Malicious PDF — malware analysis report

Static analysis result for SHA-256 6574397b88c0e673…

MALICIOUS

PDF

107.6 KB Created: 2021-12-14 06:14:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-08
MD5: b5064312d6ff9a9d9d78e1f07b965f90 SHA-1: 1f2bb8bc5ad37509401d11fd74b2364491bc8991 SHA-256: 6574397b88c0e6731ccef2b188526ab871e4eec15e4dfe02da9235874232664e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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://exlite.it/ckfinder/userfiles/files/87662200339.pdf In PDF document text
    • http://boldogelet.hu/media/49775578122.pdfIn PDF document text
    • https://iwistw.com/upload/files/magelijuxifil.pdfIn PDF document text
    • http://alde-pace.org/ckfinder/userfiles/files/63566090849.pdfIn PDF document text
    • http://tgroupsrl.com/userfiles/files/vuzevosexiwexi.pdfIn PDF document text
    • http://budapesticukraszdak.hu/userfiles/files/36025840206.pdfIn PDF document text
    • http://anhhieu.vn/hinhanh/file/59415414653.pdfIn PDF document text
    • http://interroadholland.nl/userfiles/file/betasixepovavewadaso.pdfIn PDF document text
    • http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/16199d42c8b98e---pigotebepakugew.pdfIn PDF document text
    • http://yucehukuk.com/resimler/files/nazonerufupisiw.pdfIn PDF document text
    • https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/16161da27e57fd---jeluzu.pdfIn PDF document text
    • https://www.khaosanpools.org/ckfinder/userfiles/files/81410620345.pdfIn PDF document text
    • http://aiaato.com/FileData/ckfinder/files/20211027_47BD5B485C6200F3.pdfIn PDF document text
    • http://c2r.su/uploadfiles/file/2021120202321173499.pdfIn PDF document text
    • http://namuvaldymas.lt/userfiles/file/lezupezezunalafoloko.pdfIn PDF document text
    • http://nanobubblevietnam.com/uploads/userfiles/file/guwomazorira.pdfIn PDF document text
    • https://sudahhabis.com/contents/files/fosajipuworiz.pdfIn PDF document text
    • http://srtprogetti.eu/userfiles/files/25309332359.pdfIn PDF document text
    • https://pilot-nav.com/ckfinder/userfiles/files/rezuvarajinomefelugixaga.pdfIn PDF document text
    • http://355353.ru/userfiles/file/11112810895.pdfIn PDF document text
    • https://futurefacesnyc.com/uploads/file/niruf.pdfIn PDF document text
    • https://campfun.myhost888.com/upload/ckeditor/files/piwonelerovarakamoligede.pdfIn PDF document text
    • http://bajajsports.com/userfiles/file/20708880870.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/2I9n2o-U8HI/uplcv?utm_term=under+the+dome+book+seriesPDF 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_off00013c45.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00013c45.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013c45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13C45 10544 bytes
SHA-256: a51d356eea458002c971fc2ea76889560c2fc5c40bb56c986c98c0ab1f4c1eee
font_01_sfnt_off0001540a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1540A 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00016aa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16AA9 20460 bytes
SHA-256: d5d77624165a4fd62f90185a1bf5599cc92b0d7bf404517a11ca587b56ed1ba7