Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d851450a56d7b72…

MALICIOUS

PDF

78.1 KB Created: 2022-03-30 23:46:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 7aa1df6c64f68bc9471b67de301778eb SHA-1: 1a9974e6fd6397db46b4e5d9170ac89f1e592373 SHA-256: 5d851450a56d7b72d06eaaf45dfe1cb4dd91f284d162df7053b44720f8b80536
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9844

Heuristics 7

  • 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.
  • 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://cafij.co.za/YmrXLWy8?keyword=the%20iliad%20and%20the%20odyssey%20written%20by%20homer%20are%20examples%20of%20which%20poetry PDF link annotation
    • https://raxabebawozovi.weebly.com/uploads/1/3/4/3/134311701/7848889.pdfIn PDF document text
    • http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/4131cc1a1bb3d10c3d57972cd686fc0f/80245095825.pdfIn PDF document text
    • https://hophamthaibinh.com/upload/files/bivexudorubuzidovol.pdfIn PDF document text
    • https://pabedowilopore.weebly.com/uploads/1/3/1/1/131163579/5941084.pdfIn PDF document text
    • http://cariboohose.com/userfiles/file/vabazafegelisoredixum.pdfIn PDF document text
    • https://ruwufinojib.weebly.com/uploads/1/3/4/6/134643146/b905b855.pdfIn PDF document text
    • https://fikatora.weebly.com/uploads/1/3/1/8/131872269/fovatib-ninofib.pdfIn PDF document text
    • https://wupebeziwemipi.weebly.com/uploads/1/3/5/3/135315897/282f17b195401.pdfIn PDF document text
    • https://jekaboda.weebly.com/uploads/1/3/5/3/135398795/49ccb7.pdfIn PDF document text
    • https://nonagezafinu.weebly.com/uploads/1/3/4/6/134666590/jekunepitafedaf.pdfIn PDF document text
    • https://supesitibozuxo.weebly.com/uploads/1/3/1/4/131454850/87e35fb7b6e6.pdfIn PDF document text
    • https://lalevajapogos.weebly.com/uploads/1/3/0/8/130874146/rofeluli_xenas_mevaworefipos_gefumaravazu.pdfIn PDF document text
    • https://epgeptech.hu/ckfinder/userfiles/files/97193005922.pdfIn PDF document text
    • http://giraf-tour.com/kcfinder/upload/files/mojoxevimifokiw.pdfIn PDF document text
    • http://harmony-stone.info/js/kcfinder/upload/files/7441810075.pdfIn PDF document text
    • http://www.oabrn.org.br/2017/_ups/files/files/50013603708.pdfIn PDF document text
    • http://darelbachra.com/app/webroot/js/kcfinder/upload/files/48207560898.pdfIn PDF document text
    • https://zefijevizo.weebly.com/uploads/1/3/2/3/132302816/kadiwijatazawizume.pdfIn PDF document text
    • http://skomi.ru/img/files/file/zesobakoboburutegepok.pdfIn PDF document text
    • http://ubestsports.com/imager/files/20220326092731.pdfIn PDF document text
    • http://topclinique.ma/kcfinder/upload/files/3092156385.pdfIn PDF document text
    • https://wukajimodowel.weebly.com/uploads/1/3/0/8/130874313/vobajoxomesetu.pdfIn PDF document text
    • http://canlook.ru/userfiles/files/mifopawedave.pdfIn PDF document text
    • https://questymeca.questyme.com/userfiles/file/83913916097.pdfIn PDF document text
    • http://dolphinkorea.com/files/files/kelopididuxiloxevemipege.pdfIn PDF document text
    • https://karupijelajedo.weebly.com/uploads/1/3/4/8/134878973/5405829.pdfIn PDF document text
    • https://mivijupa.weebly.com/uploads/1/3/4/5/134578330/1812606.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_off0000cf9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF9B 16192 bytes
SHA-256: 10e53f5ec4dcd0471c9e2a958b3144836a52839d909db5afc389cccbc4227fed
font_01_sfnt_off0000f971.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF971 11292 bytes
SHA-256: 8c986f6082024293d519e337d7c1373437bebf8e6495ca59f6abfa103d25c7d2
font_02_sfnt_off000113a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113A6 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336