Malicious PDF — malware analysis report

Static analysis result for SHA-256 c123de9e3a956c10…

MALICIOUS

PDF

69.9 KB Created: 2021-02-22 03:19:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e260e9466c1a8041f127d135cce0e685 SHA-1: 9ad907069014c0608150b65d0a103afd6e445d30 SHA-256: c123de9e3a956c104444580e39b60b47b58a0fa05f77648564c7423e60587173
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/wb?keyword=how%20to%20use%20dos%20commands PDF link annotation
    • http://poradoit2.site/20442033073fzhjm.pdfIn PDF document text
    • https://wivoximuvekobug.weebly.com/uploads/1/3/4/4/134473281/3262912.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446170/normal_5fe15dcfe6b9a.pdfIn PDF document text
    • http://uaportal.site/checkpoint_firewall_44000_datasheetm8qz7.pdfIn PDF document text
    • http://fsfsfd.xyz/bpsc_nursing_result_20185tzld.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421767/normal_5fef01396c8ff.pdfIn PDF document text
    • http://microbladingeyebrowsdallastx.com/9p5la.pdfIn PDF document text
    • https://cdn.sqhk.co/bafiweba/7T1iiTz/kutitesaj.pdfIn PDF document text
    • http://doworevo.22web.org/sig_sauer_p220_nightmare_review.pdfIn PDF document text
    • http://hytri.com/newugogiredesamilanezeesyz5.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/ronatiduzoxij/jasper_reports_odoo_10.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/51539393843.pdfIn PDF document text
    • http://wezikadedikenev.epizy.com/kindle_d00901_stuck_on_empty_battery_screen.pdfIn PDF document text
    • http://labapok.rf.gd/94399373889.pdfIn PDF document text
    • http://waduxixefe.rf.gd/ariens_riding_lawn_mower_manual.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_off0000d550.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD550 5012 bytes
SHA-256: 760e707dbb7d2eb73c0b27eebcbd04e5c13ff1c2728a3acd4ccf521af7f35d73
font_01_sfnt_off0000e658.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE658 10752 bytes
SHA-256: cd48ded9de0d7284e95dc90ee01d4844b7b3ab9f2c6514cea53966ea1f899d87