Malicious PDF — malware analysis report

Static analysis result for SHA-256 de4c36ce93bcca33…

MALICIOUS

PDF

74.3 KB Created: 2022-05-12 14:37:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-03
MD5: 1dcfcfc4f6dc6e97f18e6de513cd5911 SHA-1: 73a25c011678b0c9c4b59063830150a70215c23f SHA-256: de4c36ce93bcca330801f1d786b7750daff900e73dcfb2b10aefc6065e14814b
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 http://samvalentim.pt/assets/kcfinder/upload/files/57591393128.pdf In PDF document text
    • https://kanoritixuvu.weebly.com/uploads/1/3/4/8/134874131/jedovepavawexodomev.pdfIn PDF document text
    • https://kobuzonoge.weebly.com/uploads/1/3/1/4/131452837/lipatadoxapuk.pdfIn PDF document text
    • https://luwupedo.weebly.com/uploads/1/3/1/3/131383743/90cb9489.pdfIn PDF document text
    • https://mogimefiledewe.weebly.com/uploads/1/3/1/8/131857364/c6917e864b4b25.pdfIn PDF document text
    • https://coevent.ru/upload/files/59578553413.pdfIn PDF document text
    • http://mustafaulusoy.com/dosyalar/File/3819808303.pdfIn PDF document text
    • https://rovenefewapug.weebly.com/uploads/1/3/0/7/130775308/tapabake.pdfIn PDF document text
    • https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/cc4215d1c912e1a9c0473e401619456d/sozifarogovige.pdfIn PDF document text
    • https://soregoba.weebly.com/uploads/1/3/0/7/130739918/5762005.pdfIn PDF document text
    • http://bytip.net/filespath/files/20220222171503.pdfIn PDF document text
    • https://tumizoma.weebly.com/uploads/1/3/2/8/132814974/sobuduxavoga_pubawegotuwag_gerutozoge.pdfIn PDF document text
    • https://tidevaxapoled.weebly.com/uploads/1/3/5/9/135971763/1187692.pdfIn PDF document text
    • https://besuweleterum.weebly.com/uploads/1/3/2/8/132814030/8ce61f54812.pdfIn PDF document text
    • https://tunibedexorole.weebly.com/uploads/1/3/5/3/135350281/1bb58061ebe.pdfIn PDF document text
    • https://daxefumusadaja.weebly.com/uploads/1/3/4/7/134763928/55b3e8c81c.pdfIn PDF document text
    • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16227cee388cdb---86628177521.pdfIn PDF document text
    • https://ragaz.co.za/YmrXLWy8?keyword=dancing%20queen%20piano%20solo%20sheet%20music%20sheet%20music%20online%20pianoPDF 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_off0000bd28.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000bd28.bin)

Related samples 2

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_off0000bd28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD28 17060 bytes
SHA-256: d87db21bf7f8bac08d05fc4e4e29abd4492b59ebd0d00c62ba129de9ba17012a
font_01_sfnt_off0000e9f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9F9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010210.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10210 10968 bytes
SHA-256: c59911dd3ed2b31712e5f24c0e06ef05be213e0152ce0e62f76935dcd7411824

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