Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b753fb7366589f4…

MALICIOUS

PDF

73.1 KB Created: 2021-03-03 21:51:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 13d8cf9254d6d36150a085013936e6de SHA-1: 0ed1e1b0eb0534d2dac4d4d649db0a09b14207b3 SHA-256: 1b753fb7366589f4319443919ffccf07762de293c7d2f20ea9fc5d0f491e9d87
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/wix?keyword=edge+interactive+practice+book+level+b+answers+unit+5 PDF link annotation
    • http://xakidofe.sportsontheweb.net/45925388990.pdfIn PDF document text
    • http://pribor-poverka.site/5391883581194yrg.pdfIn PDF document text
    • http://gopidap.scienceontheweb.net/arduino_tutorial_20x4_i2c.pdfIn PDF document text
    • http://nusowutevu.getenjoyment.net/ziresetupalaneg.pdfIn PDF document text
    • http://ver-alex.website/8107702753jnvp4.pdfIn PDF document text
    • http://creditscorecard.info/rutazejepilu5hfod.pdfIn PDF document text
    • http://matteset-spon.space/what_is_outlander_book_aboutnzhax.pdfIn PDF document text
    • http://menesoger.iblogger.org/kinirivajopidijaxeb.pdfIn PDF document text
    • http://fredo.bike/unblocked_games_car_drivingdqwvk.pdfIn PDF document text
    • http://ruvegesa.iblogger.org/ryze_tello_gamesir_t1d_controller.pdfIn PDF document text
    • http://fawikenaxalu.scienceontheweb.net/foretoxafalikibip.pdfIn PDF document text
    • http://bonifacy.site/windows_movie_maker_free_sony_vegas_pro_12yooe4.pdfIn PDF document text
    • http://dektesheff.xyz/40438927900relvs.pdfIn PDF document text
    • http://nepifumawal.22web.org/vijinewikiziraxorabuzo.pdfIn PDF document text
    • http://xagonezunoli.iblogger.org/american_gods_season_2_episode_3_songs.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://warixogaje.epizy.com/spain_visa_application_form_riyadh.pdfIn PDF document text
    • http://suvalomimo.atwebpages.com/xixosawubi.pdfIn PDF document text
    • http://tirisesu.onlinewebshop.net/where_to_buy_sole_e25_elliptical_in_canada.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_off0000e0fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0FD 5676 bytes
SHA-256: 63e1f18037d40cf2f0bac1bfc6c2de23343c994bcf8a1dded8c2c448a7293854
font_01_sfnt_off0000f475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF475 10208 bytes
SHA-256: 20e304ed606dc77a1358396e7169411fde2e480672ef1433f6beb139c5a48f0c