Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c85f49dc2fce807…

MALICIOUS

PDF

75.2 KB Created: 2021-02-27 08:50:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 30f2594b020a3445b5804b0dcacdd315 SHA-1: fb479f9d669a1a9bdb8f226b559ba2ab88ea7f46 SHA-256: 0c85f49dc2fce807e6dce0352ae0470c044d0f3645bb233fc1f977e7a6d32cf2
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://botokaw.ru/123?utm_term=requirements+to+work+as+a+social+worker+in+the+uk PDF link annotation
    • http://pufegusikozig.22web.org/wedding_budget_template_for_excel_2013.pdfIn PDF document text
    • http://arnautmebel.ru/child_care_benefit_formqitzr.pdfIn PDF document text
    • http://varuzajuv.22web.org/dodge_challenger_hellcat_manual_review.pdfIn PDF document text
    • http://mon-cmso.best/jelupemudajenuwolulqdzzp.pdfIn PDF document text
    • http://nanamojuvimujo.medianewsonline.com/best_interior_design_schools_in_houston.pdfIn PDF document text
    • http://safijejog.mygamesonline.org/philips_system_one_cpap_manual.pdfIn PDF document text
    • http://rosutob.getenjoyment.net/what_are_the_financial_baby_steps.pdfIn PDF document text
    • http://lenuvivureropi.scienceontheweb.net/is_cyberpunk_2077_exclusive_to_xbox.pdfIn PDF document text
    • http://vumexovuvelafe.medianewsonline.com/6089865634.pdfIn PDF document text
    • http://fovikoxesaweziz.medianewsonline.com/how_to_open_pebble_watch.pdfIn PDF document text
    • http://detonic-ufficiale.website/728278370661mz94.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/fifuto/43341804521.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/cedexis_cdn_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/astrosage_kundli_software_free.pdfIn PDF document text
    • http://muzasedek.epizy.com/popibogugoxevaga.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_off0000ea3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA3B 5328 bytes
SHA-256: ead31216f5114af75b52c837c9bc99cd9354eb2f875913c034210e2112f0fc7b
font_01_sfnt_off0000fc46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC46 10364 bytes
SHA-256: ae6f982007265282d30ca052157b578659c65b901acdb7e0677987cc40316837