Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d86ac55931322f8…

MALICIOUS

PDF

81.5 KB Created: 2021-03-22 02:58:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6445c13091264448a28714e33dc885e2 SHA-1: 2bde8195661e8ffe9b4bedb63aa51f25c9de48af SHA-256: 3d86ac55931322f84a2eba127f0f726626f87e34b9657545cc6e594ed2342b3a
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, with one prominent URL pointing to a site offering 'mini militia hack apk free download'. This suggests the document is part of a phishing campaign designed to trick users into downloading malicious software by offering enticing but fake software downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://nipisod.ru/wix?keyword=mini+militia+hack+apk+free+download
    • https://cdn.sqhk.co/kufedefivuvu/ssEties/mini_block_craft_online_spielen.pdf
    • https://cdn.sqhk.co/wedowetaso/h6gHtPG/2015_movies_box_office_verdict.pdf
    • https://cdn.sqhk.co/gujowaxexag/ihidu3O/123_numbers_count_tracing_apk_download.pdf
    • http://pornbustyvids.com/planetary_gear_calculatoriukcs.pdf
    • https://cdn.sqhk.co/kabawamurelo/a9fhcjd/business_management_degree_near_me.pdf
    • https://cdn.sqhk.co/litalile/iarjd34/action_driving_school_brooklyn.pdf
    • http://copyrighthelpbusiness.net/lawog3qi68.pdf
    • https://static.s123-cdn-static.com/uploads/4459631/normal_5feebd54383aa.pdf
    • https://static.s123-cdn-static.com/uploads/4454558/normal_5fdf65d1a7517.pdf
    • https://cdn.sqhk.co/kaxejelun/7Hgt7ii/store_manager_position_interview_questions_and_answers.pdf
    • http://sunshop.pro/ardas_kara_punjabi_song_videos2vz5.pdf
    • http://gogogoinst.xyz/35592428139e38dw.pdf
    • https://static.s123-cdn-static.com/uploads/4421342/normal_5feea488b2c8d.pdf
    • https://cdn.sqhk.co/dudavizi/hLgehel/9466111484.pdf
    • http://1gusevshop.space/283702627897zavn.pdf
    • https://cdn.sqhk.co/jafetegupam/dhjidhJ/wallpaper_art_for_iphone_6.pdf
    • http://buybritishcat.com/60029448810bx2hj.pdf
    • https://cdn.sqhk.co/xisalaximel/djgYJBu/bowepagetokizagifodupa.pdf
    • https://cdn-cms.f-static.net/uploads/4426551/normal_5fd7edae81e76.pdf
    • https://cdn.sqhk.co/foxoxaze/geLYDuO/85225183945.pdf
    • http://goproonly.com/plantronics_voyager_5200_uc_bluetooth_headset_for_mobile_workers4yvop.pdf
    • http://rankingcoach-apps.com/51138418989gkij.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f28e.bin
8c82bacf88e004500e2a770911cb859bc087b634dffb309f801ee6d63b283996		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF28E 5164 bytes
font_01_sfnt_off000103f5.bin
66b5ada49d9ba124057fdaae8100e1151dbb6015c9a64372aea5e418a7608c46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103F5 11288 bytes
font_02_sfnt_off00012a43.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12A43 4324 bytes

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