Malicious PDF — malware analysis report

Static analysis result for SHA-256 288754bbba3cac50…

MALICIOUS

PDF

70.6 KB Created: 2021-03-03 09:33:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 707d96a35455f3389f42568b9ab6c272 SHA-1: aa0b0cec3fb5d609cea20afbd41529c660c9994d SHA-256: 288754bbba3cac50fc620496c010c54932f589fccfa270837e50047c1009107e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://pelibifir.ru/wix?keyword=bill+nye+earth%2527s+crust+answers PDF link annotation
    • https://cdn.sqhk.co/vewukiziwemi/djiI9jh/zifoxivaxetekufab.pdfIn PDF document text
    • https://tesegedoveveda.weebly.com/uploads/1/3/4/8/134891870/javeseg.pdfIn PDF document text
    • https://cdn.sqhk.co/wikaraxixi/cihyGgH/weaphones_gun_sim_free_vol_1_full_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/velabolo/fUjecig/dalubaf.pdfIn PDF document text
    • http://masarutaboranar.iblogger.org/mackinac_bridge_weather_report.pdfIn PDF document text
    • https://nezovudaposuru.weebly.com/uploads/1/3/0/9/130969726/pifusupisaver_sapitipokip.pdfIn PDF document text
    • http://wavasesinile.22web.org/37344586118.pdfIn PDF document text
    • http://wuwodijutorem.iblogger.org/c._f._o_full_form.pdfIn PDF document text
    • https://kakituku.weebly.com/uploads/1/3/4/5/134589995/xatilogibedo_giwovima_waxufotaniliw.pdfIn PDF document text
    • http://dobanojuwelog.22web.org/kindle_model_d00901_factory_reset.pdfIn PDF document text
    • http://vesibigezedenu.iblogger.org/annual_report_apple_company.pdfIn PDF document text
    • http://kigowamukidiba.iblogger.org/perajopuzaforaxamoloduj.pdfIn PDF document text
    • https://cdn.sqhk.co/bexefoboxevi/GibZswD/filojizeninakuboxigipafi.pdfIn PDF document text
    • https://fitulepam.weebly.com/uploads/1/3/0/8/130874207/4265070.pdfIn PDF document text
    • http://wuduwoguto.22web.org/email_apple_id_daily_report.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://bapaxofobawob.rf.gd/nowisusowinogapokuz.pdfIn PDF document text
    • http://totexamivemasal.epizy.com/6344559445.pdfIn PDF document text
    • http://joriboka.epizy.com/dj_wale_babu_cartoon_song_mp4.pdfIn PDF document text
    • http://metivatozu.epizy.com/68264328578.pdfIn PDF document text
    • http://dujabonesisu.rf.gd/26336006185.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD06 4936 bytes
SHA-256: 6d4978df38835556808808b8588a85c9a76cc6d9bf21a33b13f3002785ae4b86
font_01_sfnt_off0000ddd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDD5 9684 bytes
SHA-256: 7b07d555496f11ffec76a8fcce751174c9d17662b9c38f436a5e89b017e91715
font_02_sfnt_off0000ff1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF1F 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3