Malicious PDF — malware analysis report

Static analysis result for SHA-256 fae671e2d4642b50…

MALICIOUS

PDF

84.3 KB Created: 2021-04-02 01:08:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 4257261c39a811f45392359b7035e540 SHA-1: de5bd55ffc27b27432c0f0f9f346fe8554537c5a SHA-256: fae671e2d4642b502aee82a7ee6a24a343427d4750532c41c0cf48dfcb88ecba
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 phishing page. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the presence of malicious URLs and the PDF's structure suggest it's designed to trick users into clicking through to a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://bologen.ru/award?keyword=capital+market+instruments+pdf PDF link annotation
    • http://gogogoinst.xyz/i_hate_to_see_that_evening_sun_go_down_summaryv4m9f.pdfIn PDF document text
    • http://firstsecu-paypal.com/xiwigitikiwiwad22yjo.pdfIn PDF document text
    • http://gevazuvunurodum.22web.org/21697995836.pdfIn PDF document text
    • http://chestlune.online/best_drawing_books_for_comic_book_artists7nj00.pdfIn PDF document text
    • http://extraterrestrials.space/parabola_con_vertice_fuera_del_origen_ejemplosey2l5.pdfIn PDF document text
    • http://bitcoins-profits.com/cancion_de_hielo_y_fuego_libro_6mifd4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/mexijegedakol/bully_anniversary_edition_geography_1_android.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/reruxaramejo.pdfIn PDF document text
    • http://limixumijegaf.epizy.com/76838171194.pdfIn PDF document text
    • http://xedoruvuseju.rf.gd/mopufu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40fcf7c2-e632-476a-ab00-5162e60a3e3e/tenoxewit.pdfIn PDF document text
    • https://s3.amazonaws.com/vebisop/oracle_general_ledger_reconciliation_report.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwimadaneb/how_to_identify_the_phases_of_the_moon_are_there.pdfIn PDF document text
    • http://rujemivegelap.epizy.com/18079662811.pdfIn PDF document text
    • https://s3.amazonaws.com/rimepusox/commandos_5_game_free.pdfIn PDF document text
    • https://s3.amazonaws.com/nufidibodudulad/nimagetenodogezenuwofutat.pdfIn PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/bhakta_prahlada_telugu_movie.pdfIn PDF document text
    • http://mijikudetixo.epizy.com/newixuwe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d6e6551-6dcf-4f11-85d2-fa6675a100e0/what_is_the_role_of_media_in_teaching_of_social_studies.pdfIn PDF document text
    • https://s3.amazonaws.com/tolivajupeku/33172571453.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/govarurabireb.pdfIn PDF document text
    • https://s3.amazonaws.com/sukobogixe/heat_exchanger_design_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/nodetuxapabara/avery_label_templates_for_mac_word.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010001.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10001 5044 bytes
SHA-256: 035d9303e17b34a2c730894256a7d62f40c8697e5d6b4273764042e367e755c2
font_01_sfnt_off00011107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11107 10668 bytes
SHA-256: 69ae205e61b55edd1f9be2c86c1c8683fca85d19e884bbb059ace8534c9046e4
font_02_sfnt_off0001352c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1352C 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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