Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b5a8df84bbc9c91…

MALICIOUS

PDF

70.4 KB Created: 2021-03-12 19:27:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8703004eef2ad00e8bc8762729ad884c SHA-1: d5a2b242328d7679e4bbb5e200a141d7d97708ea SHA-256: 7b5a8df84bbc9c91080e6515e4a3fad935551460844ff2069e809aa119e5cdf9
126 Risk Score

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/award?keyword=vittoria+mio+core+pdf PDF link annotation
    • http://zuzorovix.scienceontheweb.net/aldol_condensation_project.pdfIn PDF document text
    • http://nozumupi.medianewsonline.com/ravimobagejirenesubine.pdfIn PDF document text
    • http://kejoxemubogese.mywebcommunity.org/parental_authority_questionnaire__revised_paq-r.pdfIn PDF document text
    • http://newuwedeza.mypressonline.com/poetry_books_about_friendship_barnes_and_noble.pdfIn PDF document text
    • http://kajejib.medianewsonline.com/anti_deep_freeze_7.21_free_download.pdfIn PDF document text
    • https://fetezubusob.weebly.com/uploads/1/3/2/6/132681625/7096518.pdfIn PDF document text
    • https://cdn.sqhk.co/tusufawenu/dwthejc/electrical_calculator_free_download.pdfIn PDF document text
    • http://fosireditoj.mygamesonline.org/how_to_power_pedals.pdfIn PDF document text
    • https://faneboluti.weebly.com/uploads/1/3/4/4/134464249/fodiwibotuweto.pdfIn PDF document text
    • http://roxelejabojafe.scienceontheweb.net/69127522816.pdfIn PDF document text
    • https://cdn.sqhk.co/zesonixiv/if0pcMy/farm_story_2_halloween_2020.pdfIn PDF document text
    • https://jutamuxenaritul.weebly.com/uploads/1/3/1/4/131452982/166113.pdfIn PDF document text
    • http://dusanaputojinon.mygamesonline.org/how_to_install_codechickenlib.pdfIn PDF document text
    • https://nerukime.weebly.com/uploads/1/3/1/3/131379394/lagovevoneta.pdfIn PDF document text
    • https://cdn.sqhk.co/kazamepa/mcWQgdl/95730546152.pdfIn PDF document text
    • http://nezowigivomi.scienceontheweb.net/livro_admirvel_mundo_novo_em.pdfIn PDF document text
    • https://cdn.sqhk.co/kitaparek/S2DlO0h/niririripexamixivo.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/b1ada8ab-e955-4c19-8bbb-43358e1f731f/xixekudeko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cd40e7e-7d75-45ca-9b50-0282a3d23664/32671938240.pdfIn PDF document text
    • https://s3.amazonaws.com/laginekux/15790681967.pdfIn PDF document text
    • https://s3.amazonaws.com/tokit/kazeterejamimurivoziw.pdfIn PDF document text
    • https://s3.amazonaws.com/naxizugenabi/software_as_built_documentation_template.pdfIn PDF document text
    • http://duwemanuwixam.atwebpages.com/suxogin.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_off0000d34d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD34D 5056 bytes
SHA-256: 990aad61cb169f868ce3d94be9946b1c4ca37161160c36a3c484f9f5c87d351c
font_01_sfnt_off0000e46e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE46E 11856 bytes
SHA-256: f2a990619156d0237f2da5e4afc11bc2f11f6a474fee351670b4af723914ea6c

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