Malicious PDF — malware analysis report

Static analysis result for SHA-256 bee8b092027f39e7…

MALICIOUS

PDF

126.3 KB Created: 2021-03-25 09:51:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: ad994b968b76b2b199e255f41ff6f615 SHA-1: 17b968c565af7a001c1f0f7959aeb1e64fe782a5 SHA-256: bee8b092027f39e71f22887643b630e5c580b31a3fa1990622729ac978859613
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://mezovuduw.ru/strik?utm_term=what+is+a+dialectical+process PDF link annotation
    • http://douchehq.xyz/la_leccion_de_august_libro_reseayab9q.pdfIn PDF document text
    • http://janizejekifajab.medianewsonline.com/xikedirulule.pdfIn PDF document text
    • http://zasufigonibat.getenjoyment.net/surface_area_and_volume_formulas_for_3d_shapes.pdfIn PDF document text
    • http://gopusoduj.mygamesonline.org/zizogirotawixojuv.pdfIn PDF document text
    • http://dhl-order.info/92168354818bxbmj.pdfIn PDF document text
    • http://mamefumiwuto.mywebcommunity.org/sorevumuk.pdfIn PDF document text
    • http://movizopolu.medianewsonline.com/87098505020.pdfIn PDF document text
    • http://manidat.sportsontheweb.net/80143850854.pdfIn PDF document text
    • http://beritox.medianewsonline.com/hirayama_autoclave_hv_110.pdfIn PDF document text
    • http://trokot-newshop.online/is_the_fault_in_our_stars_appropriate_for_12_year_olds96fv2.pdfIn PDF document text
    • http://gouliwer.online/bedtime_stories_cast_hamster_bugsyxfubf.pdfIn PDF document text
    • http://azorocheat5.xyz/58991889913xajw5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1da5a72-94d5-4301-b250-dd26172d1e32/90880479640.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0b7c485-5501-4321-b6d0-fa332d9c6eca/anne_rice_wolf_series_book_3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef4d57ad-f1ba-4c7f-9258-3452267dc74c/77054178078.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f848c73e-0ec2-4162-b2d0-b9e2b3c3eefa/jack_reacher_movie_watch_online_free_in_hindi.pdfIn PDF document text
    • https://s3.amazonaws.com/kuboki/can_you_eat_nacho_cheese_on_keto.pdfIn PDF document text
    • https://s3.amazonaws.com/gumegulaxi/bondhu_re_full_song.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/feac9e5a-eaf1-4833-9889-06c26f9fc8ce/facebook_help_center_phone_number_usa.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/731503053.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/hearts_of_iron_4_guide_world_conquest.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db43d73c-9d44-4656-b270-c5a94c422ec8/25563693036.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f79f3faa-dde5-4cf8-8167-f5ff261dd35d/voraxavimuj.pdfIn PDF document text
    • http://zotubune.myartsonline.com/accuair_e-level_touchpad_controller_manual.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_off0001a931.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A931 5176 bytes
SHA-256: 0a82133d99219bb7095a2c5e55259839bddb41c5dd577f6412169115d7173a08
font_01_sfnt_off0001bacf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BACF 14808 bytes
SHA-256: 7589e9258d476cf572cc0ab85ab80aa58a3a50f0a4d625bcb98fc9537edf186e

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