Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2d2834fad2df10e…

MALICIOUS

PDF

68.2 KB Created: 2021-02-23 01:23:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0041338d5d6caea5f185dc15ce472e2f SHA-1: 79e699233173fd91962779cccea2f3f25c847169 SHA-256: b2d2834fad2df10ef9130499e8c3c58e333c5cc4d944f7970f9e80f86882b5a3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/wix?keyword=866+area+code PDF link annotation
    • http://znakomstva69.space/jowawenujap2lxnb.pdfIn PDF document text
    • http://tevfikyuce.xyz/13921838309sh8lh.pdfIn PDF document text
    • https://cdn.sqhk.co/duxadikoti/fjgHheg/56309202613.pdfIn PDF document text
    • http://lngcliente.com/9825843706h5wwq.pdfIn PDF document text
    • https://cdn.sqhk.co/basinasedu/TUhgifK/escape_siren_head_360.pdfIn PDF document text
    • https://cdn.sqhk.co/xivovido/jghih2o/zudozinowex.pdfIn PDF document text
    • http://bigowet.xyz/94820006191bltnj.pdfIn PDF document text
    • http://poradoit1.site/43579993554n0sa.pdfIn PDF document text
    • https://cdn.sqhk.co/komagiju/Rgh6rif/crossing_over_meiosis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446497/normal_601bed0ba72ae.pdfIn PDF document text
    • http://vidclips.design/kajujodanoxipiburivupugadqb311.pdfIn PDF document text
    • https://cdn.sqhk.co/puvivefujef/5FieibZ/49036841229.pdfIn PDF document text
    • http://helpcenterbusiness.xyz/811545236695vu23.pdfIn PDF document text
    • https://cdn.sqhk.co/pugirunosamo/hieYij3/13529550238.pdfIn PDF document text
    • http://form-lnstagramverificationbadge.com/loi_binomiale_terminale_s_formulee56np.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/patilawasu/juvumeli.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_off0000ceab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEAB 4976 bytes
SHA-256: 20269e0e6795aff3e92463427266935d480e6d7ce9027e6d1c9b277d1b7c0f73
font_01_sfnt_off0000dfa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFA3 10768 bytes
SHA-256: 50cc17ea614e56530872c6bd4c8691001bb6192cc06f48d5f192e40ba762857e