Malicious PDF — malware analysis report

Static analysis result for SHA-256 243c2ab8002d5aee…

MALICIOUS

PDF

65.2 KB Created: 2021-03-04 22:02:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c7de65004dc2eb20c611bfa3d0424cad SHA-1: 926a8f4b5f173ea8a659b6370120d54c36955c98 SHA-256: 243c2ab8002d5aee51d9b86b0b82e38b16b2e3fc28870c5bac58f3c4202fde04
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://bologen.ru/award?keyword=maytag+neptune+washer+filter PDF link annotation
    • http://fuvisetitisenon.mypressonline.com/bosch_500_series_dishwasher_issues.pdfIn PDF document text
    • http://walunajogikowes.22web.org/calculate_surface_area_for_rectangular_prisms.pdfIn PDF document text
    • http://fekevopimibun.sportsontheweb.net/run_on_sentence_worksheet_key.pdfIn PDF document text
    • https://jitaginedisa.weebly.com/uploads/1/3/4/3/134324559/4855556.pdfIn PDF document text
    • http://barajofa.mywebcommunity.org/how_to_program_seiki_remote.pdfIn PDF document text
    • http://xanusojuruxu.sportsontheweb.net/92980107510.pdfIn PDF document text
    • http://dusexixegiseves.iblogger.org/28683456390.pdfIn PDF document text
    • https://nawowelefet.weebly.com/uploads/1/3/4/4/134498780/lesobevelot.pdfIn PDF document text
    • https://nidiladidubupa.weebly.com/uploads/1/3/4/7/134753920/6613042.pdfIn PDF document text
    • https://xejapekedom.weebly.com/uploads/1/3/4/8/134864907/1b0e43890a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kodexogezetegir.epizy.com/best_golf_gps_for_apple_watch_4.pdfIn PDF document text
    • http://zirururifikelo.epizy.com/80239253571.pdfIn PDF document text
    • http://tenovidoxidal.rf.gd/94186703707.pdfIn PDF document text
    • http://delorikafuba.rf.gd/biolite_flexlight_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/xojafemori/puvunanelof.pdfIn PDF document text
    • http://doregupubufuve.rf.gd/apgar_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/97915433688.pdfIn PDF document text
    • https://s3.amazonaws.com/gogoxowiniza/bapolo.pdfIn PDF document text
    • http://zotevemuvoz.epizy.com/stephen_bigalow_youtube.pdfIn PDF document text
    • http://lovinanijorabe.epizy.com/android_architecture_components_mvvm_example.pdfIn PDF document text
    • http://viwukapatajomi.rf.gd/wordscapes_uncrossed_level_97_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/voxipanovigepiv/rogafiposazefopivufok.pdfIn PDF document text
    • http://silegig.epizy.com/what_channel_is_newsmax_tv_on_cox_cable.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_off0000c4a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4A4 5364 bytes
SHA-256: 78aca239e5572bc07264a7b29c269da47290317f35d861699feb6932490884ef
font_01_sfnt_off0000d701.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD701 9512 bytes
SHA-256: 46a8257d35ba8754e75dbcb13eee4f2a435d1af59832b3ad086cb1d8dd7866a6