Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9901d2cc1baf352…

MALICIOUS

PDF

79.9 KB Created: 2021-09-12 00:38:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: 3839f5ae08f3694d38e5f2af72e332aa SHA-1: 9cb3b28ff111335da9f56aa5af8eaa16d9b7b0b3 SHA-256: f9901d2cc1baf35282ea22960ad286271c8f4efa302d410b45b3cc5b1cc7bf12
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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://tieulongcopro.com/luutru/files/jimisij.pdf In PDF document text
    • http://galsabino.it/userfiles/files/54172167376.pdfIn PDF document text
    • http://www.anaja-inter.org/public/file/92256334937.pdfIn PDF document text
    • http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132b456734aa---saxonu.pdfIn PDF document text
    • http://haithuanphat.com/uploads/files/penaxifolozax.pdfIn PDF document text
    • http://i-physiology.ru/upload/fewaxowafolulug.pdfIn PDF document text
    • https://sportnazona.bg/f/uploads/files/jinaveluvexedu.pdfIn PDF document text
    • http://kapalishakti.com/ckfinder/userfiles/files/3405835454.pdfIn PDF document text
    • https://powermailer.in/userfiles/file/83866766366.pdfIn PDF document text
    • http://www.peritaonline.es/ckfinder/userfiles/files/lufozalo.pdfIn PDF document text
    • https://rusepress.com/uploads/wysiwyg/files/sixoposojegudizub.pdfIn PDF document text
    • http://daisytalavera.com/userfiles/files/rimebagol.pdfIn PDF document text
    • http://reguitti-engineering.it/userfiles/files/kijenojeki.pdfIn PDF document text
    • http://globalbando.com/DATA/upload/files/202109112152001513.pdfIn PDF document text
    • http://hockeydh.com/files/ups/files/50667350632.pdfIn PDF document text
    • http://kfnmsz.com/upfolder/e/files/20210904015735.pdfIn PDF document text
    • http://travellightnepal.com/userfiles/file/mosikedekuna.pdfIn PDF document text
    • https://voyageaventurenepal.com/upload/files/jazurekibedapewunowa.pdfIn PDF document text
    • https://stw-nowogard.pl/download/file/84270690419.pdfIn PDF document text
    • https://pmms-online.com/assets/file/zisabejomoxi.pdfIn PDF document text
    • http://wangyiphk.com/userfiles/pamavawupimux.pdfIn PDF document text
    • http://pioneerbuzz.net/userimages/melidotanavadorokexege.pdfIn PDF document text
    • https://xn--p3t29jo1ed4o4xw.tw/upload/files/rarub.pdfIn PDF document text
    • http://rallyteamwalraven.nl/file/kivapofiwig.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=mover+fotos+de+galeria+a+sd+androidPDF 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_off0000d650.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD650 16696 bytes
SHA-256: 6f7a425f8d03c816d8c15e52244b80b9f2eea06ec56da5ca753e034563f6fa64
font_01_sfnt_off0001016b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1016B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011982.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11982 10588 bytes
SHA-256: b7ec547ca58a1d956b40bd195f3e706d88d06baec4a59908b40b82070d62076a

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