Malicious PDF — malware analysis report

Static analysis result for SHA-256 9767d9c81dcd0e62…

MALICIOUS

PDF

72.5 KB Created: 2021-03-04 17:05:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a57f9ad55e937c7cff40fa38c9e72979 SHA-1: 759a38791554102ebed01135e9b2c25da00ff0a3 SHA-256: 9767d9c81dcd0e62306b036fba13d1a8ba461dac076efc46c52a4529bd9446c8
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://gimoguvi.ru/award?keyword=orgrimmar+mount+vendor+bfa PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4489415/normal_601feea05d2b2.pdfIn PDF document text
    • http://suzofovolavuk.scienceontheweb.net/lezalerin.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500887/normal_5fe721ec1e293.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393506/normal_6038d634d8beb.pdfIn PDF document text
    • https://cdn.sqhk.co/saboxiwago/fWtGgek/candy_crush_jelly_saga_mod_apk_unlimited_all.pdfIn PDF document text
    • https://cdn.sqhk.co/tavikagisato/chiyWsH/20212309504.pdfIn PDF document text
    • http://kaxavetaxudu.mywebcommunity.org/66196039481.pdfIn PDF document text
    • http://verifybadgehelp.com/what_is_the_algorithm_to_solving_a_rubiks_cubeg1qb6.pdfIn PDF document text
    • http://gakukuketisalum.scienceontheweb.net/zanuzu.pdfIn PDF document text
    • http://reduslimitaly-ufficiale.site/danesabtbs2a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383805/normal_5ff65645bcb5e.pdfIn PDF document text
    • http://storezone.info/5737955337wkvgo.pdfIn PDF document text
    • http://detonic-ordina.website/3d_car_designing_software9fnbt.pdfIn PDF document text
    • http://welitizenowem.mywebcommunity.org/core_java_interview_questions_download.pdfIn PDF document text
    • https://cdn.sqhk.co/niwuruba/l81gjjb/budget_partner_commander_decks.pdfIn PDF document text
    • http://lorewipa.scienceontheweb.net/what_are_3_facts_about_the_declaration_of_independence.pdfIn PDF document text
    • http://nosinoski.shop/david_ramsey_financial_plannerbwo20.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366399/normal_5fedf47a605d0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://04934832-22f3-474e-96de-b9d593e92251.filesusr.com/ugd/f390e7_69594441f7f4433ba8a1ca6c21002cd2.pdf?index=trueIn PDF document text
    • https://41fe7446-7195-45c8-906d-de5e784989f9.filesusr.com/ugd/e02969_55acab2524704f989b2c67120288bfc8.pdf?index=trueIn PDF document text
    • https://e82ff0bd-cb1a-4782-8b92-0a0fb7657660.filesusr.com/ugd/d17951_3e1f221b98eb48f3a8327becdea09898.pdf?index=trueIn PDF document text
    • https://a54de82d-0003-4787-801b-d7ee719c780a.filesusr.com/ugd/8d57bd_2958c8ddf25e4c4cb5f38ad130930a6a.pdf?index=trueIn PDF document text
    • https://f37c3615-20b0-4e70-b1e7-2acf34113780.filesusr.com/ugd/1e533a_cc8ef04261d24ed5bbe2bb8ed1deeee5.pdf?index=trueIn 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_off0000dc5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC5C 5244 bytes
SHA-256: a0a6d4f5ec9c122223275a70893255ba1779bf09d4cbeb81c632007ff288e143
font_01_sfnt_off0000ee20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE20 11588 bytes
SHA-256: cb1d23b92c2424d6538bf944cee88a2fa8dba790eabb6fdf262be1874ad9298a

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