Malicious PDF — malware analysis report

Static analysis result for SHA-256 e88c7ad513fda858…

MALICIOUS

PDF

68.1 KB Created: 2021-03-08 12:45:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e3740552e365f9d5b7a398d4c7388ec9 SHA-1: e82d41e92bd1a16901210562071b405b88dbbaee SHA-256: e88c7ad513fda858743c11efa5a15e15daba87dcf306eaf16948a4c0e07ccf62
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://zajinet.ru/award?keyword=algebra+1+textbook+pdf+mcdougal+littell PDF link annotation
    • https://cdn.sqhk.co/zimuteraf/U7hhngg/wazezosuxe.pdfIn PDF document text
    • https://cdn.sqhk.co/zatuwifezub/8YjPXRn/art_therapy_schools_near_me.pdfIn PDF document text
    • http://rumigiwataj.getenjoyment.net/davejo.pdfIn PDF document text
    • https://cdn.sqhk.co/nuduniguwufo/haghijl/sidavagakigag.pdfIn PDF document text
    • http://tijudiwulewanuw.getenjoyment.net/2002_honda_trx_350_parts.pdfIn PDF document text
    • http://wemuwetafivaxe.sportsontheweb.net/fofozugiwuka.pdfIn PDF document text
    • https://cdn.sqhk.co/pevedapev/jgBLoxl/basugomujujefi.pdfIn PDF document text
    • https://cdn.sqhk.co/wufevinek/phg10Ug/basketball_scoreboard_online_app.pdfIn PDF document text
    • https://cdn.sqhk.co/labifikup/jdgccAL/zuwesodutof.pdfIn PDF document text
    • http://ganoget.scienceontheweb.net/what_is_the_latest_version_of_oracle_forms_and_reports.pdfIn PDF document text
    • https://cdn.sqhk.co/jarixizotib/heigdTH/skinseed_for_minecraft_education_edition.pdfIn PDF document text
    • https://widijusadapabi.weebly.com/uploads/1/3/0/9/130969823/8529499.pdfIn PDF document text
    • https://waxebusesu.weebly.com/uploads/1/3/4/7/134770319/a472a.pdfIn PDF document text
    • https://gamidamivagug.weebly.com/uploads/1/3/5/3/135324690/pijatekevenevof_luwagomesagane_mobasuboj_tojixatirukisut.pdfIn PDF document text
    • http://numusuri.22web.org/zenaw.pdfIn PDF document text
    • https://cdn.sqhk.co/tukawezezo/jghajdv/sports_car_racing_meaning_in_urdu.pdfIn PDF document text
    • http://motorutovibipe.sportsontheweb.net/beethoven_sonata_16_imslp.pdfIn PDF document text
    • https://loseseseveru.weebly.com/uploads/1/3/0/8/130813975/sivudupeletefuvukaf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://defisatum.epizy.com/the_informant_2009_imdb.pdfIn PDF document text
    • http://datatoxozapi.epizy.com/catering_menu_design_free.pdfIn PDF document text
    • http://zodiripek.myartsonline.com/download_roms_gba_gameboy_advance_super_mario_land_2.pdfIn PDF document text
    • http://begokev.epizy.com/surah_yaseen_arabic_text.pdfIn PDF document text
    • http://povuputuk.epizy.com/carriers_2009_full_movie.pdfIn PDF document text
    • http://geforagegi.atwebpages.com/pefel.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_off0000ccba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCBA 5608 bytes
SHA-256: 06f548d28b5214ecf7ff8cee925b15cd8e25c753cb6a6adc0be39a82b8ddb412
font_01_sfnt_off0000dfd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFD3 10092 bytes
SHA-256: 8482e2ac41f534d27465c11afe72ef3685cf2661a0daf78597b9647efa6544b5

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