Malicious PDF — malware analysis report

Static analysis result for SHA-256 11ead1314dcf9663…

MALICIOUS

PDF

72.9 KB Created: 2021-02-28 03:50:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8fa66c4e317dc054fdbeac49cdc81667 SHA-1: a9ba17ae7eca13a15e9a81b8ddff618d85913e20 SHA-256: 11ead1314dcf96630543e281a022fa8beca79a125fe0f1c679e873b5e3e46897
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://xajibur.ru/wix?keyword=manual+for+keurig+single+cup+coffee+maker PDF link annotation
    • https://lolinukopo.weebly.com/uploads/1/3/4/3/134351434/zabube_zutavezakaf_magetasare_nigoduvaxub.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484610/normal_601997f00de14.pdfIn PDF document text
    • http://wirobigi.medianewsonline.com/66924779297.pdfIn PDF document text
    • https://totidulabi.weebly.com/uploads/1/3/1/6/131606487/kudaberanawuxaw.pdfIn PDF document text
    • http://wedipum.mygamesonline.org/interior_angles_of_a_triangle_worksheet.pdfIn PDF document text
    • http://bometaximom.scienceontheweb.net/best_budget_dd_wrt_router_2020.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/lodazojamuva/diligence_free_worksheets.pdfIn PDF document text
    • http://jumepenitujox.atwebpages.com/intex_pool_replacement_filter_pump.pdfIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/jibofe.pdfIn PDF document text
    • https://s3.amazonaws.com/nitatotol/gana_achu_new_songs_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/coleccion_harry_potter_libros_en_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/redegelesibif/call_of_duty_mobile_apk_plus_data.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_off0000dfec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFEC 5404 bytes
SHA-256: abe31faf0931221225dd69c2d5d18d65bccf3ca80b458c170cbda53e605a1d1b
font_01_sfnt_off0000f255.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF255 10684 bytes
SHA-256: fedd679d6222316adebc16ae807074bd9b4389cc498a7962dce38eba63c32951