Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e39feb29d348c30…

MALICIOUS

PDF

78.5 KB Created: 2021-10-14 10:43:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: e2cf1fc3a531eac20a31d1c10b4f5d59 SHA-1: 93aed51d413ed2187c47f1da4b47ed73beeeccd8 SHA-256: 4e39feb29d348c303abcf7cb4023322e49a8b7522ba8bbe427833607ce52d470
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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 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 http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613dddb685365---43511147803.pdf In PDF document text
    • http://fantalife.nl/userfiles/file/19479202836.pdfIn PDF document text
    • http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16136140197855---97438069955.pdfIn PDF document text
    • https://cargotavio.ru/files/file/5493795223.pdfIn PDF document text
    • https://ecohort.info/userfiles/files/82437112604.pdfIn PDF document text
    • https://wolfgang-photography.com/userfiles/files/nopupuvovelamiriwom.pdfIn PDF document text
    • http://ezclasssites.com/var/wwww/dev-ezclasssites-com/data/files/geraxovofirotukogupimo.pdfIn PDF document text
    • http://pincesorvarshop.hu/editor_up/9120578078.pdfIn PDF document text
    • https://alirezamirmohammadi.com/images/upload/files/xubasifefuwukinowazaja.pdfIn PDF document text
    • https://cliniquemyo.com/userfiles/file/45628244029.pdfIn PDF document text
    • https://kotata-zlin.cz/obr/clanky/file/36738275336.pdfIn PDF document text
    • http://dylogistics.com/userData/board/file/xuzor.pdfIn PDF document text
    • https://zhbiotech.com/CKEdit/upload/files/tewanovolidako.pdfIn PDF document text
    • https://psihodesk.ro/ckfinder/userfiles/files/60486669551.pdfIn PDF document text
    • http://ahppesticide.com/userfiles/file/vosomamegopovezigalode.pdfIn PDF document text
    • http://siciny.pl/userfiles/file/25028999882.pdfIn PDF document text
    • http://boldogelet.hu/media/61202082159.pdfIn PDF document text
    • http://xn--vb0b83rba554gca.kr/page_data/file/20210906001930.pdfIn PDF document text
    • http://nanchang.chinatupai.com/web/js/ckfinder/userfiles/files/17126932151.pdfIn PDF document text
    • http://dailythang.com/userfiles/files/zogonubeme.pdfIn PDF document text
    • http://allgeology.ru/ckfinder/userfiles/files/9271784464.pdfIn PDF document text
    • http://whatcanidoforyou.eu/publish/file/gitejejikulilomivelax.pdfIn PDF document text
    • http://poptheme.cn/uploadfile/files/20210908_061922.pdfIn PDF document text
    • http://abnig.friendship-match.com/upload/files/nasazizakexunobowove.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/TxADE9PCSUw/uplcv?utm_term=drawing+room+with+mandirPDF link annotation
    • 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_off0000cdf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDF5 10436 bytes
SHA-256: 23e1a4a612654a49f942b0ed5eda3c6912fe796f8104359f7dd2742bf2818319
font_01_sfnt_off0000e52c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE52C 18120 bytes
SHA-256: 1b6b8a9c97f04df1b8028477054d76dce2063fad0211a94cb79821bdaea0d12f
font_02_sfnt_off00011464.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11464 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1