Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cf8833dfa415d3c…

MALICIOUS

PDF

74.1 KB Created: 2021-03-13 21:29:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 10b0ca11653bc57399834fb8d7349f29 SHA-1: 72f8b6887db5aa955d166b700b8937a87de0d600 SHA-256: 2cf8833dfa415d3c7721b1102577efeb73b20069f20b8d89d66d458485a69f52
74 Risk Score
Tags
free-cdn-ebook-manual-lure

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://mezovuduw.ru/wix?keyword=add+comptia+certification+to+linkedin PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4477163/normal_60263db6a57b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501383/normal_601a776b96c5e.pdfIn PDF document text
    • http://mihetos.xyz/hematology_lab_equipment7z190.pdfIn PDF document text
    • http://reduslimitalia.website/after_we_collided_movie_release_date_2020_usasnzks.pdfIn PDF document text
    • http://spainwow.pro/aritmetik_dizi_formlleri_lysus9q7.pdfIn PDF document text
    • http://ejqy.com/ratipoludupolaxokutavahwfmi.pdfIn PDF document text
    • http://kulinar2020.site/mebofu8ikrv.pdfIn PDF document text
    • http://p-kavkaza.ru/lagu_addinu_lana_syubbanul_muslimin_stafabandmotcv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417525/normal_5ff0de3a21110.pdfIn PDF document text
    • http://digitalcalakk1.xyz/africa_toto_keyboard_solo_sheet_musicdt8sd.pdfIn PDF document text
    • http://sezituza.66ghz.com/come_follow_me_questions_and_answers.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375200/normal_5ff7765fe942f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461216/normal_600ed1e13092f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xaramoturowuf.rf.gd/c_language_interview_questions_and_answers_mcq.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0cdd4627-3701-425d-874d-369e465bd8ac/how_much_does_a_graphic_designer_make.pdfIn PDF document text
    • http://reviwegovamu.rf.gd/56455197480.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5dbbd36f-5044-4097-a418-f8b163a88600/python_for_data_analysis_example_files.pdfIn PDF document text
    • http://givudejefavapa.rf.gd/what_reading_level_are_the_hardy_boy_books.pdfIn PDF document text
    • http://tokekiloxak.epizy.com/cosmos_a_spacetime_odyssey_episode_4_worksheet.pdfIn PDF document text
    • http://rirukezuruxemuk.epizy.com/lidovebudivukakot.pdfIn PDF document text
    • http://tinuzutajalik.epizy.com/98625488462.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_off0000e514.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE514 5176 bytes
SHA-256: a73985be76957b0cf47708a5a87145797bb314e2f20b02c8121b8e07d60692ec
font_01_sfnt_off0000f69b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF69B 10788 bytes
SHA-256: 6ff841c65f262ce49449549bcd35f5267aa4785a8fac6832fdb432499c9fdf14

Open this report in the interactive analyzer, or submit your own file for analysis.