Malicious PDF — malware analysis report

Static analysis result for SHA-256 1648a3198cb34d66…

MALICIOUS

PDF

72.8 KB Created: 2021-02-11 15:57:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3a613b855378eec71f2eb547149e7095 SHA-1: f43e54345da480a808bf91cdc9590b73e67816b5 SHA-256: 1648a3198cb34d6664c12b47352e6325a7be7e5e45fb27d9739138394656e437
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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://maypoin.ru/wb?keyword=kathi%20movie%20songs%20%20mp4 PDF link annotation
    • https://cdn.sqhk.co/zifiguwosu/ba6fgge/setegamilekaperejajilago.pdfIn PDF document text
    • http://savadaqwe.space/vitamins_books2dnyn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423772/normal_601d17d5f249d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450434/normal_5fec281a847ac.pdfIn PDF document text
    • https://cdn.sqhk.co/jidulopavoji/cdIPRis/manebedekanikadadefux.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393755/normal_5fdf1f2c898dc.pdfIn PDF document text
    • http://xegomivuz.iblogger.org/weather_report_istanbul_10_day_forecast.pdfIn PDF document text
    • http://lufatomitonad.22web.org/rijuzexelixopog.pdfIn PDF document text
    • http://wodunobogigav.22web.org/mental_health_worksheets_on_depression.pdfIn PDF document text
    • http://legiontry.online/rijuliwumikupagodidejh299i.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/gazitif/couple_goals_pictures.pdfIn PDF document text
    • http://fabevurubojob.epizy.com/uspstf_lung_cancer_screening_guidelines.pdfIn PDF document text
    • http://jibipadesubamom.epizy.com/simple_education_website_templates_free.pdfIn PDF document text
    • http://juxudawalugevop.epizy.com/free_calligraphy_fonts_for_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/mokuwanibof/anaconda_for_ubuntu_32_bit.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_off0000dfb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFB0 5224 bytes
SHA-256: 73c8a2d9b3fa5cfa1037fbb37aab68906292d429dda4a797aceed39c0dbeb3cd
font_01_sfnt_off0000f169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF169 10968 bytes
SHA-256: 55a39cc77bf2841e3a0e0d72eab4ee98382ad349d6a94075e334ad60cd398df4