Malicious PDF — malware analysis report

Static analysis result for SHA-256 18b8cf63a3bd68aa…

MALICIOUS

PDF

75.9 KB Created: 2021-02-05 03:25:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: eb1e0434521c28d6a8730a27dd45251c SHA-1: 598b7968b3b945c22b93528bcaede14e8c6ce221 SHA-256: 18b8cf63a3bd68aa783299d0eb1ea46d743616f6e7d0d20cd581176f69dda1fd
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=bridal%20shower%20sheet%20cake%20sayings PDF link annotation
    • http://de-bewertung-id2842384.icu/smd_components_identificationwsuwy.pdfIn PDF document text
    • http://jinokawobusuzi.iblogger.org/mopedezodisexa.pdfIn PDF document text
    • http://liko-sneakers.com/loxalofirojer2dms.pdfIn PDF document text
    • http://filemarker.store/5_clues_1_word_answers_level_306xjsut.pdfIn PDF document text
    • http://dwatches.site/phasmophobia_hide_and_seek_scary_games_onlinekbus9.pdfIn PDF document text
    • http://kaxazul.iblogger.org/broiler_production_manual_zimbabwe.pdfIn PDF document text
    • https://rinotawobuv.weebly.com/uploads/1/3/4/7/134768279/rezupudero-piperaku.pdfIn PDF document text
    • http://kkkirrreeee.space/bisewisefukhwm.pdfIn PDF document text
    • http://musofiron.ru/always_know_what_to_sayotye6.pdfIn PDF document text
    • http://xivasupati.iblogger.org/ruzezojurazilawa.pdfIn PDF document text
    • http://pc-remont.website/rockin_jump_neon_nightvraso.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/genukopapovixo/esports_logo_template_no_text.pdfIn PDF document text
    • http://navasegekukuj.epizy.com/akhiyon_se_goli_maare_movie_song_ming.pdfIn PDF document text
    • http://gaxugozoj.epizy.com/kwl_chart_template_free.pdfIn PDF document text
    • http://kuxixatizoxop.epizy.com/netuxasinevofes.pdfIn PDF document text
    • http://wojotefeva.rf.gd/action_games_apk_data.pdfIn PDF document text
    • http://ziwutaje.epizy.com/year_6_division_worksheets_uk.pdfIn PDF document text
    • http://kimamewaseziwal.epizy.com/14970988684.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_off0000ec20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC20 5508 bytes
SHA-256: c5d142da4c12286e21db6f10665f4997d1163ca92c4bf6772f1cac7f2ed73128
font_01_sfnt_off0000feed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEED 10536 bytes
SHA-256: 284c2704a8d9ce7cdd0cbbcde3b5285687378f04995f6f454573b28635aaed70