Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce6d31e40ca2841f…

MALICIOUS

PDF

67.0 KB Created: 2021-02-06 18:27:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 32ed9829bac49b44f4ede89c4f491e0c SHA-1: 8ebd2fa894d11e850ffcd176c5c91ccba8373d9c SHA-256: ce6d31e40ca2841fd0eece6857a5b74f4b11bca199b0f843180fb0e949b2ae0e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/wb?keyword=oecd%20report%20on%20obesity%202019 PDF link annotation
    • http://lnstagramverifycentre.com/tiro_parabolico_ejercicios_resueltos_faciles09oec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408319/normal_601c6f4f811fe.pdfIn PDF document text
    • http://pelistens.xyz/black_beauty_book_series7ubiq.pdfIn PDF document text
    • http://nukowivoxom.iblogger.org/91524186961.pdfIn PDF document text
    • http://amst-watch-v1.club/jotadajuvirdn1cj.pdfIn PDF document text
    • http://mscgis.net/tosudago5xjrx.pdfIn PDF document text
    • http://momsmall.space/black_christmas_ornaments_canadian_tirehzwlt.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413719/normal_5fcda76051b3b.pdfIn PDF document text
    • http://klokisik.space/apa_format_citation_websitendtjh.pdfIn PDF document text
    • http://linza.media/fokivigigenoluvajewuzeroeul6h.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366395/normal_5fe037cb579f4.pdfIn PDF document text
    • http://clebohets.xyz/1966_cobra_super_snake_for_salehzud7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471988/normal_5fcea13492de0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xerevim.epizy.com/bboy_game_psp_free.pdfIn PDF document text
    • http://xafafomuripag.epizy.com/2701378884.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
stream_002_off0000c7f9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xC7F9 5576 bytes
SHA-256: ca7bedae828e55ea309d6e098413872ab99b2c13757ac8310fc8f2526cc3de84
font_01_sfnt_off0000dafd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAFD 10624 bytes
SHA-256: a2d26d801e860e4b05f392aa043fea13d8aba88c881072eb6bdf4e328dc155ce