Malicious PDF — malware analysis report

Static analysis result for SHA-256 c61be02e48ff624f…

MALICIOUS

PDF

67.9 KB Created: 2021-02-24 18:45:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-31
MD5: 19d805800f13cc561aed408db0d077f4 SHA-1: cfc75580c7c4547f78c7516f457677fdab1c2a55 SHA-256: c61be02e48ff624faf995c6f99b212fd4f02aa7a32578a0075a720fbe47f6a0d
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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://maypoin.ru/award?keyword=effectual+definition+used+in+a+sentence PDF link annotation
    • http://andyhong.blog/bulevaruvatufevihxt9x.pdfIn PDF document text
    • http://natur-green.fun/mathematics_for_economists_carl_p._simon_lawrence_e._blumes7uiq.pdfIn PDF document text
    • http://gufutaca6.xyz/harry_potter_book_series_authord7u0s.pdfIn PDF document text
    • http://peuly.xyz/dinomubird5zdx.pdfIn PDF document text
    • http://circleshtang.xyz/122244524097c8ej.pdfIn PDF document text
    • https://fezagigix.weebly.com/uploads/1/3/0/8/130813643/xuwufet_xapufojena_wipoxaru_lukopupo.pdfIn PDF document text
    • http://korecos.ru/79965281184fagcl.pdfIn PDF document text
    • http://vijexibat.mywebcommunity.org/how_many_projections_in_engineering_drawing.pdfIn PDF document text
    • http://daddytestit.xyz/board_games_programming_language4bx6h.pdfIn PDF document text
    • http://famozosivupiwij.sportsontheweb.net/our_man_in_havana_audiobook_youtube.pdfIn PDF document text
    • http://nipokaxa.getenjoyment.net/toner_for_brother_mfc-8710dw_printer.pdfIn PDF document text
    • https://nujetamewude.weebly.com/uploads/1/3/4/8/134881912/tabutavamaja_javitu_bubozise_gagekogekupe.pdfIn PDF document text
    • http://lnstagram-blue-ticks.com/widejofumubohv9ly.pdfIn PDF document text
    • http://xuwuvewisin.mypressonline.com/tibivasoriwaxafa.pdfIn PDF document text
    • http://digitaloffice24.ru/yellow_triangle_when_charging_phoneuqf98.pdfIn PDF document text
    • http://nakekizedexu.getenjoyment.net/17022840783.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/gagagakigibapo/bronchial_asthma_thesis.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_off0000ce7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE7A 4876 bytes
SHA-256: ea6abdcd23f192e8b5e4c912d5d68bc54c10e3cddb9894bc7fdd01a020933b23
font_01_sfnt_off0000df29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF29 10208 bytes
SHA-256: aab8dcaddab015d68205b6b3655e80b81777774ec7b34c7a14c0f51d167daee1