Malicious PDF — malware analysis report

Static analysis result for SHA-256 c07814e5560a2c39…

MALICIOUS

PDF

72.1 KB Created: 2021-03-01 23:48:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9c47898635a4735f802afdda8cd06e31 SHA-1: 1094bf73e30336bc291b7f9cf07ffc4595dcb054 SHA-256: c07814e5560a2c39f8e60d65d3236fc53a6019f79c349e3bb8a0719b969957f9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://xajibur.ru/wix?keyword=isotopes+protons+electrons+neutrons+and+ions+worksheet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4404292/normal_60168a73f0f4b.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/ciJifgg/90961913750.pdfIn PDF document text
    • http://koreanluxe.com/bollywood_latest_movie_hd_2019rtjvd.pdfIn PDF document text
    • http://topshops.website/miamisburg_police_department_crash_reportstej5h.pdfIn PDF document text
    • http://remontvorot24.com/millimeter_wave_wireless_communicationsw13em.pdfIn PDF document text
    • https://cdn.sqhk.co/sejujona/hghxkHx/ragididukiwipovobinal.pdfIn PDF document text
    • https://cdn.sqhk.co/fabukujeb/hcBQmIN/easy_keyboard_christmas_songs_with_letters.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416132/normal_5fcc5584a73df.pdfIn PDF document text
    • https://cdn.sqhk.co/vitimosugu/jCiiNif/65320465053.pdfIn PDF document text
    • https://cdn.sqhk.co/tememukafosu/XLv0Nd8/29771044856.pdfIn PDF document text
    • http://100naturals.fun/what_is_heir_of_fire_aboutuxhok.pdfIn PDF document text
    • https://cdn.sqhk.co/vefusujix/KElgggI/aaa_roadside_assistance.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448536/normal_602519a79c7aa.pdfIn PDF document text
    • https://cdn.sqhk.co/rutunidosaw/5Yc2jig/pewdiepie_s_tuber_simulator_wiki.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459059/normal_5fe739764c673.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/89033883570.pdfIn PDF document text
    • https://s3.amazonaws.com/wejuvono/android_paywall_bypass.pdfIn PDF document text
    • https://s3.amazonaws.com/wukevirenesu/online_for_passport_form.pdfIn PDF document text
    • http://jajojamoxarug.epizy.com/50264986147.pdfIn PDF document text
    • http://lagarudu.epizy.com/checkpoint_appliance_4600_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/zutetidavawena.pdfIn PDF document text
    • http://zagusax.rf.gd/are_timex_watches_made_in_china.pdfIn PDF document text
    • http://kepatuzazavew.epizy.com/82533390024.pdfIn PDF document text
    • http://dasabenanej.epizy.com/zigafuvuberodoviwi.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_off0000dd40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD40 5256 bytes
SHA-256: 8673e283e473408539ff919d6f8c2a2ea3fb0077fdadb26d4deb10a82218472e
font_01_sfnt_off0000ef2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF2B 10280 bytes
SHA-256: 1bdb7476aa1f9285f6a44f632d65ef717ead705a6fcea8162bcf41c30e3af1b8

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