Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa800c51977e4bd1…

MALICIOUS

PDF

79.6 KB Created: 2022-04-23 18:33:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 0f26bb525c23c43414b0b60ff139f4f7 SHA-1: 668104429e24c54a9a69463cd50895195f8f52f7 SHA-256: aa800c51977e4bd1d719c852bc497d286eaaffd9c31bac6385a2c327728807c9
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://sunuf.co.za/YmrXLWy8?keyword=como%20crear%20un%20archivo%20pdf%20en%20el%20celular PDF link annotation
    • https://witatike.weebly.com/uploads/1/3/2/3/132302928/vigupobubak.pdfIn PDF document text
    • http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fe52713dee4---21684453603.pdfIn PDF document text
    • http://satexvernaz.fr/kcfinder/upload/files/rutulogerexonaf.pdfIn PDF document text
    • http://studio-rivetti.it/userfiles/files/rolugijimelol.pdfIn PDF document text
    • http://tatishev.ru/admin/ckfinder/userfiles/files/ledipexuxanekekaguje.pdfIn PDF document text
    • http://design-klasse.de/ckfinder/userfiles/files/jojipalusu.pdfIn PDF document text
    • http://shijijiaming.net/filespath/files/20220321230205.pdfIn PDF document text
    • http://gibisch.info/files/files/gevowizusegagugaxu.pdfIn PDF document text
    • https://zutiwemozebej.weebly.com/uploads/1/3/2/7/132712207/sazobazegikonegesuki.pdfIn PDF document text
    • https://kiwepuzimogavuf.weebly.com/uploads/1/3/0/7/130776877/najuxenil-zibukosetirobu.pdfIn PDF document text
    • https://wildpflanzen-planung.de/file/97266786314.pdfIn PDF document text
    • https://www.algeos.com/js/ckfinder/userfiles/files/rekopulilupugur.pdfIn PDF document text
    • https://nizosanaradeke.weebly.com/uploads/1/3/4/8/134856136/688103.pdfIn PDF document text
    • http://www.facyt.com.ar/ckfinder/userfiles/files/wabelefamefufawa.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 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_off0000cec8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEC8 10816 bytes
SHA-256: 12073233a59e0a146cc97faac21b8ebc1000bed62fe5fa490f02bbc930b1adc5
font_01_sfnt_off0000e775.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE775 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000ff87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF87 18816 bytes
SHA-256: 8c66dbc4ad59365fb0147f16fd0ecc03ae0aab5094306db9a9878210aa80076b