Malicious PDF — malware analysis report

Static analysis result for SHA-256 20028728dbfe93ab…

MALICIOUS

PDF

70.0 KB Created: 2021-02-19 07:27:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 37b56434f0bf8d7acc9ab7c7808a0954 SHA-1: 3cfb50b486f01f3e90cd79cab5260e1a69e358c8 SHA-256: 20028728dbfe93ab18dd290cb82d13e3cd0af6b583dd11287457e48971aca109
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://jottigo.ru/123?utm_term=polaris+trail+boss+250+idle+adjustment PDF link annotation
    • http://bodyita.space/lowijoratemimafosel48sc.pdfIn PDF document text
    • http://daburus.iblogger.org/87162058378.pdfIn PDF document text
    • http://dnepr24.info/58713599070n04mp.pdfIn PDF document text
    • http://wukebejajixajen.iblogger.org/xiwuzexowefukuri.pdfIn PDF document text
    • http://yognat.space/fojamipuvedelufeqagoj.pdfIn PDF document text
    • http://uscreditmonitoring.info/pulegupavoligkw75.pdfIn PDF document text
    • http://wovolutoxali.iblogger.org/crepe_paper_sheets_michaels.pdfIn PDF document text
    • http://top-shop-store.website/throw_java_exception_manuallyzih6h.pdfIn PDF document text
    • http://ita-yog.space/togasonavawopabojelubapo8cj41.pdfIn PDF document text
    • http://prizinsta365.website/candy_crush_mod_apk_unlimited_power0eiob.pdfIn PDF document text
    • http://vostokzapad.su/video_er_iosmbgb8.pdfIn PDF document text
    • http://uspex22.online/pose_streaming_vostfrfkh3f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gatokelemek.rf.gd/labevuj.pdfIn PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/eastern_airlines_flight_401_ntsb_report.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabisura/kuiu_guide_pants_vs_sitka_timberline.pdfIn PDF document text
    • https://s3.amazonaws.com/mudurixo/wujavivixajumugemitel.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/sample_company_profile_format_for_travel_agency.pdfIn PDF document text
    • http://towawemigegi.epizy.com/lirijojimudez.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_off0000d45e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD45E 5584 bytes
SHA-256: 1d9419906978ab9e595e5a9b8fc4c6b651ed19c7238cf8bb11d69649b7f6c92d
font_01_sfnt_off0000e74b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE74B 10336 bytes
SHA-256: ee824f6bc3f10795a09ccb0fc0d92e5ffa1279f73bfa1970be5cedbb7f2a59ad