Malicious PDF — malware analysis report

Static analysis result for SHA-256 fddde31f33134bfa…

MALICIOUS

PDF

72.6 KB Created: 2021-03-04 01:44:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f329d78a3a7b73b521372393367aab87 SHA-1: 0954d469fb957d45eded89e2b6c056fee6c0600e SHA-256: fddde31f33134bfa5ebb3e075728f8568a0e8917fcd3af055f946b18317dc708
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://gimoguvi.ru/award?keyword=can+i+eat+anything+for+breakfast PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4416504/normal_5fc96afac67a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487641/normal_6018ccbc682c1.pdfIn PDF document text
    • https://cdn.sqhk.co/sezunofubuzi/4jeghsN/65566786409.pdfIn PDF document text
    • https://cdn.sqhk.co/bujomuvi/gCuichc/73315929062.pdfIn PDF document text
    • https://cdn.sqhk.co/girewobo/hdYhiET/top_offroad_4x4_simulator_game.pdfIn PDF document text
    • http://pedaropira.22web.org/what_is_measurement_in_research_design.pdfIn PDF document text
    • https://cdn.sqhk.co/lekibefefu/ajd2jYt/doon_defence_academy_dehradun_address.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495400/normal_601af5edc8d72.pdfIn PDF document text
    • http://jojalipubawil.22web.org/spotify_hacked_apk_for_pc.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/ruzaganog/bcbstx_ppo_provider_manual.pdfIn PDF document text
    • http://babokad.epizy.com/old_navy_dress_code_policy.pdfIn PDF document text
    • http://zuvetimimu.rf.gd/pabaferajufulap.pdfIn PDF document text
    • https://s3.amazonaws.com/xefezesebusu/examples_of_endothermic_and_exothermic_reactions.pdfIn PDF document text
    • http://dosidojabar.epizy.com/consumer_reports_customer_phone_number.pdfIn PDF document text
    • http://levewome.epizy.com/algebra_de_baldor_descargar_libro_completo_gratis.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_off0000e0df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0DF 5208 bytes
SHA-256: d1b98398813233e99f39b7e26565d38817f9acb57101a9d80b12e6a329e6f39f
font_01_sfnt_off0000f2a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A0 10196 bytes
SHA-256: 347fa2edc457721cca5de14b8fb568ed67a519ed8d53057b2129a33e15d82a28