Malicious PDF — malware analysis report

Static analysis result for SHA-256 54339950c584c3bf…

MALICIOUS

PDF

66.2 KB Created: 2021-02-27 17:49:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: e1d7fed98c24842a6280c31955821f42 SHA-1: 92b8950bee7a64ed57b0b7659ab28231ab704e11 SHA-256: 54339950c584c3bf9600c36cd0423bf0b31390509f6fd3a66bc87a18a10b63a3
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://gimoguvi.ru/award?keyword=smoothie+recipes+with+yogurt+no+banana PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4464330/normal_5fdaa8a85d35f.pdfIn PDF document text
    • https://cdn.sqhk.co/turanexode/igPjg2c/76774170126.pdfIn PDF document text
    • http://fazejajogavu.medianewsonline.com/bissell_crosswave_pet_pro_cordless_max.pdfIn PDF document text
    • http://dorulezebum.sportsontheweb.net/fitbit_flex_2_price_australia.pdfIn PDF document text
    • https://cdn.sqhk.co/mofijovelu/r0mgcNu/suxuwavoxapuwomiz.pdfIn PDF document text
    • http://molotkov.site/computer_hardware_parts_and_functions_with_picturesr7e7y.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476418/normal_5fd2c25130dfb.pdfIn PDF document text
    • http://dsv-trening.ru/b_tech_1st_year_books_downloadxify8.pdfIn PDF document text
    • http://intereriia.com/pojefalefunawunujezezuxujju3n3.pdfIn PDF document text
    • http://soul-felt.com/how_many_spell_slots_does_a_level_4_paladin_have45qnt.pdfIn PDF document text
    • https://cdn.sqhk.co/bomumuxa/agi1hhh/xmeye_apk_for_windows_7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zutugidod.onlinewebshop.net/how_to_use_power_probe_iv.pdfIn PDF document text
    • https://s3.amazonaws.com/gotitibekovi/darth_vader_wallpaper_android.pdfIn PDF document text
    • https://s3.amazonaws.com/vufuzewasi/arboles_de_navidad_originales_manualidades.pdfIn PDF document text
    • http://widifusi.myartsonline.com/how_to_make_a_simple_house_out_of_popsicle_sticks.pdfIn PDF document text
    • https://s3.amazonaws.com/daselex/beginner_piano_lesson_book.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_off0000c570.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC570 5752 bytes
SHA-256: afa4cfa15130e6e110172ba90e63ebfe5b41437e4b7a60e82c685911a91c3ab3
font_01_sfnt_off0000d8ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8EF 10032 bytes
SHA-256: 8092af8bad63887b5adc06990d4740f802fcb721319c63c66a5b599953d623f4