Malicious PDF — malware analysis report

Static analysis result for SHA-256 417d90b81ae51e74…

MALICIOUS

PDF

71.9 KB Created: 2021-02-21 16:22:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4b2af54f4ced11076a28a7ba8237c552 SHA-1: 27fc6e7dcc141834c66ee45050f4c463ac159627 SHA-256: 417d90b81ae51e740359c90ecee19658710337f63e1b0a42bf68119706f7b2e5
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://bologen.ru/wix?keyword=apk+mobdro+iphone PDF link annotation
    • https://ralanuda.weebly.com/uploads/1/3/0/7/130775203/xoxenemuseted.pdfIn PDF document text
    • https://gagakulusete.weebly.com/uploads/1/3/5/3/135326625/rebumeluporafobatil.pdfIn PDF document text
    • http://it50life.pro/five_little_ducks_sheet_musichj0vn.pdfIn PDF document text
    • https://cdn.sqhk.co/kixobaza/gcljfIH/70368291720.pdfIn PDF document text
    • http://twirlini.com/kargoz_warlock_leveling_guideegpb9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419218/normal_5fe70eb52d09f.pdfIn PDF document text
    • https://cdn.sqhk.co/sixatowitur/Rgiggy1/pong_master_mod_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477147/normal_5fc5cfd2e9be5.pdfIn PDF document text
    • https://cdn.sqhk.co/lijedubejop/e1wGq6W/lesekizumurigewamiwilila.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377128/normal_5fec25b465b64.pdfIn PDF document text
    • https://cdn.sqhk.co/sazoteva/haKjahl/vefuzalananubuwagelemafed.pdfIn PDF document text
    • https://widosutolitidaf.weebly.com/uploads/1/3/4/8/134847614/piwuvojinojexiwi.pdfIn PDF document text
    • http://loveantravel.xyz/cash_loan_agreement_template7cbso.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365619/normal_5fda6c813fa3d.pdfIn PDF document text
    • http://sosed.market/avaya_ip_office_500v2_control_unitfa3h3.pdfIn PDF document text
    • https://fafafavavilaba.weebly.com/uploads/1/3/4/8/134893162/porumimeliziwak.pdfIn PDF document text
    • https://cdn.sqhk.co/wekababu/gfqziav/tugevibupe.pdfIn PDF document text
    • http://fastpysystem.online/69767885226c2dm4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://minegavanifur.rf.gd/free_excel_project_plan_template_with_gantt_chart.pdfIn PDF document text
    • http://nobajoxeruxepin.rf.gd/website_to_shutterstock_images_without_watermark.pdfIn PDF document text
    • http://madujiketowulat.rf.gd/reported_speech_exercises_online_b2.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_off0000dc33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC33 4972 bytes
SHA-256: 4f59e3f8dec678ff0629f3b3bc814b0cfb13602b6e89dfde329b9fd163add2fc
font_01_sfnt_off0000ece5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECE5 11028 bytes
SHA-256: 7d7d3e889fd87892c8d8f1bdd6229316c09d678a9fab3f1d6e4236cab7d992ac

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