Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6f9a071522112ac…

MALICIOUS

PDF

71.1 KB Created: 2021-03-01 08:50:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ff85e9ade1554ce8da6a7c37dee04898 SHA-1: 3fee4a97d60cafaff3a5dd7da83298ae370dcf5c SHA-256: e6f9a071522112ace0f4f3d409ca3095efa9e4079958ad43812cf4485297c387
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://jottigo.ru/award?keyword=dunkin+donuts+whole+wheat+bagel+nutrition+facts PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4480732/normal_60158a0d86f95.pdfIn PDF document text
    • https://cdn.sqhk.co/texirova/rMjjjix/gupevema.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485810/normal_6020a3cbd16c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367310/normal_600c16629ca89.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470540/normal_5fda398bd02d3.pdfIn PDF document text
    • https://cdn.sqhk.co/fepexeguma/jfwheR0/7440064287.pdfIn PDF document text
    • https://cdn.sqhk.co/dasofuduveje/ifqheTh/93844826991.pdfIn PDF document text
    • http://jofufunobek.sportsontheweb.net/english_grammar_betty_azar_fifth_edition.pdfIn PDF document text
    • http://munasimowijuxi.getenjoyment.net/construction_assistant_project_manager_jobs_houston.pdfIn PDF document text
    • https://cdn.sqhk.co/jimumakevaji/Wiigeif/xunoligokukuzipovaxena.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/serogajugomiji/envision_math_grade_2_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/bedingte_formatierung_bertragen_excel_2016.pdfIn PDF document text
    • http://kozogasivufi.myartsonline.com/taguva.pdfIn PDF document text
    • http://wutejaxevewef.myartsonline.com/19818644124.pdfIn PDF document text
    • https://s3.amazonaws.com/vavejijitatofu/dryer_sheets_repel_bed_bugs.pdfIn PDF document text
    • http://tevefetilojas.atwebpages.com/sanyo_smart_tv_price_philippines.pdfIn PDF document text
    • http://lusajafimaneru.myartsonline.com/the_forever_war_joe_haldeman_review.pdfIn PDF document text
    • http://nununad.myartsonline.com/xujawivoguwupomawef.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/ikea_bed_sheets_australia.pdfIn PDF document text
    • https://s3.amazonaws.com/safago/r._h._charles_the_apocrypha_and_pseudepigrapha_of_the_old_testament.pdfIn PDF document text
    • http://jabodegodonirad.atwebpages.com/what_companies_have_closed_due_to_covid_ukraine.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_off0000d75c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD75C 5580 bytes
SHA-256: c1c9b3d17520c2ed7d8d4e5e125b8c44e6c1ac7c64044b316d616afdb2f20365
font_01_sfnt_off0000ea6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA6C 10636 bytes
SHA-256: 2a44b242adc340ec3de7add302ff0f1d068ebfdb8d7ab6c2898824334e29bb6d

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