Malicious PDF — malware analysis report

Static analysis result for SHA-256 59c87883ae185b61…

MALICIOUS

PDF

66.2 KB Created: 2021-02-26 05:44:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 42b974a9c9be96f543960581c0f39947 SHA-1: 9aa9e8e3f04c93add9756f9a23482462d67163db SHA-256: 59c87883ae185b615d12d25d871cc0669bec1a14ffd4ca25960e96f4071ebd3d
126 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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/wb?keyword=como%20hacer%20un%20estudio%20de%20viabilidad%20sencillo PDF link annotation
    • http://doorstepcomputers.com/75743443013v5rq0.pdfIn PDF document text
    • http://devgame.design/wizezsavpb.pdfIn PDF document text
    • http://rowejabajusape.22web.org/fikutuvituxepidu.pdfIn PDF document text
    • https://cdn.sqhk.co/kawonidoza/8idYEib/mixigubodivodegekitanud.pdfIn PDF document text
    • http://pipvip.ru/kia_cerato_2020_owners_manualdcz8s.pdfIn PDF document text
    • https://cdn.sqhk.co/gabazumad/icRibjc/cooking_master_game_download.pdfIn PDF document text
    • https://cdn.sqhk.co/jolodovi/ghhcXji/xofogutu.pdfIn PDF document text
    • https://cdn.sqhk.co/xumesapaxoku/jjAiKgf/82498017002.pdfIn PDF document text
    • http://bonus332.site/canon_printer_mx472_instructions3eo4f.pdfIn PDF document text
    • http://nukowivoxom.iblogger.org/bottom_navigation_bar_android_change_color.pdfIn PDF document text
    • http://geloxexomub.iblogger.org/lenovo_t420_how_many_ram_slots.pdfIn PDF document text
    • https://cdn.sqhk.co/dudugetogi/gejbhjb/bts_army_wallpaper_laptop.pdfIn PDF document text
    • http://goodxday.xyz/bollywood_video_song_hd_2018x1j6x.pdfIn PDF document text
    • http://help-service-support.com/chief_software_architect_roles_and_responsibilities3qnzo.pdfIn PDF document text
    • http://devicesprotectionforusers.site/good_intent_kimbra_sheet_music4zkq2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sefukapa.epizy.com/college_ranking_us_news_and_report.pdfIn PDF document text
    • http://bepuvebawufik.epizy.com/52796690521.pdfIn PDF document text
    • http://fotopokidag.epizy.com/28073031695.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_off0000c4f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4F0 5284 bytes
SHA-256: aa638b907721e9d3252c6aabb961afb5dbb45b8f6d016c80ad81efb55f63fc3a
font_01_sfnt_off0000d6ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6BA 10668 bytes
SHA-256: bdb9988aad94822cd417ef18a21a6ee2343bbdd92d3332c8d2226a74b1317af2