Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d0b1b164a759273…

MALICIOUS

PDF

68.5 KB Created: 2021-02-14 22:56:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: dfa8bd145a94ddffbd1c99497adb72a7 SHA-1: 90852bf6672011a7471c329f7ba2253739e92524 SHA-256: 5d0b1b164a75927300f690483d88b237cabf0ce87e1752783ac9cb782d737115
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/123?utm_term=axe+deodorant+spray+ingredients PDF link annotation
    • http://yandex-delivery.cc/watorupazakuzimigojiwajipqg2g.pdfIn PDF document text
    • https://cdn.sqhk.co/maweveju/jiRRGgc/creepy_vegas_free_slots_casino_games_online.pdfIn PDF document text
    • https://cdn.sqhk.co/foxidagon/sxgchgi/playstation_5_for_sale_best_buy.pdfIn PDF document text
    • http://obzorov.site/vevelibodajowovapu3eee.pdfIn PDF document text
    • http://datulosuwila.iblogger.org/panic_room_nightcore.pdfIn PDF document text
    • https://cdn.sqhk.co/xekemini/ghhfqTf/suseb.pdfIn PDF document text
    • http://tefosewun.22web.org/speaker_booster_apk_mod.pdfIn PDF document text
    • http://businessmentality.com/fevototoderapixeluseloru4nsit.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/zetituri/streaming_film_bioskop_indonesia_terbaru.pdfIn PDF document text
    • http://nodefojabotozij.rf.gd/beethoven_biography_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/sabegokek/urticaria_multiforme_pediatrics.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/letter_of_authorization_template_word.pdfIn PDF document text
    • http://latujetob.epizy.com/story_of_seasons_gift_guide.pdfIn PDF document text
    • http://zoxokukazo.epizy.com/maduronadika.pdfIn PDF document text
    • http://nozovov.rf.gd/all_in_one_apk_onhax.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_off0000cfcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFCF 5256 bytes
SHA-256: f3bdd386f2810e1447aef4c61a52030ed6b999aa870213c3c072af013081196a
font_01_sfnt_off0000e1c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1C7 10456 bytes
SHA-256: c133e87781e37d026c311d7f0e9e27ceb3804959ad2adcb88122e1fa36001bb3