Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8b459fe2ee823b6…

MALICIOUS

PDF

66.3 KB Created: 2021-02-21 17:43:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 79261f43799fe944f5f46828bbf0bed7 SHA-1: 9cf291c7bc60a3866814c151511895381b37263f SHA-256: f8b459fe2ee823b6a63945f03c8b36a925af7a8ce9ef0be67404771e03c033ec
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://maypoin.ru/aws?utm_term=how+to+make+shadow+puppets+sesame+studios PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4372721/normal_5ffc9decc24d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496170/normal_602936333517d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467277/normal_60281f2f47180.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393752/normal_5fc5c2d67f5f5.pdfIn PDF document text
    • http://pay-order.info/taylormade_r15_driver_shaft_options8s10i.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373987/normal_5ffc52275b972.pdfIn PDF document text
    • https://cdn.sqhk.co/nepofigiper/eughe56/jivetipefeza.pdfIn PDF document text
    • http://honey-love.ru/tipesuratasenumododa754c4.pdfIn PDF document text
    • http://lajibodomemebev.66ghz.com/12742639976.pdfIn PDF document text
    • https://cdn.sqhk.co/gafokoru/iGijghk/fotojurefufalivadud.pdfIn PDF document text
    • http://xexejidabame.22web.org/aashiqui_songs_zip_file.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460450/normal_5fe6a57968bcd.pdfIn PDF document text
    • https://cdn.sqhk.co/ketejeti/ehdywha/42198732148.pdfIn PDF document text
    • http://reactivascotia2020.com/homolytic_fission_chemguidehapol.pdfIn PDF document text
    • https://cdn.sqhk.co/vetejevibas/KgjGicj/73122458405.pdfIn PDF document text
    • http://reduslim-italiaoficial.site/fibinisijaxalaxisazatipvffq.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/wokesabisevo/39354488615.pdfIn PDF document text
    • https://s3.amazonaws.com/zonivezada/32132865676.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_off0000c833.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC833 5188 bytes
SHA-256: 8953d2995d39ccc11aed03e7022e22cbda6b903e7426cf728b37b35ef85b021a
font_01_sfnt_off0000d9c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9C2 10068 bytes
SHA-256: e4f08438863878b8cb0888863bc5736d4a5e708e080fad22d2715359b1aa4f68