Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c8468a97f96853d…

MALICIOUS

PDF

71.9 KB Created: 2021-01-23 10:39:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: e8c7c7a86875a5903d3a6aefd03b9b82 SHA-1: caaa69bac58fbb8864db08423f1dfcd349ed1735 SHA-256: 6c8468a97f96853d7b6bf206459bb28bb9d95e30dde2db6b3ee018583d6094e2
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wb?keyword=fastest%20cars%20under%2020k%202020 PDF link annotation
    • https://mokoluwi.weebly.com/uploads/1/3/4/5/134595511/dejezo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420907/normal_60048d99a3c93.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421360/normal_5fe4461357de7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453754/normal_5fde5dec8afb7.pdfIn PDF document text
    • https://padobijitoxu.weebly.com/uploads/1/3/1/0/131070591/6263313.pdfIn PDF document text
    • https://gifetapajuloper.weebly.com/uploads/1/3/4/6/134682222/8005419.pdfIn PDF document text
    • https://cdn.sqhk.co/nomazotesi/heDih8P/game_center_apk_download_android.pdfIn PDF document text
    • https://wawenefawopi.weebly.com/uploads/1/3/4/4/134494228/nutasere.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/viboxikuz/facebook_icon_eps.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/rijanofagujoxipiki.pdfIn PDF document text
    • https://s3.amazonaws.com/posaxugidut/66477317938.pdfIn PDF document text
    • http://kazaxese.epizy.com/naruto_online_launcher.pdfIn PDF document text
    • http://gipatoxusopupos.epizy.com/25417006797.pdfIn PDF document text
    • http://supetok.rf.gd/lusugepafigikobupaje.pdfIn PDF document text
    • http://teboseru.rf.gd/xabegafederawawavojeja.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_off0000de75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE75 5196 bytes
SHA-256: ee1ecced327e2eabddd222e448f025eac999087a320ef5b57ec129ae6daa242c
font_01_sfnt_off0000f031.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF031 10176 bytes
SHA-256: 2eec254267b38a36d821c4e697064181867357237d17ebc433ec313193b1582f