Malicious PDF — malware analysis report

Static analysis result for SHA-256 8384917576cf191c…

MALICIOUS

PDF

161.8 KB Created: 2021-04-05 04:18:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 1d68a85300c751b2c0af45027a4ec61f SHA-1: 169f4a8a23dad1a07e79bb5933a3ad224c6845ad SHA-256: 8384917576cf191c64aaea3ff7e56f28f0943ae7fd108f7176aa78b4ddd8ca78
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://midufefew.ru/123?utm_term=pdf+to+word+converter+i+love+pdf PDF link annotation
    • https://cdn.sqhk.co/tajaketo/hGqngcB/epsxe_android_tv_settings.pdfIn PDF document text
    • https://cdn.sqhk.co/pofilese/4haicU2/top_speed_formula_car_racing_tracks.pdfIn PDF document text
    • https://cdn.sqhk.co/lepavenujal/54jegea/clear_swatch_watch_80s.pdfIn PDF document text
    • https://cdn.sqhk.co/padasagam/i5M3ib5/likert_scale_examples_helpful.pdfIn PDF document text
    • https://cdn.sqhk.co/zifalulog/K5jhjbW/the_sims_ps2_cheats_more_money.pdfIn PDF document text
    • https://cdn.sqhk.co/jaxubefe/u1xgekc/92511518419.pdfIn PDF document text
    • https://cdn.sqhk.co/fogizotufijo/gijjhhl/96392347630.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/004b300c-a322-4061-a53d-a75297e7030f/the_adventures_of_sherlock_holmes_book_cover.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/efc3901b-970d-4494-987a-59b1850f5cfe/13649554447.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ec62b74-0387-4946-9855-178efb3ae311/how_do_i_reset_my_samsung_tv_black_screen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73daf336-b8ab-4ca5-b230-e02212b5c218/bigonotemikomi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ce683ef-d460-4d8b-919e-7e5102ece9d2/audio_technica_at-lp60bk-bt_wireless_turntable_and_speaker_system_bundle.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b20bffe-2b4c-4b58-aa89-1cccde947fab/97479520445.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bcce3d2f-9fad-426a-8c92-ef92055c6d44/38517583323.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c86ccc3-63bd-4b34-a2b8-8e8eeddc4998/historia_de_mexico_3_secundaria.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86a7ccc6-9ba0-4671-a443-fca43766a54e/87766622099.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/334f69e3-adc0-4c6c-a29e-18c6ed99914e/74717088328.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24700c2e-a1d3-463f-ba16-24f525399a29/equus_play_london_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/77f5fff0-7d42-4c15-aa84-122afd0e74fc/77341104123.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000107e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107E3 96924 bytes
SHA-256: 2b88d1426613974a5aece790a6669e582ea53c3bc5cf981c7bfdc7eaca9e0814
font_01_sfnt_off00022885.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22885 4916 bytes
SHA-256: 459de44d107e8d08d0da6c9822d6c0f0e5374fd1bdb68834bffbeafd241136d7
font_02_sfnt_off0002396a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2396A 11684 bytes
SHA-256: 9d1787c628f74c3056eae4235a008c59993b3265a279bbba9c98ba1486099a56
font_03_sfnt_off000261cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x261CD 16036 bytes
SHA-256: bc1c1644e30597ae0beaac312b9749a82b64e26c109397326cdc67fdbaf2fe17

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