Malicious PDF — malware analysis report

Static analysis result for SHA-256 2396e28f2b7b5f3b…

MALICIOUS

PDF

72.4 KB Created: 2021-03-02 12:40:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f68aa8ffad72fee16ba5e7ac70066e7b SHA-1: 2099e3db30f3c0286b5d3d0f54866f31e9ca9bb2 SHA-256: 2396e28f2b7b5f3b11cbd0ea40ee514b4bf0e549a726c8f255fb45b957703301
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://bologen.ru/wix?keyword=grade+4+math+textbook+pdf PDF link annotation
    • https://cdn.sqhk.co/busudijul/gfiahcb/mtn_momo_pay_merchant.pdfIn PDF document text
    • http://tujofifebituxuv.22web.org/pedutebujijozew.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409114/normal_5fd644bc6370e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418379/normal_60216f22cd894.pdfIn PDF document text
    • http://kipokefurur.mygamesonline.org/peg_perego_primo_viaggio_4-35_nido_infant_car_seat_base_in_black.pdfIn PDF document text
    • https://cdn.sqhk.co/givesaxi/ggEbNhi/homescapes_free_coins_ios.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415930/normal_5fe35e50781fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407781/normal_6010fde6d8613.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374198/normal_602c0de1ae195.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451574/normal_5fe8aea06d7d1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457311/normal_5fed3a5a4bea8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475570/normal_5fea28c940409.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368242/normal_60093483ae0ff.pdfIn PDF document text
    • http://bavunexebiri.iblogger.org/lotubibo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474205/normal_5fd26422b9d91.pdfIn PDF document text
    • http://sagadutotituvop.22web.org/monkey_iptv_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454167/normal_5fcc02364b95d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454808/normal_60097ef1caf4b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lusajafimaneru.myartsonline.com/tefofupu.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_off0000dd70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD70 5460 bytes
SHA-256: c8a95d4c1ce7e1923fc6eaea9bbbf0faeb8521773955237a5b33c77acccabfde
font_01_sfnt_off0000efe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFE3 10400 bytes
SHA-256: c09c1b2709b509766c33bdf054bdfb2237ebc45fc7ca386868f631bc351beb7a