Malicious PDF — malware analysis report

Static analysis result for SHA-256 55ee2ed9bdd0a8a1…

MALICIOUS

PDF

71.2 KB Created: 2021-03-01 12:44:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 495c70a348ad078179340ec492ed4084 SHA-1: da6c509cfbdba86dc8da81355a79fc57fd3016fd SHA-256: 55ee2ed9bdd0a8a19262e17f9082cefcf518c20efd15a59bfdfd16e4251b80c4
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://botokaw.ru/award?keyword=juego+de+el+hombre+ara%25C3%25B1a+3 PDF link annotation
    • https://cdn.sqhk.co/jurugaguvedu/hgwjdjj/vedic_maths_tricks_for_multiplication_2_digits.pdfIn PDF document text
    • https://cdn.sqhk.co/wepurodapike/jasnAgc/fatafuxim.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446147/normal_602b423fb086c.pdfIn PDF document text
    • https://cdn.sqhk.co/givesaxi/xhi1ryU/25683497427.pdfIn PDF document text
    • http://rexuwoxaga.sportsontheweb.net/how_to_become_height_without_exercise.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412584/normal_60001533496c0.pdfIn PDF document text
    • https://cdn.sqhk.co/kafodarifab/hcKijgj/guess_the_disney_character_picture_quiz_printable.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464541/normal_6029e2ef23cd0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465149/normal_5fe8f8022dbef.pdfIn PDF document text
    • http://wurigakisedepov.iblogger.org/paulo_coelho_the_alchemist_quotes.pdfIn PDF document text
    • http://buwubaled.mywebcommunity.org/prince_caspian_and_susan_kiss_scene.pdfIn PDF document text
    • http://kozizukexepuf.22web.org/gujibidipilab.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vukenebavez.rf.gd/ntse_2018_sat_answer_key.pdfIn PDF document text
    • http://xorisok.epizy.com/firefox_47._0._1_free.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_off0000d698.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD698 5568 bytes
SHA-256: 4e4e27af01717b10f6ddc12c6d89200a45fd4386e4addfacce855ef4e0a0aabb
font_01_sfnt_off0000e916.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE916 11228 bytes
SHA-256: acfffa5d2d2645127aeb64ec76b8a3de474a407217440f43ebb85a8932643571