Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa87cbab40485117…

MALICIOUS

PDF

95.8 KB Created: 2022-04-05 06:54:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-07
MD5: f8b243d1b49935b5cfd21bba1fc7f025 SHA-1: c350bf867a1510c8bcc4d94e4300df2f4479d7b5 SHA-256: aa87cbab40485117b28a0129e7212ec42b4963fd9b605efcb924fe7169dbbdfa
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://sunuf.co.za/YmrXLWy8?keyword=concepto%20de%20investigaci%C3%B3n%20cualitativa%20desde%20distintos%20autores PDF link annotation
    • https://tiwotutekog.weebly.com/uploads/1/3/4/7/134722077/voxobosaluma.pdfIn PDF document text
    • https://fullhousetourism.com/UploadFiles/file/20220211215444123.pdfIn PDF document text
    • http://vagon.biz/files/file/vexixerorenurokoxipatefuj.pdfIn PDF document text
    • http://materialdeestudo.top/userfiles/files/pafovusuwowagunuvuwikevuv.pdfIn PDF document text
    • http://yongqingtech.com/d/files/65516049703.pdfIn PDF document text
    • http://bakoca.hu/files/file/37842762860.pdfIn PDF document text
    • https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/c0ba46b7063d311fefce4340ced02890/kilebiritutogeni.pdfIn PDF document text
    • https://yuanyoujie.vip/userfiles/file/gofumaxa.pdfIn PDF document text
    • https://gunitawuxinunew.weebly.com/uploads/1/3/4/7/134713868/9354853.pdfIn PDF document text
    • http://h-p-n.fr/catalogue_dynamique/file/winodolojasaturesinulim.pdfIn PDF document text
    • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16222b8d3a9061---xabixunidogewajesijaj.pdfIn PDF document text
    • https://gegadibiliwo.weebly.com/uploads/1/3/1/8/131871883/9602459.pdfIn PDF document text
    • http://aostavet.it/userfiles/files/gifuf.pdfIn PDF document text
    • http://lafedja.cz/public/file/33591799210.pdfIn PDF document text
    • http://nislamengineering-ltd.com/assets/ckeditor/kcfinder/upload/files/nexez.pdfIn PDF document text
    • http://mssyh.com/upload/images/file/20220225202358.pdfIn PDF document text
    • http://netcentricnj.com/ckfinder/userfiles/files/wexas.pdfIn PDF document text
    • https://fatofexar.weebly.com/uploads/1/3/4/6/134687548/tefepadegapadanomopi.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_off00010f64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F64 11024 bytes
SHA-256: 2e13d43b831b05d7ef4b69d30e6e42914bc677e5ad319e0e8c24b3528941fab6
font_01_sfnt_off000128bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128BD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000140cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x140CF 18068 bytes
SHA-256: 4287ad61f1eea2496da94464941eb948ccf7b8871525ce85daa02bfff68e3d7c

Open this report in the interactive analyzer, or submit your own file for analysis.