Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 341ba4e021ccf4c7…

MALICIOUS

PDF / .VIR

76.1 KB Created: 2021-02-25 20:00:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2025-12-13
MD5: f6d73d641d6e43164b5a6ebc2c4d739d SHA-1: 7ecae9a3c69dbcf0226642ccbf1f2f5d1b650859 SHA-256: 341ba4e021ccf4c71667e5e9c6464ca9adc9a533106a0bf2826eff1e6b41f333
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://jacksth.ru/123?utm_term=how+to+set+the+time+on+a+acurite+wireless+thermometer PDF link annotation
    • http://veselutut.mywebcommunity.org/husqvarna_120_mk2_review.pdfIn PDF document text
    • http://artistichomesolutions.com/granny_hack_apk_mod_menu_downloadxcpgf.pdfIn PDF document text
    • https://cdn.sqhk.co/tipefimex/A1ifDtj/robotics_software_engineer_education.pdfIn PDF document text
    • http://duvazejezirofid.22web.org/lunopa.pdfIn PDF document text
    • https://cdn.sqhk.co/zezerixuwab/hifsmha/uber_driver_sign_up_bonus_los_angeles.pdfIn PDF document text
    • https://cdn.sqhk.co/bepemuno/iihjhjc/18405593859.pdfIn PDF document text
    • https://cdn.sqhk.co/nodujugebi/w2Angdl/one_in_the_same_world_war_me_lyrics.pdfIn PDF document text
    • https://cdn.sqhk.co/lulaxujik/hi7ahcC/zifajufupebirelorodilav.pdfIn PDF document text
    • https://cdn.sqhk.co/vujagefamig/lfnjjRn/28772527760.pdfIn PDF document text
    • http://beririka.scienceontheweb.net/five_reasons_why_the_renaissance_originated_in_italy.pdfIn PDF document text
    • http://lamaded.mywebcommunity.org/what_does_an_er_physician_do.pdfIn PDF document text
    • http://kamikofonem.mygamesonline.org/warriners_english_grammar_and_composition_fourth_course.pdfIn PDF document text
    • http://lumobumekola.getenjoyment.net/2013_subaru_impreza_wrx_engine_name.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000ee01.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000ee01.bin)
    • http://bipaxoxibiva.rf.gd/zetidolosivej.pdfIn PDF document text
    • http://nikalokibutoxes.rf.gd/angular_2_form_reset_dirty.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 extracted file (font_00_sfnt_off0000ee01.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE01 5092 bytes
SHA-256: 43c0848b5f76f7272a733aaef6999624bfecc6e385d6dcd19e388336d1c2ee80
font_01_sfnt_off0000ff30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF30 10376 bytes
SHA-256: cdcf96e997ee92e7822d6207015700d220e7881c2355edbeb9d903359a6502f1