Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff25a28443d5769b…

MALICIOUS

PDF

69.6 KB Created: 2022-03-30 23:45:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-13
MD5: 439ba1a833684f677ad6e2b9180806f5 SHA-1: ac02c7d9201542bf060a248ac9ea8d2bbe1f72d5 SHA-256: ff25a28443d5769be1c9f26da8cc4bbe6b93ba048ea498d37fdd3fae7d991802
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://podar.co.za/YmrXLWy8?keyword=how%20to%20add%20expressions%20with%20radicals%20and%20rational%20exponents PDF link annotation
    • https://sitegevom.weebly.com/uploads/1/3/4/6/134664280/2017256.pdfIn PDF document text
    • https://gatokoliza.weebly.com/uploads/1/3/0/7/130739470/572c7a962c9.pdfIn PDF document text
    • http://mot-a-mot.fr/kcfinder/upload/files/kaxadoba.pdfIn PDF document text
    • http://ahdjcm.com/upload/files/vowobafufezo.pdfIn PDF document text
    • http://gmcf.aboutgiving.net/sites/default/files/editor/file/12356855081.pdfIn PDF document text
    • https://pemanawawe.weebly.com/uploads/1/3/5/3/135320082/4853040.pdfIn PDF document text
    • https://atlaskvartir.ua/data/uploads/files/nujufokifubefivorawitudal.pdfIn PDF document text
    • http://buyo-g.net/userfiles/file/mixeruzaludugaduwis.pdfIn PDF document text
    • http://tjtvina.com/Upload/files/rafojegatiw.pdfIn PDF document text
    • https://nikulagoronol.weebly.com/uploads/1/3/2/3/132303117/4497670.pdfIn PDF document text
    • https://gedaxafi.weebly.com/uploads/1/3/4/3/134340736/zozoxunejojomexi.pdfIn PDF document text
    • https://wazaxilam.weebly.com/uploads/1/3/4/7/134726650/6b4de46d.pdfIn PDF document text
    • https://wexajetixi.weebly.com/uploads/1/4/1/2/141261157/lobasobuxaje.pdfIn PDF document text
    • https://swaminarayangm.org/userfiles/file/39481728282.pdfIn PDF document text
    • https://xapabareduvan.weebly.com/uploads/1/3/4/3/134395213/fozasunosi.pdfIn PDF document text
    • https://lisijinawap.weebly.com/uploads/1/3/4/7/134740049/jejolunajaropotodemi.pdfIn PDF document text
    • https://rebanurox.weebly.com/uploads/1/3/4/4/134490941/d2cc13ad33.pdfIn PDF document text
    • https://dalibigexewekef.weebly.com/uploads/1/3/2/7/132712129/biwowafolore.pdfIn PDF document text
    • http://www.bordadoindustrial.com/ckfinder/userfiles/files/vojawivigufipavi.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 extracted file (font_00_sfnt_off0000abb4.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000abb4.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_off0000abb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABB4 17220 bytes
SHA-256: acaeb6cceb4c56ddecaf0d5fc3d6ad08047d03664f4ccb1d11982234078fcafa
font_01_sfnt_off0000d94b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD94B 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0000efef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFEF 10792 bytes
SHA-256: c7b723439e64ad9da3f6e7587f276774ece40db85d7353cf8e3e035cb2c307fe

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