Malicious PDF — malware analysis report

Static analysis result for SHA-256 425ac2fdc81b50dc…

MALICIOUS

PDF

79.7 KB Created: 2022-04-23 13:44:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 7f059fe1cb45052459407e2c8e0477fe SHA-1: d65693d39706c286d1aad18a0ff3e939c92ccdbd SHA-256: 425ac2fdc81b50dc343f30532bf16a8dede0ee42459d0570038e06dee1b63bab
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://sunuf.co.za/YmrXLWy8?keyword=cuantas%20tazas%20son%20200%20gramos%20de%20azucar%20glass PDF link annotation
    • https://zivazumuwekaf.weebly.com/uploads/1/3/2/6/132695746/2209096.pdfIn PDF document text
    • http://webhoctot.com/app/webroot/uploads/files/roroneladatafura.pdfIn PDF document text
    • https://vozufoge.weebly.com/uploads/1/3/5/3/135346805/82aa4.pdfIn PDF document text
    • https://xoredanixeg.weebly.com/uploads/1/3/0/8/130814516/katewujenezoteluser.pdfIn PDF document text
    • https://valenciamaids.com/userfiles/files/52592015691.pdfIn PDF document text
    • https://dalosetog.weebly.com/uploads/1/3/1/4/131412235/totoser.pdfIn PDF document text
    • https://pijafajabivigin.weebly.com/uploads/1/3/4/6/134635516/171912c.pdfIn PDF document text
    • http://studiomanzetti.it/userfiles/files/33463778613.pdfIn PDF document text
    • https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/ddd2022fdecd12d57eb39747615ca878/wonebafakosesosikuzup.pdfIn PDF document text
    • http://alpha-th.com/userfiles/file/vudakavawemegijowovimasi.pdfIn PDF document text
    • https://gunujudota.weebly.com/uploads/1/3/2/3/132303168/88211.pdfIn PDF document text
    • https://gitarufimoka.weebly.com/uploads/1/3/4/2/134235546/854638.pdfIn PDF document text
    • https://duvigenusidila.weebly.com/uploads/1/3/4/7/134736387/f8b4c3d2839.pdfIn PDF document text
    • https://marlin-aquarium.ru/ckfinder/userfiles/files/7625765476.pdfIn PDF document text
    • https://memabalizova.weebly.com/uploads/1/3/4/4/134490842/kulanenodebugivuf.pdfIn PDF document text
    • http://image.dlib.vn/libedu/news/bvu/20220203/file/sodipowekuzugavurikoj.pdfIn PDF document text
    • https://longhungphat.org/Images_upload/files/nuzumenojekigumonojuw.pdfIn PDF document text
    • http://lingeriedediva.com/UploadFile/file/2022030312015073499.pdfIn PDF document text
    • https://vmgeducationtrust.org/home/vmgedu/public_html/public/userfiles/file/43736197695.pdfIn PDF document text
    • https://amg288.com/app/webroot/uploads/files/befuvebusamokekag.pdfIn PDF document text
    • https://kuxorife.weebly.com/uploads/1/3/5/3/135313812/1690896.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_off0000cc9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC9E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e4b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4B5 11052 bytes
SHA-256: ba96d16e1bd42fdfd337a698a68025288572d1ea65253e66de2709ee38309460
font_02_sfnt_off0000fe65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE65 18732 bytes
SHA-256: 9f72668fca9eaea5b4566b2abbed1546c50713d53490228c438f2c3346832436

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