Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d7234ada1cc124…

MALICIOUS

PDF

75.1 KB Created: 2021-10-12 03:49:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 36d2d9017a1cc66ec38fa9a07b8f973a SHA-1: 5fc8bb2d960cc70c087573779540a37f4f8578fb SHA-256: c5d7234ada1cc124b0b9c3edd4c5b90f8bc042e0084e3740b2aea5a80199935f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

Heuristics 5

  • 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.
  • 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://exima.kr/userData/board/file/limevonosibaxor.pdf In PDF document text
    • https://fibaquitaine.fr/cebatrama/userfiles/files/60448151839.pdfIn PDF document text
    • https://phongkhamtamthan.net/uploadeditor/files/lasedudiveruxoxokisezu.pdfIn PDF document text
    • https://santehsevast.ru/userfiles/files/13201527118.pdfIn PDF document text
    • https://karolinanowak.com/userfiles/file/depisamawowaxigipa.pdfIn PDF document text
    • http://bukharaatlanta.com/sites/default/files/file/jirakawuzukemefoworideruk.pdfIn PDF document text
    • http://geometracosentino.com/userfiles/files/46399177907.pdfIn PDF document text
    • http://paolacaone.eu/userfiles/files/bikenaloza.pdfIn PDF document text
    • http://alacarte-grafik.de/userfiles/file/41772067733.pdfIn PDF document text
    • http://tungalag.mn/userfiles/files/kavivugus.pdfIn PDF document text
    • http://biaikatolikus.hu/files/file/gopenivovapabasovetake.pdfIn PDF document text
    • http://evolutionchonburi.com/userfiles/files/gisip.pdfIn PDF document text
    • http://jamesandsons.ca/userfiles/file/xevudowovaxogumusuwo.pdfIn PDF document text
    • http://gaushalango.com/uploaded_files/userfiles/files/18258934403.pdfIn PDF document text
    • https://anbc31.iscriptscloud.com/app/webroot/files/file/negejaxunosorupobezub.pdfIn PDF document text
    • http://ausafe.net/images/art/files/71784055288.pdfIn PDF document text
    • https://posetili.ru/userfiles/file/74839139024.pdfIn PDF document text
    • http://truhlarstvisollner.cz/data/file/ripumitikoxuluf.pdfIn PDF document text
    • http://sciattella.net/images/file/mulugas.pdfIn PDF document text
    • https://ltes2.tw-goods.com/UserFiles/files/jarowivus.pdfIn PDF document text
    • https://cjsc.se/ckfinder/userfiles/files/gifawupelevupimijasi.pdfIn PDF document text
    • https://rowsontw.com/shopadmin/upload/files/sitevururubojurafubenu.pdfIn PDF document text
    • http://mygotour.com/FileData/ckfinder/files/20211003_7C77F4FCA783D4E3.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/TSvcnjQ06Jg/uplcv?utm_term=our+father+in+heaven+school+prayerPDF 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_off0000c2c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2C9 16748 bytes
SHA-256: b330defab433df48ed51c21a5d725d9d134d2e21630bd67661f7bd2d7183eeb0
font_01_sfnt_off0000ed5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED5C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10573 10880 bytes
SHA-256: abe2ab0b271adceeb7d70909b19260dfdb0f2af54a70e72a4fdfc01c6b077b16