Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af3c69a908f0c76…

MALICIOUS

PDF

76.6 KB Created: 2021-10-15 00:59:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 3e4e1fb1784d1353d00142e72f857c97 SHA-1: a525fa2e6bc434be3df57e20fa8ac8cc982da1aa SHA-256: 4af3c69a908f0c7650366c7b1f61a708624c9965f64c727846920a51cee2155a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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://corpeverest.com/ckfinder/userfiles/files/roroxezebisaw.pdf In PDF document text
    • http://nacyc.jp/Upload/file/42949945342.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/0j16nrl7sqs45560317kee0513/82822276596.pdfIn PDF document text
    • http://fukaofoods.tw/uploads/files/202109120227502744.pdfIn PDF document text
    • http://www.farmaciapenil.es/userfiles/files/42236863498.pdfIn PDF document text
    • https://www.hippocratio.gr/ckfinder/userfiles/files/37618005671.pdfIn PDF document text
    • https://burgaseguros.com/userfiles/file/50372059322.pdfIn PDF document text
    • http://amphorabeautyclub.com/campannas/file/75944688313.pdfIn PDF document text
    • http://poltinka.ru/userfiles/file/livakevokomoninisuledupix.pdfIn PDF document text
    • http://mastervin.ru/files/file/fetofagojejiri.pdfIn PDF document text
    • http://mynigaoe.com/upload/file/20210918193449.pdfIn PDF document text
    • https://mimpisiluman.com/contents/files/7313265284.pdfIn PDF document text
    • http://ehoron21.mn/uploads/files/gedum.pdfIn PDF document text
    • http://sztarmedia.hu/_user/file/83439109409.pdfIn PDF document text
    • http://soepcentrale-dekeyser.be/userfiles/file/kujesusofem.pdfIn PDF document text
    • http://storemisr.com/uploads/files/giwesolepupujuxosubapag.pdfIn PDF document text
    • https://hoangphatdanang.xetnghiemadndanang.com/uploads/image/files/laberazop.pdfIn PDF document text
    • http://supair-lux.hu/ckfinder/userfiles/files/75155549705.pdfIn PDF document text
    • http://inarchengineering.it/userfiles/files/35107040825.pdfIn PDF document text
    • http://amphorabeautyclub.com/campannas/file/botegelukovi.pdfIn PDF document text
    • http://streetnn.ru/data/upload/ck/files/zefamafiminevowibek.pdfIn PDF document text
    • http://kccmaul.com/files/files/wemuma.pdfIn PDF document text
    • http://packturf.fr/files/kasawexuz.pdfIn PDF document text
    • http://www.kickcommerce.com/userfiles/file/84779131425.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/u-9XGpgKpwY/uplcv?utm_term=sedra+6th+edition+solutionsPDF 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 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_off0000c52c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC52C 10688 bytes
SHA-256: 516b00ec207a33e9d8051782aaf288c912cf38420c516feb1d2932fc68a6f03a
font_01_sfnt_off0000dd9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD9A 17992 bytes
SHA-256: be3a1dc322ef0f5aa93ee611cba9ec43cefbf5b78796339ff6e71ede58d6f904
font_02_sfnt_off00010ce7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CE7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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