Malicious PDF — malware analysis report

Static analysis result for SHA-256 5569633af316bcb3…

MALICIOUS

PDF

72.8 KB Created: 2021-03-01 13:26:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b3d8db4985998ba909b53fc7235123c5 SHA-1: f8313bcd739081d9a74bf13b2c65c5c6e2546475 SHA-256: 5569633af316bcb3e20430b1c48936ad54eb45c7a32c7cf79d88c3069e5b6b80
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://zajinet.ru/award?keyword=the+summer+is+over+song PDF link annotation
    • https://fikenetefi.weebly.com/uploads/1/3/4/7/134771518/tedux.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwopazeg/fiamUhi/candy_bubble_land_game_play_online.pdfIn PDF document text
    • https://cdn.sqhk.co/balatexoriv/Hggvjie/airbnb_stockton_springs_maine.pdfIn PDF document text
    • https://nuvarimo.weebly.com/uploads/1/3/1/3/131378817/gujotafaresisirifo.pdfIn PDF document text
    • https://kekoluborefox.weebly.com/uploads/1/3/5/3/135327445/4397806.pdfIn PDF document text
    • https://cdn.sqhk.co/parikozug/ahgjiLv/aoe_2_build_orders_fast_castle.pdfIn PDF document text
    • https://pujowelitolav.weebly.com/uploads/1/3/1/4/131438356/raruletove-puxiwaf-bulizoxelaxapof.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479213/normal_603248fe7e799.pdfIn PDF document text
    • http://jorowijedo.mywebcommunity.org/how_can_i_speak_simple_english_in_daily_life.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383322/normal_5ffb8cda0750b.pdfIn PDF document text
    • http://jarobadut.22web.org/tesijunadupij.pdfIn PDF document text
    • https://xevosafodom.weebly.com/uploads/1/3/4/7/134739965/tararotosifawe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kisalonokexiwi.atwebpages.com/educational_psychology_woolfolk.pdfIn PDF document text
    • http://tozoduva.rf.gd/adobe_illustrator_retro_poster_template.pdfIn PDF document text
    • http://xizilagitakov.epizy.com/5040284363.pdfIn PDF document text
    • http://wajogiteseg.epizy.com/59599775616.pdfIn PDF document text
    • http://besipopi.epizy.com/ana_catalina_emmerich_antiguo_testamento.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_off0000e236.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE236 4868 bytes
SHA-256: 2664c430d3b90c5bd6c25a45f08e47f85ec1ed505dddc40d77d355ed169f3855
font_01_sfnt_off0000f2a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A2 10052 bytes
SHA-256: 05c89118edd58c1fd86fcc410055cfef199b0dbc426701936d2690ab3d4f2419