Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2c211ff91838ddb…

MALICIOUS

PDF

65.8 KB Created: 2021-02-24 22:36:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4c73bb1e3bce8f5dd4e02b59a687800d SHA-1: 5b9e3e211f71021c218182ce59dfc548c5fd9e30 SHA-256: c2c211ff91838ddb7c68c872e50401e2e922c87732b2e442cee7da9ffa4648b6
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://seumenha.ru/award?keyword=acorde+d%252Fc+piano PDF link annotation
    • https://notogelomabini.weebly.com/uploads/1/3/1/4/131406068/68208.pdfIn PDF document text
    • https://nugilura.weebly.com/uploads/1/3/5/3/135317706/peluxupa.pdfIn PDF document text
    • http://springwin.space/259075411375k3du.pdfIn PDF document text
    • https://cdn.sqhk.co/kisunika/hhjzjj2/churrascaria_favo_de_mel_goiania_preco.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388279/normal_5ff925b8d2e27.pdfIn PDF document text
    • https://luxoxika.weebly.com/uploads/1/3/4/8/134899107/mumajozabedup_laxegujizojoru.pdfIn PDF document text
    • https://senamevab.weebly.com/uploads/1/3/4/6/134689233/315269.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369904/normal_5ff952faa871a.pdfIn PDF document text
    • https://cdn.sqhk.co/minofavazu/ongfLIK/pubs_near_chatsworth_house.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480383/normal_601dd72b3245d.pdfIn PDF document text
    • https://bobefadapuxat.weebly.com/uploads/1/3/4/8/134858353/turupusufevap-zigumiferadom-bixamogeg.pdfIn PDF document text
    • https://pabidiwamudobav.weebly.com/uploads/1/3/5/2/135299897/a636cf8b26766.pdfIn PDF document text
    • https://cdn.sqhk.co/valipovu/hciajcN/wikimed_wikipedia_medical_offline.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450351/normal_5fcaecb771a4f.pdfIn PDF document text
    • https://cdn.sqhk.co/riraxizilob/gQgcxl1/ipad_keyboard_control_key.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000c613.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC613 4884 bytes
SHA-256: 506bc9fb4641d6dde989bcb322e2a1c4892196f790d5feb4f719dd2ea4d39d89
font_01_sfnt_off0000d6c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6C2 10580 bytes
SHA-256: 82d094849ea05561618f4dc95c7097488f6fd808e39372aa80ed4673fd374fde