Malicious PDF — malware analysis report

Static analysis result for SHA-256 6248424d0c3578c3…

MALICIOUS

PDF

68.6 KB Created: 2021-11-29 17:53:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-29
MD5: 22d2e86ce58ca6d8a8ed15542c71505e SHA-1: 2eb15274af417c58463ac5bcb944f619aee28c3b SHA-256: 6248424d0c3578c3ad7c274a873cf8ca26d627c8365720333721367e0e246af2
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9927

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 http://viethanit.vn/hinhanh/file/fabiruzasafafoxiz.pdf In PDF document text
    • http://debnine.net/UserFiles/File/wekud.pdfIn PDF document text
    • http://s8radziejowice-paszkow.pl/userfiles/file/difigutadokomikapalez.pdfIn PDF document text
    • http://muzeumostrowiec.pl/obrazy/file/medewamadomixesemixade.pdfIn PDF document text
    • http://offerparts.com/upload/files/69410040713.pdfIn PDF document text
    • http://skiflogistics.ru/userfiles/file/8999291218.pdfIn PDF document text
    • https://reparationmobile.net/userfiles/file/42387569450.pdfIn PDF document text
    • http://szhlfz.net/upload/mezelasede.pdfIn PDF document text
    • http://xinnethk.com/userfiles/file/34380682360.pdfIn PDF document text
    • http://bigyikesmedia.com/home/xtremweb/public_html/consultinstitute/web/upload/files/47643966763.pdfIn PDF document text
    • https://alpasol.e-giant.net/upload/files/boxukubuxad.pdfIn PDF document text
    • http://skybuildinfraprojects.com/uploads/mofolokelobi.pdfIn PDF document text
    • http://kleinschadenexperte.com/userfiles/file/48438916043.pdfIn PDF document text
    • https://careerroots.net/ckfinder/userfiles/files/loxebuvemojumabu.pdfIn PDF document text
    • http://ylpqzl.com/ckfinder/userfiles/files/jonesuribug.pdfIn PDF document text
    • http://usmleworkout.com/files/file/31456019681.pdfIn PDF document text
    • https://hunde-katzen.at/soubory/gewebitebufuxikuranezoni.pdfIn PDF document text
    • https://yellowstonewildlife.com/65939947604.pdfIn PDF document text
    • http://tantrungnghia.vn/media/ftp/file/saxitizawiziweru.pdfIn PDF document text
    • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/1617d85e71fa64---26325490748.pdfIn PDF document text
    • http://csc-027.com/userfiles/file/20211117163256_km3d0y.pdfIn PDF document text
    • https://santa.my/images/users/00000000/files/5870970746.pdfIn PDF document text
    • http://www.rsvpcatering-ar.com/files/imagesfile/wuduzudonunivisopazutu.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/7xhmvLXWVJc/uplcv?utm_term=present+simple+and+present+continuous+exercises+2+eso+pdfPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a016.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA016 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000b6b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6B0 1780 bytes
SHA-256: cf43ea07d0e14c5dadc3c8d1a3fd6347ba51c91ab3c5d9ef8ee3d45ec84741db
font_02_sfnt_off0000bf1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF1E 11104 bytes
SHA-256: 0a6b2d4e77e679529644768f4e1bc1256a266484cbf20b5c5e3e0f799cea11b6
font_03_sfnt_off0000d912.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD912 16632 bytes
SHA-256: 6670572e0f4de570b17be20e93d7b9a33be4e328c13e7ff033ad9a9c9fa69916