Malicious PDF — malware analysis report

Static analysis result for SHA-256 7930f7b442fdfcd4…

MALICIOUS

PDF

77.9 KB Created: 2021-09-11 16:35:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: c2fa43844636946cf286c1a11842d0a7 SHA-1: 669faefa4cb9c9ffea19234c5347f5b2056e4b7e SHA-256: 7930f7b442fdfcd4088ddab9abbc93e498e431874494f2251ccf49fd03967e2a
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 https://archism.ru/uplcv?utm_term=hill+climb+racing+apk+unlimited+money PDF link annotation
    • http://mamnonhieutrung.edu.vn/ckfinder/userfiles/files/19166688053.pdfIn PDF document text
    • https://shipnhanh247.vn/asset/files/piketifuninisifejuxa.pdfIn PDF document text
    • http://www.parinet.fi/tiedostot/files/vupatirodunigexi.pdfIn PDF document text
    • http://vilocom.net/webroot/img/files/57242591688.pdfIn PDF document text
    • http://pol2-simf.ru/userfiles/file/78089101242.pdfIn PDF document text
    • http://mikol-styl.cz/userfiles/file/vibasimibelo.pdfIn PDF document text
    • http://www.mamafoundation.cz/ckfinder/userfiles/files/sotovubebobumuzimodu.pdfIn PDF document text
    • http://ms-beauty.com/ckfinder/userfiles/files/lajobovotisaxowavifow.pdfIn PDF document text
    • https://rdsdealers.com/ckfinder/userfiles/files/46149104967.pdfIn PDF document text
    • https://mobspace.xyz/web/img/podborky/files/26759497250.pdfIn PDF document text
    • http://tpt.taipei/asset/uploads/files/3822998431.pdfIn PDF document text
    • https://fgcrubochi.com.ng/ckfinder/userfiles/files/76533818243.pdfIn PDF document text
    • http://biondiairsystem.it/userfiles/files/6294126948.pdfIn PDF document text
    • http://huh.hu/UserFiles/File/dinidukutojafugagow.pdfIn PDF document text
    • http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/161335f46ea654---15979787274.pdfIn PDF document text
    • https://ruedi-leuthold.com/userfiles/files/kufiludan.pdfIn PDF document text
    • http://bacvietexpress.com/upload/userfiles/files/96292292388.pdfIn PDF document text
    • http://podushka.by/files/files/16162750622.pdfIn PDF document text
    • http://qianshunqs.com/admin/upload/93294910852.pdfIn PDF document text
    • https://eric-parnes.com/ckfinder/userfiles/files/87013328079.pdfIn PDF document text
    • http://isotope3.pm-ural.com/uploads/files/porebazerinagapigobunef.pdfIn PDF document text
    • http://masonhn.com/d/files/62833958255.pdfIn PDF document text
    • https://solener.info/ckfinder/userfiles/files/tokonuvuderijagurumujiw.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 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_off0000ca7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA7F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e291.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE291 17820 bytes
SHA-256: 135460940b830bd8747b46b9d3f5fb7e92d08938f753bb0319178b7aba85c3ee
font_02_sfnt_off00011033.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11033 11128 bytes
SHA-256: 66a1a11e6e541070d6c1e576a76763f28758d6779bd38231748602b88d68d325