Malicious PDF — malware analysis report

Static analysis result for SHA-256 88b1830c602cef4a…

MALICIOUS

PDF

240.2 KB Created: 2022-03-05 11:58:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: 987ea778938d1daf8e0cd8a0a2848ce3 SHA-1: 45ebd5b54336bed00b6a18b65a3cfd84758f68e1 SHA-256: 88b1830c602cef4a793dee06a2ab3ad5c49ecd23214c924cc27b52b609eb0b9c
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8938

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://adilakaryakitnakliyat.com/kcfinder/upload/files/33067671240.pdf In PDF document text
    • https://daotao.cungthieunhidanang.vn/app/webroot/upload/files/89380230920.pdfIn PDF document text
    • http://svsteinfurth.de/radsportfiles/file/musirefomonudomadenog.pdfIn PDF document text
    • http://paolacaone.eu/userfiles/files/2817623678.pdfIn PDF document text
    • http://finance-bulldog.cz/UserFiles/File/94497924277.pdfIn PDF document text
    • http://elvirajogsi.hu/ckfinder/userfiles/files/74653682871.pdfIn PDF document text
    • http://polletnv.be/uploads/files/79450756032.pdfIn PDF document text
    • http://simpelms.nl/userfiles/files/46209322944.pdfIn PDF document text
    • https://bgg.pirkitpadangas.lt/ckfinder/userfiles/files/10563926017.pdfIn PDF document text
    • http://vietsonplastic.com/uploads/userfiles/file/kizukinuxukega.pdfIn PDF document text
    • http://medizator.ru/ckfinder/userfiles/files/75175274612.pdfIn PDF document text
    • https://laptoptranganh.com/data/dulieu/files/tagex.pdfIn PDF document text
    • http://rosritual.su/app/webroot/js/ckfinder/userfiles/files/36485325455.pdfIn PDF document text
    • http://sisparts.pl/zdjecia/fck/file/xamuvivabununumutiko.pdfIn PDF document text
    • http://sksound.com/userfiles/file/nokig.pdfIn PDF document text
    • https://www.nutfruit.org/js/admin/ckeditor/plugins/kcfinder/upload/files/judamepesasusupufelej.pdfIn PDF document text
    • https://www.rumahnomorcantik.com/file/78206982605.pdfIn PDF document text
    • http://viethanit.vn/hinhanh/file/pozudivorut.pdfIn PDF document text
    • http://conserviabd.com/assets/ckeditor/kcfinder/upload/files/tovuvokemosoledijefi.pdfIn PDF document text
    • http://pjj.aoosung.com/upload/editor/file/fevemafezugipepimokekafa.pdfIn PDF document text
    • https://cafij.co.za/XSRYdR1H?utm_term=risk+assessment+template+pptPDF link annotation
    • http://cabini.it/userfiles/files/xogizutipag.pdfIn PDF document text
    • 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 extracted file (font_00_sfnt_off000358a8.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000358a8.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000358a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x358A8 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00036fc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36FC8 10328 bytes
SHA-256: fe25423668cc7540f49a10236d676329e6cfa95276ef05c7d34ee05694225771
font_02_sfnt_off00038707.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38707 16816 bytes
SHA-256: 8e7fa8bd2947858f7030bfd6e294f9ebd6f5c2de201fd9a70292cdbc1680e994

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