Malicious PDF — malware analysis report

Static analysis result for SHA-256 24e75ae2382cd63f…

MALICIOUS

PDF

67.8 KB Created: 2021-02-03 20:43:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 64297b4bc59eb4d047e395a977b914f6 SHA-1: ba261451960f941a3a5028f833a831af08271ff8 SHA-256: 24e75ae2382cd63fa375d94735780aa5777142ab97e00a7e7cf2aa9668582eef
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://jottigo.ru/wb?keyword=ukf%20form%20guide PDF link annotation
    • https://cdn.sqhk.co/kewesowovim/cieJlhd/war_and_order_game_free_download.pdfIn PDF document text
    • http://thedefenseforge.com/zowijifobuzatuziweyjne2.pdfIn PDF document text
    • http://aydym.club/bitomijujuropemuj1j6v.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381318/normal_600d63f442930.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475863/normal_5ffe8563927ed.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488346/normal_5ff7ed70dae7a.pdfIn PDF document text
    • https://cdn.sqhk.co/dinewemilo/7TIUTje/xubiwes.pdfIn PDF document text
    • https://cdn.sqhk.co/xexodaxafu/aijKOie/what_animal_are_you_psychology_test.pdfIn PDF document text
    • http://7lessons.site/7344345701944t5y.pdfIn PDF document text
    • https://cdn.sqhk.co/zenekukera/hfu6Jhd/project_management_certification_courses_online.pdfIn PDF document text
    • http://nuzenupezebep.iblogger.org/92016743650.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413239/normal_5ff0bf465e76d.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/mupukesunobaga/backup_photos_to_google_drive_android.pdfIn PDF document text
    • https://s3.amazonaws.com/xupovobejanam/writing_answer_sheet_ielts.pdfIn PDF document text
    • https://s3.amazonaws.com/sefepugolupalax/34569144499.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_off0000cf9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF9D 4864 bytes
SHA-256: 6907e0080c9443259108caebb626a5a541b3e38f09c26afdc2e3ac794aaa4ad0
font_01_sfnt_off0000e01f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE01F 10108 bytes
SHA-256: df165bd0cefcfb40d1dc1f6f1cd9dfa8230632a2b7455ba1b94f9b1f104dcdeb