Malicious PDF — malware analysis report

Static analysis result for SHA-256 4788f8bc7fba60f3…

MALICIOUS

PDF

74.9 KB Created: 2021-09-09 03:05:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 5f7dcee1cfc58cc1df78d9c7abf37e51 SHA-1: 1aa4c53a9fdf53caa8611424e22a09bac375718a SHA-256: 4788f8bc7fba60f306e6b95e70b0c08375464afcb5c05368b1cc621dfe9d3927
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

Heuristics 6

  • 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.
  • 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://motocams.cz/ckfinder/userfiles/files/96183195019.pdf In PDF document text
    • https://comfortinnbarrie.com/phpsites/vertical_living/uploads/file/sutoxixujekam.pdfIn PDF document text
    • https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/pjjofvthkeae1eke10v0n3ib80/fejebewoximakosozajodoti.pdfIn PDF document text
    • http://nm-union.ru/ckfinder/userfiles/files/96336565802.pdfIn PDF document text
    • http://www.martiusstaden.org.br/js/ckfinder/userfiles/files/xoxafuduzodupubirive.pdfIn PDF document text
    • http://orlickachata.cz/files/files/52954461392.pdfIn PDF document text
    • http://dealershop.es/camarasegovia/userfiles/file/mosix.pdfIn PDF document text
    • http://b-solutions.net/userfiles/file/rosusef.pdfIn PDF document text
    • http://ecohost.ru/pics/images/file/24751247909.pdfIn PDF document text
    • http://j-club.eu/userfiles/file/suravelulufuxoxetili.pdfIn PDF document text
    • https://serwisnawigacji.pl/userfiles/file/xodawozo.pdfIn PDF document text
    • https://www.tvmreza.tv/ckfinder/userfiles/files/76453760963.pdfIn PDF document text
    • https://greenways.at/userfiles/file/49096224997.pdfIn PDF document text
    • http://savytrading.com/userfiles/file/xonugonurif.pdfIn PDF document text
    • http://sieuthimaynhapkhau.com/upload/files/78113326013.pdfIn PDF document text
    • http://lmleadmanagement.com/userfiles/files/jazubekigowom.pdfIn PDF document text
    • http://prmakeup.com/Image/files/94985226833.pdfIn PDF document text
    • http://paulbwatkinslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fixisaban.pdfIn PDF document text
    • https://fgcrubochi.com.ng/ckfinder/userfiles/files/nidepixelapopumiviwid.pdfIn PDF document text
    • https://pakistanchristiancongress.org/userfiles/file/getunirafev.pdfIn PDF document text
    • http://watdoenwevandaag.nl/upload/keduwa.pdfIn PDF document text
    • http://wanyuantemple.tw/userfiles/file/4413915039.pdfIn PDF document text
    • https://greenbins.ca/ckfinder/userfiles/files/19124207788.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=free+pdf+to+csv+converterPDF 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.netReferenced by PDF JavaScript
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseReferenced by PDF JavaScript

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c0c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0C4 10356 bytes
SHA-256: ff2830e667efaaaf620296ad3065c74a4ffc83bade74af3f0ef177f4e374f51f
font_01_sfnt_off0000d841.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD841 17644 bytes
SHA-256: 1830359619eb5ae760cc27ef2549e96dd61a4ae365e939d463343564656dcbf0
font_02_sfnt_off00010604.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10604 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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