Malicious PDF — malware analysis report

Static analysis result for SHA-256 2680d8c5701bdcde…

MALICIOUS

PDF

70.5 KB Created: 2021-02-26 15:56:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 6ae873684e0de4e24b4f5486fb3966e6 SHA-1: 8970052da0902fe188b260f6e5fe135d268ef6b4 SHA-256: 2680d8c5701bdcde717f464a421914be690af22986e88112ea908323c8fecf0f
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://jottigo.ru/award?keyword=purevpn+servers+list PDF link annotation
    • http://pazujiz.mygamesonline.org/pamawu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481155/normal_60208151447d7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391009/normal_5fe29f0286787.pdfIn PDF document text
    • http://porn77.design/50_shades_darker_onlinehus0f.pdfIn PDF document text
    • http://chunyoo.com/sagofipudisekujorejnf69.pdfIn PDF document text
    • http://duwudivusupo.mygamesonline.org/davetara.pdfIn PDF document text
    • http://borejukeluteva.mygamesonline.org/shoei_neotec_ii_splicer_tc-6_l.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445326/normal_601aace1a669a.pdfIn PDF document text
    • https://dupagerenukuxat.weebly.com/uploads/1/3/4/7/134751723/1567d7.pdfIn PDF document text
    • http://nicepics.xyz/45905127847c8p3p.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/tuzakifezara/70815039248.pdfIn PDF document text
    • https://s3.amazonaws.com/bidurudilidujug/auto_transformer_starter_diagram.pdfIn PDF document text
    • https://s3.amazonaws.com/gofiguj/how_to_draw_books_for_11_year_olds.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/usa_states_capitals_abbreviations_print_worksheet.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_off0000d955.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD955 4664 bytes
SHA-256: fd74dbebc5ee80668c71e636567854cb4224184e7a651d16e27b134055cf755b
font_01_sfnt_off0000e94b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE94B 10664 bytes
SHA-256: 0df3a11eb36b0485a5d06cea32a4c4ff8aa585b8bc170614d8fcd03f4b5b687a