Malicious PDF — malware analysis report

Static analysis result for SHA-256 05d4119e8740039d…

MALICIOUS

PDF

69.2 KB Created: 2021-02-22 05:46:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: cd34497f09e0fb2350d0a65bcb2111f6 SHA-1: 7786fe4aa9135ba69631c91e155878dff0f4396e SHA-256: 05d4119e8740039d556ddf25b706b3518eaf11e3fff9719f568478bcf219f9f4
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://druttle.ru/wix?keyword=solve+by+graphing+worksheet PDF link annotation
    • https://cdn.sqhk.co/kewukapugino/1Xghjly/wwe_champions_top_tier_list_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/tanusulirava/ha1ig7m/nora_fatehi_songs_list_mp3_download.pdfIn PDF document text
    • https://datugabow.weebly.com/uploads/1/3/4/7/134745554/93d4fdbb44b.pdfIn PDF document text
    • https://cdn.sqhk.co/girolivudafo/hjhjaD9/como_cargar_saldo_gratis_claro_argentina.pdfIn PDF document text
    • http://cmb-accueil.com/anatomie_cytologie_pathologique98rab.pdfIn PDF document text
    • https://cdn.sqhk.co/dedogupazib/okghbjh/11914343801.pdfIn PDF document text
    • https://cdn.sqhk.co/xolofiwano/jggiiao/drift_car_driving_simulator_mod_apk.pdfIn PDF document text
    • http://rubeatyshop.xyz/political_science_textbook_class_111kzm7.pdfIn PDF document text
    • http://getveran.site/82751131416jlaa0.pdfIn PDF document text
    • https://cdn.sqhk.co/wefenilu/fuja8xt/solar_system_map_live.pdfIn PDF document text
    • https://cdn.sqhk.co/wibezudak/Kshh7GF/63241351310.pdfIn PDF document text
    • http://questotzvezd.space/lebononugunezenqly6b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wutodabegaf.epizy.com/677683150.pdfIn PDF document text
    • https://s3.amazonaws.com/xidulumexi/sadimazexofuzen.pdfIn PDF document text
    • https://s3.amazonaws.com/tigewibejageju/77865570587.pdfIn PDF document text
    • http://tugupora.epizy.com/data_warehousing_fundamentals_for_it_professionals.pdfIn PDF document text
    • https://s3.amazonaws.com/mozirolinitaje/teneki.pdfIn PDF document text
    • http://favagapararo.epizy.com/american_authors_believer_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jebupofedijakuk/romeo_and_juliet_act_2_notes.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_off0000d216.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD216 5644 bytes
SHA-256: 3df13f4992b1bb9e50cabc8de679f0d59c5d730c0319a16f098a87a17cf256fc
font_01_sfnt_off0000e561.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE561 10008 bytes
SHA-256: 6994f521d002977cbfd96e66796a50f2fb5fdb8c34932a6dd06c6d5ab99d7e83