Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5e205b1918683b4…

MALICIOUS

PDF

80.3 KB Created: 2021-03-05 12:04:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4cb20640bf2139fef6761345a23f97f5 SHA-1: 2c4a22d68a6c17541d289e1eb915288a87702044 SHA-256: d5e205b1918683b40ed2bcc0f49feb71043d88d83cc128b7c8a41136badb0b0d
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL, identified as a phishing lure related to earphone charging issues. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of multiple external URLs suggests the document is designed to redirect users to malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://dugedepap.ru/aws?utm_term=why+won%2527t+my+earphones+charge
    • http://yourcy.com/keliroliniwotaxidjg9fz.pdf
    • https://cdn.sqhk.co/ponesigis/aCieEkH/modunopi.pdf
    • https://cdn.sqhk.co/bipokagiti/e1icWgd/tap_galaxy-_build_your_space_world.pdf
    • https://cdn.sqhk.co/jawutuwek/SgiaPhe/space_heater_outdoor_rental.pdf
    • https://cdn.sqhk.co/xibumediw/RK97sUg/wise_live_online_teaching_and_coaching_app.pdf
    • https://cdn.sqhk.co/rujiwujik/2niabid/63193235829.pdf
    • http://prodive.su/how_to_clean_the_soleplate_of_my_rowenta_ironbk2v8.pdf
    • https://cdn.sqhk.co/fenazijeguk/g7jiXja/12216378892.pdf
    • https://cdn.sqhk.co/wobuwozavenu/ikjjYji/92644319333.pdf
    • http://kobivoweder.mypressonline.com/jvc_camcorder_cassette.pdf
    • http://sijemogezabusa.sportsontheweb.net/35568290347.pdf
    • https://cdn.sqhk.co/jotapepikota/hjjGyhd/waves_tuner_for_sale.pdf
    • https://static.s123-cdn-static.com/uploads/4453579/normal_5fc752d59c0a2.pdf
    • https://static.s123-cdn-static.com/uploads/4426558/normal_5ff57c6cf2103.pdf
    • https://cdn.sqhk.co/naziwixolagu/iejeshi/video_making_app_for_android_free_download.pdf
    • http://redofokotab.sportsontheweb.net/book_report_format_5th_grade.pdf
    • http://kafalukuwemi.mygamesonline.org/tuvujurikudubelitemi.pdf
    • https://cdn.sqhk.co/rabataxuvax/xigjekE/idle_theme_park_tycoon_aqua_park_cheats.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/2c34e439-8ef2-45f7-8964-1fdbd1d892ac/98395440653.pdf
    • https://uploads.strikinglycdn.com/files/a65962dc-ba60-4dfb-a10f-1e922e9c61cf/basic_english_grammar_class_10_2020.pdf
    • https://uploads.strikinglycdn.com/files/3909ad5a-23a6-4b76-94e5-00772c6a49e9/el_seor_de_las_moscas_descripcion_de_los_personajes.pdf
    • https://uploads.strikinglycdn.com/files/cdebe9c1-4345-4b66-955d-011bdd0ea179/napalidim.pdf
    • https://uploads.strikinglycdn.com/files/fdc2788b-3e7b-47d3-bbd9-532e44d338a3/sat_books_for_sale.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_off0000fc07.bin
8f9ab1d9ce05638f4601cc11d56994a76da80d41f2b68d60d155b1e549bcb94b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC07 5556 bytes
font_01_sfnt_off00010ee6.bin
405a1c0c12591cccd8a7cb52dddeca2eb49ac52d3acdd0b8f14d4358fa0d643f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10EE6 10868 bytes

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