEF4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001070b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1070B 11396 bytes
SHA-256: e1bc649c08026893f88ddc07e20027539b63201cb9496407bfa534bafb58ba15
font_02_sfnt_off00012204.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12204 17816 bytes
SHA-256: 3d82be29dd9b1c414ec15ed3147e8ceb68d8f4ebd2c9da26b16978e58f294c34