Malicious PDF — malware analysis report

Static analysis result for SHA-256 843d5a40f860b8db…

MALICIOUS

PDF

73.4 KB Created: 2021-02-27 02:15:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a5fe1edc1254382a7f27d935b036562e SHA-1: 747f9957f3696ae8ebe4d9bfa3fc2c67b5813ac4 SHA-256: 843d5a40f860b8dbf0c6ee82ff50d81cb2bf3b94c86bf77edc59e488f27e66c6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://soxebez.ru/award?keyword=what+is+the+new+twilight+book+about PDF link annotation
    • http://pazadixokumox.sportsontheweb.net/how_long_for_ribs_in_electric_smoker.pdfIn PDF document text
    • http://yourcy.com/jixurap90mh.pdfIn PDF document text
    • http://lelekelosutov.getenjoyment.net/how_to_prevent_diabetes_with_diet_and_exercise.pdfIn PDF document text
    • http://zokidinodajives.getenjoyment.net/canon_mg3520_user_manual.pdfIn PDF document text
    • http://yognat.space/dunejixovitakidefepz3jkc.pdfIn PDF document text
    • http://bigno.space/anti_saloon_league_apushib3du.pdfIn PDF document text
    • http://nasufulorejuwe.mywebcommunity.org/76789055006.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/sikuva/xoxekiza.pdfIn PDF document text
    • http://liroporuki.myartsonline.com/interior_designing_in_karachi.pdfIn PDF document text
    • http://rukosivujuxu.atwebpages.com/how_to_change_the_drive_belt_on_my_husqvarna_riding_mower.pdfIn PDF document text
    • http://zatuvejamubolo.atwebpages.com/black_hawk_down_game.pdfIn PDF document text
    • https://s3.amazonaws.com/feseni/10168462444.pdfIn PDF document text
    • https://s3.amazonaws.com/ninazarila/mod_apk_games_android_2019.pdfIn PDF document text
    • http://jisijuvod.myartsonline.com/painting_with_a_twist_dallas_tx_75209.pdfIn PDF document text
    • http://wegugoleta.onlinewebshop.net/mudefijuves.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_off0000e40c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE40C 5160 bytes
SHA-256: 0c9e4aace0ae25544ae8ad94e6c1ae8cb91a58098b8f87b66277dd9190ec1dfe
font_01_sfnt_off0000f5b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5B7 10268 bytes
SHA-256: 7192af858ba896b204eb959572749a72a246826b6acdcf2c0d3bc2757f4a68a2