Malicious PDF — malware analysis report

Static analysis result for SHA-256 eea98e299d4be086…

MALICIOUS

PDF

77.0 KB Created: 2021-03-12 14:46:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 504ca0f4fafe1a3cbe4d636706b41865 SHA-1: 95bbf6778f13f86b4cc00b743396bc242e0fa444 SHA-256: eea98e299d4be086e0e3c17044074537eb54221a426418f9ff547cbe459ddc62
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing purposes. ClamAV detection and ML classification strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to pairing a speaker, which is a common tactic for social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/strik?utm_term=how+to+pair+jbl+flip+essential
    • http://twitter-center.com/que_significa_soar_cucarachas_en_la_comidaojdgs.pdf
    • http://verification-help.business/446703216519tioc.pdf
    • https://cdn.sqhk.co/zaliroded/fghIckC/build_battle_minecraft_ideas.pdf
    • https://cdn.sqhk.co/mesafovojifo/b6jdhff/sidimugujimuxivevonejabaw.pdf
    • http://prostosite.site/ostrich_sans_inline_regular_font_free7c31g.pdf
    • http://jadebey-x.com/73954427164mvyyd.pdf
    • https://cdn.sqhk.co/jisepozidis/gO62hcs/85887004989.pdf
    • http://soxiwokix.iblogger.org/wefodibagenudagifubonol.pdf
    • https://cdn.sqhk.co/kajurineg/hdJhayV/boutique_wedding_venue_merseyside.pdf
    • https://cdn.sqhk.co/todiwapubu/ejajjif/87730806390.pdf
    • https://cdn.sqhk.co/moleselofa/hbje5gi/free_music_making_software_mac_os_x_download.pdf
    • https://cdn.sqhk.co/tudosiki/dhg5TRL/snake_attack_3d_simulator_anaconda.pdf
    • http://it50life.pro/dewepemoburezobexedcasa.pdf
    • https://cdn.sqhk.co/kelifevaz/ekiiqig/dasavib.pdf
    • https://cdn.sqhk.co/noxivudeva/jO4qhcV/134765681.pdf
    • http://appless.space/minecraft_games_free_download1ghaw.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/43fe0f1d-209a-4f6b-be61-9782f93791e5/ge_over_the_range_microwave_oven_light_bulb.pdf
    • https://uploads.strikinglycdn.com/files/eba57b92-1f3d-4c60-9a07-40f68180d9e9/best_chess_puzzle_app_iphone.pdf
    • http://pubitawiwinas.rf.gd/how_to_thank_someone_for_taking_care_of_you.pdf
    • http://gazusoketa.epizy.com/mcgraw_hill_7th_grade_science_answer_key.pdf
    • https://uploads.strikinglycdn.com/files/b5969838-01b6-433a-be0c-df54b601bb3c/newtons_laws_of_motion_equations_examples.pdf
    • https://uploads.strikinglycdn.com/files/7fb11f6c-7aed-467f-8e9a-723b1ea7fb40/scotsman_ice_machine_cleaning_procedure.pdf
    • http://rerupini.epizy.com/shiva_rudram_full_namakam_chamakam_devanagari_sanskrit.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed90.bin
c58aa6709bfdf4f145249a3ed64c8212112e8dd1ab02e2ac4d524bcbc8863c4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xED90 5164 bytes
font_01_sfnt_off0000ff3b.bin
c9390fe189ce78e16113a292347699b02859cabe92c32e7df322eaa8d4f7b2d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF3B 11532 bytes

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