Malicious PDF — malware analysis report

Static analysis result for SHA-256 ada3b007d1ec208c…

MALICIOUS

PDF

73.2 KB Created: 2021-03-01 14:31:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7e31a225771edd61f9744710a9ca9b1e SHA-1: c91c2d2125c58fd8f2af5f3061f9dafb1e5af5dc SHA-256: ada3b007d1ec208ccead9a729d842dd62362a351995847e1ef2e38a374d9ff5c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://nipisod.ru/award?keyword=html+code+bookmark+this+page PDF link annotation
    • https://cdn.sqhk.co/wafexumu/jhjhcFe/animal_x_ray_tech_salary.pdfIn PDF document text
    • https://cdn.sqhk.co/jojojidatun/ig6ihMi/nalutagejuvafet.pdfIn PDF document text
    • http://artrosil.xyz/ajanta_paintings_information8w2ut.pdfIn PDF document text
    • https://bezijenogekise.weebly.com/uploads/1/3/4/8/134875893/293804b039811.pdfIn PDF document text
    • http://universal-kirov.ru/zojexevotowamosewawabipv79i.pdfIn PDF document text
    • https://futuratolofuzup.weebly.com/uploads/1/3/5/3/135399438/woxoja.pdfIn PDF document text
    • http://zelopaqq.xyz/saoti_arewa_latest_musicyifm4.pdfIn PDF document text
    • https://cdn.sqhk.co/fuludasowipu/tgfhfaa/15144574121.pdfIn PDF document text
    • https://cdn.sqhk.co/naxibibu/gixnRt8/royal_family_dance_crew_tiktok.pdfIn PDF document text
    • http://luziniwanemek.sportsontheweb.net/39296032576.pdfIn PDF document text
    • http://helpcopyright-service.com/portfolio_design_graficozmufw.pdfIn PDF document text
    • https://cdn.sqhk.co/feguzuvubut/gjgjV2p/round_corner_rectangle_adobe_illustrator.pdfIn PDF document text
    • https://cdn.sqhk.co/polopomoset/jvmgiij/75169482144.pdfIn PDF document text
    • https://cdn.sqhk.co/mafozerekat/5tijoyt/boom_beach_hack_ios_2020.pdfIn PDF document text
    • http://menbp.online/wedafinuwabasaxejb23a2.pdfIn PDF document text
    • https://kodopexo.weebly.com/uploads/1/3/4/6/134693050/4fa1e59e.pdfIn PDF document text
    • https://cdn.sqhk.co/vibisidumes/mjdgigh/weather_forecast_theme_pack_2018.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jeborawaleko.atwebpages.com/english_vocabulary_in_use_elementary_cd-rom.pdfIn PDF document text
    • http://sewujajapivix.onlinewebshop.net/dobip.pdfIn PDF document text
    • http://xuvekixofeku.onlinewebshop.net/20518585349.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_off0000e0d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D2 5652 bytes
SHA-256: 3207375a4c3bdebc4ffe1c37b9d97b04da71eeea3b636f0457a0b5788e30ec64
font_01_sfnt_off0000f3d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3D3 10448 bytes
SHA-256: d23def684eafb06addd70f51ec46ec7376ad409f84e6105985ddbb8a28228f0b

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