Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fc4e59196c49428…

MALICIOUS

PDF

68.6 KB Created: 2021-02-26 11:16:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f7dd2db384935277492c308c6ac35db1 SHA-1: e9d995ef39ca0222592805df894ca14a91898e52 SHA-256: 5fc4e59196c49428de25b18b0cb3ace87763160cdf1d0d9632a164b2108e2b47
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 https://resalured.ru/wix?keyword=compound+worksheets+for+grade+1 PDF link annotation
    • http://creditstar-kabinet.com/lelupojibarerugivipebunwyxny.pdfIn PDF document text
    • https://dokerawu.weebly.com/uploads/1/3/4/3/134313580/lugivogali-kinutilomu.pdfIn PDF document text
    • http://chategratis.online/mcat_organic_chemistry_equation_sheet4cut6.pdfIn PDF document text
    • http://anbieterbewertung-autoscoutch.com/plano_de_estudos_medicinawvlm7.pdfIn PDF document text
    • http://shoop-fr.ru/animated_gif_wallpapers_for_androiduiyiz.pdfIn PDF document text
    • https://cdn.sqhk.co/vupapevixu/Tn3ihid/bavolujukujije.pdfIn PDF document text
    • https://cdn.sqhk.co/tategupet/PjjcMii/xewasogijanurusoji.pdfIn PDF document text
    • https://bixagitiwor.weebly.com/uploads/1/3/4/6/134618264/32122.pdfIn PDF document text
    • https://cdn.sqhk.co/vimibaja/YifhhyD/40849531947.pdfIn PDF document text
    • http://sarhello.online/rakopifaropisovabivubamuj05dzs.pdfIn PDF document text
    • http://dompodklyuch.com/cars_movie_characters_yellow_car0yz8s.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sezusol.epizy.com/webpack_angular_template_loader.pdfIn PDF document text
    • http://bemeridalazobox.epizy.com/best_electric_ice_cream_maker_reviews.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cdd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDD5 5536 bytes
SHA-256: 33cd1e55065501bfed95766d3763886e34623ff868e5fc08332b9ff9c4d50fb9
font_01_sfnt_off0000e098.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE098 10808 bytes
SHA-256: 3df8bf20b3eeab024da289c1b4e97a63cb2c92b2064ff5a97223ddc6ec5054fa