Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b015728294e373…

MALICIOUS

PDF

77.4 KB Created: 2022-04-16 08:47:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: fe7d0232552df2f911f2f6c57a712de4 SHA-1: 83d72aaf607a5d8e69ca1a3373070e0024b36e6f SHA-256: a8b015728294e3737553ec7279ae17b41bbaeb64d85a4829b4a874e1684409bf
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://lewaxirilukuxod.weebly.com/uploads/1/3/0/8/130813115/5572262.pdf In PDF document text
    • https://wabelorija.weebly.com/uploads/1/3/4/6/134685543/novofojigoj.pdfIn PDF document text
    • http://www.ih-consultant.com/ckfinder/userfiles/files/98900074977.pdfIn PDF document text
    • https://vowopunav.weebly.com/uploads/1/4/1/4/141401080/6828166.pdfIn PDF document text
    • http://www.jo-hubert.fr/upload/files/buxolegivovatiwobu.pdfIn PDF document text
    • https://bugedosase.weebly.com/uploads/1/3/2/7/132712019/2247477.pdfIn PDF document text
    • https://bodivikofe.weebly.com/uploads/1/3/5/3/135332590/027f5e4cd24b4.pdfIn PDF document text
    • https://litodamun.weebly.com/uploads/1/3/4/7/134710511/gakanewiladoje-ginuxebog.pdfIn PDF document text
    • https://gozuxunadi.weebly.com/uploads/1/3/4/4/134404056/rikidofutuwagib_woloxefawamo_jubag_dajizumuwusalux.pdfIn PDF document text
    • https://fanepolareroroz.weebly.com/uploads/1/3/4/6/134666972/jolasexot-biripotu-vawanexawaru-feweradazux.pdfIn PDF document text
    • https://fusavufotopos.weebly.com/uploads/1/3/4/6/134634064/5505444.pdfIn PDF document text
    • https://mojulikobamod.weebly.com/uploads/1/3/4/4/134488450/0954e84a.pdfIn PDF document text
    • https://kigusokitog.weebly.com/uploads/1/3/5/3/135300221/darikanixika-gujud.pdfIn PDF document text
    • https://saximomedu.weebly.com/uploads/1/3/2/7/132740398/fumofojanelinakotoro.pdfIn PDF document text
    • https://japipimimobuxi.weebly.com/uploads/1/3/1/0/131071183/zomuzolukun_wiritorodum.pdfIn PDF document text
    • http://cs-golfclub.com/ckupload/files/82767081500.pdfIn PDF document text
    • http://pro-elec.ru/ckfinder/userfiles/files/neferusorujotuwaja.pdfIn PDF document text
    • http://ryyw.com/upload/files/2022/02/202202171346087647.pdfIn PDF document text
    • https://wirut.co.za/YmrXLWy8?keyword=hermosas%20criaturas%20libro%20descargar%20pdfPDF 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_off0000c535.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c535.bin)

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c535.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC535 18172 bytes
SHA-256: 4236877765d819aef95b9299862d6a53fc8978d1a475e3e8fbea0f5a0e7bf1d4
font_01_sfnt_off0000f40b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF40B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010c22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C22 11088 bytes
SHA-256: 2e591c843418248cf834860e89ab44264d428847b02fb144319dbbf4546eb1b7

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