Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2ffe2a54fb2cfc1…

MALICIOUS

PDF

74.6 KB Created: 2022-04-16 12:46:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: 0f9c7b28ef80980a9db2e4320429054e SHA-1: 0ceaaf38f1e71d693fe7e59a22c3b26dd7b4cdaa SHA-256: f2ffe2a54fb2cfc16bb4afe283ec89212e511cc930662c655ab3ff1c567e8d23
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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=arterial%20blood%20gas%20analysis PDF link annotation
    • https://lajafovomulu.weebly.com/uploads/1/4/1/3/141396071/doxiseloxa_josegis.pdfIn PDF document text
    • https://kaginugopaz.weebly.com/uploads/1/3/4/3/134310825/zajivitoj.pdfIn PDF document text
    • https://wesotapaxo.weebly.com/uploads/1/3/4/4/134488604/gelikujibumu-fomomes-benop-zekalevabaletu.pdfIn PDF document text
    • http://ji-tien.com/userfiles/file/nejodazilurugaragabubupi.pdfIn PDF document text
    • http://owop.challengersports.com/ckfinder/userfiles/files/77662906776.pdfIn PDF document text
    • http://chinalabware.es/d/files/xulejavopakizumebazajofi.pdfIn PDF document text
    • http://image.dlib.vn/libedu/news/thuvienquangngai/20220319/file/zamugegezibojo.pdfIn PDF document text
    • https://oxfordjsr.com/userfiles/file/timizetafafefozu.pdfIn PDF document text
    • https://somotudodij.weebly.com/uploads/1/3/4/6/134699902/61a0054f2f3a.pdfIn PDF document text
    • https://jozufibajas.weebly.com/uploads/1/3/0/9/130969385/zasag_jumasonos_molipifej_zesuna.pdfIn PDF document text
    • https://kofetasug.weebly.com/uploads/1/3/0/8/130874362/4961401.pdfIn PDF document text
    • https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1624a1741b6c9e---venafogagaparunarubal.pdfIn PDF document text
    • http://savemaxint.com/files/file/rimoxixajosevud.pdfIn PDF document text
    • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/edtr430fcbfuqrrpt3bg386sm7/65839984824.pdfIn PDF document text
    • http://agppi99.pretty-match.com/upload/files/86996733481.pdfIn PDF document text
    • https://alseedawigroup.com/userfiles/files/23834665760.pdfIn PDF document text
    • https://glycocalyx.nl/userfiles/image/file/92951282422.pdfIn PDF document text
    • https://krenzle.sk/editors/ckeditor/plugins/kcfinder/upload/files/xuxivozepep.pdfIn PDF document text
    • http://chayka-svg.ru/files/pidofexese.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_off0000c079.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC079 10660 bytes
SHA-256: 93f8c7cc5761066fe7151c63810bfb782731e7e59c445ccbf9f269c3a7925363
font_01_sfnt_off0000d8c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8C3 16948 bytes
SHA-256: e1a652140321ad4ac17905bdac47c83149a7daa6dcd174aa7e8605bb6758e7eb
font_02_sfnt_off00010500.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10500 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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