Malicious PDF — malware analysis report

Static analysis result for SHA-256 bec64001f816da9a…

MALICIOUS

PDF

64.4 KB Created: 2021-02-14 06:53:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2030a6a1f14e66cf67becaeac611f3fb SHA-1: b7c551c7d01521f86430a5686720360aa3e670ae SHA-256: bec64001f816da9abc6bc53b85b691683b34d8dbc67e2544789081bafda605fb
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/wb?keyword=calculatrice%20scientifique%20apk%20gratuit PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4450631/normal_5fcff48deffde.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490266/normal_5fdc06889b1e3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417530/normal_5ff3f51883c9c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488137/normal_5fd62b1808905.pdfIn PDF document text
    • https://cdn.sqhk.co/naboxolat/jb51CGO/foosball_winner_rules.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446038/normal_600b948aea015.pdfIn PDF document text
    • https://cdn.sqhk.co/gujurolekuma/iFvsmFa/bavixomebopufuse.pdfIn PDF document text
    • https://cdn.sqhk.co/duxadikoti/haQDhf2/battle_bees_royale_apk.pdfIn PDF document text
    • https://zibizunazop.weebly.com/uploads/1/3/2/7/132710786/aa6a3.pdfIn PDF document text
    • https://guzesunidami.weebly.com/uploads/1/3/0/8/130873942/325c74743.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419193/normal_5ffb69934bef2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zekakodususebu.epizy.com/descargar_whatsapp_plus_azul_apk.pdfIn PDF document text
    • http://takiwasi.rf.gd/icse_class_10_2020_datesheet.pdfIn PDF document text
    • http://rewerikipij.rf.gd/93644145327.pdfIn PDF document text
    • http://jajoxutevo.epizy.com/nutricion_parenteral_definicion.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_off0000bda0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDA0 5276 bytes
SHA-256: 46a1273bd4d37d95959f858092b189a478b1aab0055b1179fce938c7856a3028
font_01_sfnt_off0000cfa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFA3 10808 bytes
SHA-256: 379b796441978931a0477042f889f6afc23efc971040b47d276982f9bc637013