Malicious PDF — malware analysis report

Static analysis result for SHA-256 f26db98fe45433e1…

MALICIOUS

PDF

68.9 KB Created: 2021-02-27 12:58:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6b44799832541205e24f8d42410b0ae0 SHA-1: 877ef97c566cf574b2c2499c23b50c07dcf8c455 SHA-256: f26db98fe45433e1e6a07bdbf5345878a4635e3049ff7cb6d19f0117036b7495
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://mezovuduw.ru/award?keyword=mike+meyers+network%252B PDF link annotation
    • http://zisuroto.mygamesonline.org/pavekunakof.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489257/normal_5fe6956ca9df7.pdfIn PDF document text
    • http://ribadubeko.scienceontheweb.net/68487247808.pdfIn PDF document text
    • http://itnegozio.info/zoom_h4n_pro_vs_tascam_dr-40xfwvmb.pdfIn PDF document text
    • http://copyrightprivacy.site/red_white_christmas_lights_home_depotlttw9.pdfIn PDF document text
    • http://quinzsy-studio.design/free_printable_esl_lesson_plan_template5mefl.pdfIn PDF document text
    • http://meetly.space/how_to_download_autocad_2018_free_trialopxpi.pdfIn PDF document text
    • http://lnstagramoriginal.com/forensic_science_textbookgyj01.pdfIn PDF document text
    • http://dodemul.mygamesonline.org/best_app_to_learn_chinese_2019_free.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/febopa/samsung_s4_mini_datensicherung_auf_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/jojitagifuva/5086889590.pdfIn PDF document text
    • http://piwolimosopobu.myartsonline.com/46835149499.pdfIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/chrome_remote_desktop_jarak_jauh.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_off0000d185.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD185 4852 bytes
SHA-256: 5f2c683a28c28fb8c1b785fff08839f049d0d2047e85f0d7049f93872b29e640
font_01_sfnt_off0000e216.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE216 10876 bytes
SHA-256: cc52ed159c68bef70b71b10e31e498d4c494826f08b7ea9165548aeac742e8bb