Malicious PDF — malware analysis report

Static analysis result for SHA-256 24f5e156432490e4…

MALICIOUS

PDF

71.3 KB Created: 2021-03-10 10:10:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: decc19467a9d993db3c46ca51f5217cc SHA-1: 2d9ccee34f276031eec3ce8063d505df67f99d35 SHA-256: 24f5e156432490e460746549fbcc8ae5246678ef306151a7723d1011d9359328
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/award?keyword=vcf+to+pdf+free+online PDF link annotation
    • https://rowexajezer.weebly.com/uploads/1/3/0/7/130776500/5610015.pdfIn PDF document text
    • http://biteroz.iblogger.org/35233279611.pdfIn PDF document text
    • https://vubufixul.weebly.com/uploads/1/3/4/7/134708570/donigejukapoxu_fabeliwej_votegur.pdfIn PDF document text
    • http://wofixizufiw.22web.org/xurupigo.pdfIn PDF document text
    • https://tadonajates.weebly.com/uploads/1/3/4/3/134319020/9135005.pdfIn PDF document text
    • http://memubalejegezur.66ghz.com/como_aprender_ingles_gratis.pdfIn PDF document text
    • https://jewotefajasofu.weebly.com/uploads/1/3/2/7/132741420/xumoworesudipu.pdfIn PDF document text
    • http://figedizizexi.22web.org/59136496090.pdfIn PDF document text
    • http://grafoanaliz.ru/navy_e7_advancement_resultsgzqyz.pdfIn PDF document text
    • http://eferevole.com/how_to_keep_dermestid_beetles_warmy2pcv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nufufud.epizy.com/2018_movies_in_tamilrockers._net.pdfIn PDF document text
    • http://lipesomidu.epizy.com/what_is_literary_criticism_how_can_it_be_of_use_in_society.pdfIn PDF document text
    • http://buxodanukesidup.epizy.com/35380578043.pdfIn PDF document text
    • http://bigagapafobari.rf.gd/bibliografia_formato_apa_ejemplos.pdfIn PDF document text
    • http://nejovafejasujob.rf.gd/57890175822.pdfIn PDF document text
    • http://woxowezev.rf.gd/akasa_kusum_full_movie.pdfIn PDF document text
    • http://numivonef.rf.gd/bu_jhansi_examination_form_fees.pdfIn PDF document text
    • http://jejuton.rf.gd/chocolate_movie_video_songs_hd_1080p.pdfIn PDF document text
    • http://vepilezora.epizy.com/anari_film_ka_video_gana.pdfIn PDF document text
    • http://fenozenexow.epizy.com/wufib.pdfIn PDF document text
    • http://gabozimipuz.epizy.com/contract_management_excel_spreadsheet_templates.pdfIn PDF document text
    • http://jupanifoz.epizy.com/walker_buehler_injury_report.pdfIn PDF document text
    • http://zopiselewanut.epizy.com/mizetozut.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_off0000dc2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC2F 4728 bytes
SHA-256: 84e6fde1414046607bfc7481c22c663c068eb89ae5507e31988bcfd967e16a2b
font_01_sfnt_off0000ec5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC5D 10420 bytes
SHA-256: 71a9f06e8f70c8a3fdda7801eccb97d31652949ef9f532058f7f597faa135e5e