Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d9ea211d97a3875…

MALICIOUS

PDF

71.4 KB Created: 2021-02-20 22:55:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f9c6907a59a3313aa1355a758a647b37 SHA-1: b3728cbd2be75354301135ac646fa8996145ab3f SHA-256: 5d9ea211d97a387587a9d085a2e1e7d75224c2c79aba6905f810fe344b09bbad
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://leonvi.ru/wix?keyword=frog+dissection+coloring+worksheet+answer+key PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4493888/normal_5fd3b07f19efb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366351/normal_60138698913e8.pdfIn PDF document text
    • http://hayatevesigar.online/alvaston_infants_school_uniformhrufe.pdfIn PDF document text
    • http://gevixadita.22web.org/mah_llb_cet_2019_hall_ticket.pdfIn PDF document text
    • http://gouliwer.online/gezeroreneruvaped0yo82.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459055/normal_5ff30f30080ba.pdfIn PDF document text
    • http://ranomurivokav.22web.org/sudelojorenujapasideron.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424347/normal_60021bcbe6e04.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482023/normal_60089e785bcca.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388060/normal_5fcb14ac698b8.pdfIn PDF document text
    • http://proflist-briansk.ru/grandpa_alien_escape_gamel94rk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4530578/normal_5fcd7b400b9dd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rovafitazilom.epizy.com/devil_may_cry_4_apk_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/wujafivabipo/azhage_azhage_song_free_starmusiq.pdfIn PDF document text
    • http://jolagetota.epizy.com/cpld_and_fpga_difference.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuduwonifa/jquery_ajax_zip_file.pdfIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/time_worksheets_grade_3_word_problems.pdfIn PDF document text
    • https://s3.amazonaws.com/kovibu/sonicwall_analyzer_reporting_software_for_nsa.pdfIn PDF document text
    • http://nuxumejaxumem.epizy.com/40214987826.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_off0000dc1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC1C 5412 bytes
SHA-256: 3f5e33c67e86c4bb1d27a8bc11faae8fb738e2f7d7fcc961456fa7bf02bb9ded
font_01_sfnt_off0000eea0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEA0 9932 bytes
SHA-256: cc582e22fa2516a860f3f22baa6d59bc35c04f8419390d0d16d2a586bf4b4c94