Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9a98688ba0b8261…

MALICIOUS

PDF

66.0 KB Created: 2021-03-05 01:29:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 535e7fca611c065a06c5497efa028edb SHA-1: f6dfcd5398d11dc318bbae7a1e54f9f3ba14a6cf SHA-256: d9a98688ba0b826132e11898f96db54e348f32510a9e22681eb29694c19b7f95
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://jottigo.ru/award?keyword=lg+refrigerator+service+centre+in+mehsana PDF link annotation
    • http://supobesopo.mygamesonline.org/mawikuvukopolakil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470231/normal_6021a069a5586.pdfIn PDF document text
    • https://cdn.sqhk.co/mekurapiw/QHjeEjg/senexusub.pdfIn PDF document text
    • http://nakidki-alkantara.xyz/who_die_in_avengers_endgame_black_widow717ig.pdfIn PDF document text
    • https://cdn.sqhk.co/mafozerekat/ifjiueQ/did_u_know_facts_about_human_body.pdfIn PDF document text
    • https://cdn.sqhk.co/mepapogivoma/jjfPhgG/68834113783.pdfIn PDF document text
    • http://bibuzikufaje.mygamesonline.org/how_to_use_logitech_wireless_keyboard_k400.pdfIn PDF document text
    • http://zespodsvetkoy.site/gravity_dash_endless_runner_android9ure9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387417/normal_60025e41bdb72.pdfIn PDF document text
    • http://vinnipoh.fun/how_to_prep_for_cardiac_stress_testgu975.pdfIn PDF document text
    • http://cmb-eco.com/612717839295uzcn.pdfIn PDF document text
    • http://ig-copyrightnotice.com/gupefuxilirarp4ntf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rorokepu.atwebpages.com/how_do_i_connect_my_swann_security_camera_to_my_tv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed1889f7-50da-4b58-8985-ae1b5efc07fb/xegeli.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1032eb6-2c55-4f8b-93db-400a4f46af33/twilight_saga_eclipse_watch_online_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/acda5cb2-6dca-43b2-93f8-c48b0eb6cda0/dininubu.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_off0000c831.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC831 5264 bytes
SHA-256: eb87467490ec4e6492a304688fdaa201ea347b3968604f30f3656a7c3221daba
font_01_sfnt_off0000da02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA02 9624 bytes
SHA-256: 39b696332ca27507bb51d9fc92c65102d3ffa51f44e271a780b0c9a6c13ed3bf