Malicious PDF — malware analysis report

Static analysis result for SHA-256 084d41e8a22830e1…

MALICIOUS

PDF

66.1 KB Created: 2021-02-03 23:04:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 436abdfbfa59d3e7abc7de9c30725c2d SHA-1: 58f53eb311b916535f7400a65e3be441dff082ff SHA-256: 084d41e8a22830e1b8fcd344daa5349f547dfd0b15b7e1a106a85ae4d2d92da4
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://seumenha.ru/aws?utm_term=asme+b31.+3 PDF link annotation
    • http://rowaxuxot.22web.org/3gp_mobile_movies_2019_telugu.pdfIn PDF document text
    • http://rikopevadibix.iblogger.org/87154656939.pdfIn PDF document text
    • https://cdn.sqhk.co/tinolefowi/ljcgigf/the_banner_saga_2_character_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/vawapisoxe/8NolspC/hot_wheels_super_ultimate_garage_assembly_instructions.pdfIn PDF document text
    • https://cdn.sqhk.co/xijodepub/TmHibih/monkey_go_happy_planet_escape_walkthrough_text.pdfIn PDF document text
    • http://rewutudot.iblogger.org/bhajan_song_marathi.pdfIn PDF document text
    • http://jatamonip.iblogger.org/brevet_des_collges_franais_2018.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/gumagabu/lisuxuz.pdfIn PDF document text
    • http://mevusajilitum.rf.gd/a4_sheet_height_and_width_in_pixels.pdfIn PDF document text
    • https://s3.amazonaws.com/roware/best_chinese_dictionary_app.pdfIn PDF document text
    • http://debetofewozuri.epizy.com/information_memorandum_template_uk.pdfIn PDF document text
    • http://mulazukaga.rf.gd/averages_worksheet_free.pdfIn PDF document text
    • http://sikofus.epizy.com/airlift_movie_filmyzilla.pdfIn PDF document text
    • http://funazowo.rf.gd/concrete_formwork_material_cost.pdfIn PDF document text
    • http://davafegi.epizy.com/articles_online_test_with_answers.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_off0000c710.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC710 4872 bytes
SHA-256: 2f9a719fa59018177bded38292439c0c2b9675182a4082fde9159f230e490ef3
font_01_sfnt_off0000d7a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7A0 10900 bytes
SHA-256: f0d183ff768e1509e2f903364df524290b16be2d7de90d0ed0dae6a4efe37fe8