Malicious PDF — malware analysis report

Static analysis result for SHA-256 73b373daeb024c51…

MALICIOUS

PDF

76.5 KB Created: 2021-02-27 05:16:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f7c7b6d0ae398ead2ceed4d61ecbf30f SHA-1: 72ca6b69b97be6b5299d8c61476fd8cbbb3cbea0 SHA-256: 73b373daeb024c5116d47207b95dd9a0524caff81a20f3ec4eea6f9805e40fb1
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://soxebez.ru/123?utm_term=the+stories+julian+tells+pdf PDF link annotation
    • http://sevagawos.getenjoyment.net/best_board_game_deals_uk.pdfIn PDF document text
    • http://sipipewawezizuf.getenjoyment.net/do_honda_pilots_have_transmission_problems.pdfIn PDF document text
    • http://busimaderule.mywebcommunity.org/medieval_2_total_war_kingdoms_exe_file_download.pdfIn PDF document text
    • https://cdn.sqhk.co/popuzanuguw/djfHii5/ffxiv_botanist_leveling_guide_70-_80.pdfIn PDF document text
    • http://xuvaxujogilo.mygamesonline.org/60421306250.pdfIn PDF document text
    • http://lamakexo.scienceontheweb.net/87049187843.pdfIn PDF document text
    • https://cdn.sqhk.co/lisupixiwe/hSUrPZU/9543125252.pdfIn PDF document text
    • http://vuvulusigi.scienceontheweb.net/baby_girl_names_and_meanings_in_spanish.pdfIn PDF document text
    • http://ketaton.mywebcommunity.org/pge_planned_outage_notification.pdfIn PDF document text
    • https://cdn.sqhk.co/disumuneriva/chige9t/lopetifi.pdfIn PDF document text
    • https://cdn.sqhk.co/vopupevomate/cuiiihB/82895850577.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kugelilizibuwum/bamcef_books.pdfIn PDF document text
    • http://raxajabidadida.onlinewebshop.net/excel_vba_find_multiple_values_in_cell.pdfIn PDF document text
    • https://s3.amazonaws.com/pegozegi/captain_america_shield_hd_wallpaper_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/lowuwofuxali/25091253904.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/entry_of_the_gladiators_flute_sheet_music.pdfIn PDF document text
    • http://fowimifefezujo.myartsonline.com/job_interview_questions_and_answers_what_is_your_greatest_weakness.pdfIn PDF document text
    • http://tavoxelelenasi.onlinewebshop.net/51993994254.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE7F 5152 bytes
SHA-256: 998704589b18fa467761115f60f96ba2da3932e4cfb010013ba6e6fe8cae5389
font_01_sfnt_off00010002.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10002 10920 bytes
SHA-256: 68050673e0f259b6153409c6e87a02c2ce0ac6c0ede2927999609195bf2265c8