Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7e6a9a1ed663a73…

MALICIOUS

PDF

70.8 KB Created: 2021-02-27 02:17:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 88805c329a6e32e3fc63b9301873beec SHA-1: 432fec328a263d766393b914b420b07848e7fc1c SHA-256: b7e6a9a1ed663a73cac7169af67e26d6ddfa6cacebff42db9071b915120f5293
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/award?keyword=keys+backyard+spa+instructions PDF link annotation
    • https://cdn.sqhk.co/vujagefamig/gVCYgj2/amazon_echo_dot_setup_without_app.pdfIn PDF document text
    • https://dozunetad.weebly.com/uploads/1/3/4/4/134472758/256f2.pdfIn PDF document text
    • https://zirejuvisipaz.weebly.com/uploads/1/3/1/6/131636922/fulifo-nunezubelas.pdfIn PDF document text
    • https://zurejekivob.weebly.com/uploads/1/3/0/8/130813755/sapigumeduram_tafebemigiz_tazagig_dopid.pdfIn PDF document text
    • https://cdn.sqhk.co/dapalufited/ggdgihe/seranifuzabegap.pdfIn PDF document text
    • https://cdn.sqhk.co/nugofonavuf/GgjYNie/hello_body_ambassador_program.pdfIn PDF document text
    • https://sidugavumudoriz.weebly.com/uploads/1/3/4/9/134902227/sibepep-budogo-jenixuvanutabik.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390374/normal_5fd7b6d236dd6.pdfIn PDF document text
    • http://lorakuze.sportsontheweb.net/bewopomemufujitelologizib.pdfIn PDF document text
    • https://suguturame.weebly.com/uploads/1/3/1/4/131438741/395bdb46940eac.pdfIn PDF document text
    • https://cdn.sqhk.co/jidevumedure/jii8Quw/carnival_city_restaurants_specials.pdfIn PDF document text
    • https://cdn.sqhk.co/sujubowip/Vqshahg/sound_editing_app_for_android.pdfIn PDF document text
    • https://cdn.sqhk.co/sobupepokor/tjjuB7m/gorillaz_characters_personalities.pdfIn PDF document text
    • http://pemufosapakem.mypressonline.com/how_strong_is_astas_grimoire.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/jofunozuzof/aparato_locomotor_veterinaria.pdfIn PDF document text
    • http://futakanawus.onlinewebshop.net/6884140916.pdfIn PDF document text
    • http://wejufutaz.onlinewebshop.net/how_do_i_factory_reset_my_portal.pdfIn PDF document text
    • https://s3.amazonaws.com/xukirizugukugi/csp_full_form_in_safety.pdfIn PDF document text
    • https://s3.amazonaws.com/dapekufoxiraku/80449588391.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_off0000d9b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9B5 5308 bytes
SHA-256: 27540780c6aa1eaff4de857eea31f033cb01e51ab7e90213ec1adb154b13e299
font_01_sfnt_off0000ebd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBD8 9928 bytes
SHA-256: f68a1cae862c63af0814363c8c60009432fe4c9e2910efaad56c9e4bcd698ab4