Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad933eb01bec7fc4…

MALICIOUS

PDF

67.5 KB Created: 2021-03-01 06:32:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 8c794bb5823208b675f41503eb983b4b SHA-1: b72b39ad0b29e6ea8a6016569ae72f044ed93743 SHA-256: ad933eb01bec7fc4628661beb717bb1383e9b9938138dbbffd50bd6fba629a5f
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://jottigo.ru/award?keyword=how+to+adjust+rainbird+5000+sprinkler+head PDF link annotation
    • https://cdn.sqhk.co/dujagazatad/hjegcJ3/sprinkle_islands_full_apk_mod.pdfIn PDF document text
    • http://larts.digital/nozanititewigi3n2lk.pdfIn PDF document text
    • http://newyearshop.site/cv_templates_docrc018.pdfIn PDF document text
    • http://avit0.pro/nutirilowasabubakazuvivhxb1r.pdfIn PDF document text
    • https://cdn.sqhk.co/jiwosowo/hiED8Zf/magic_cube_puzzle_3d.pdfIn PDF document text
    • http://wuvejabamivul.iblogger.org/blueberries_for_sal_activity_sheets.pdfIn PDF document text
    • http://copyright-securityx.com/jisitogudisudedumukekemekmqk7j.pdfIn PDF document text
    • http://bemigovoso.iblogger.org/5664844892.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415526/normal_600e487534aaf.pdfIn PDF document text
    • https://cdn.sqhk.co/pananumujo/hhhaadp/72436983922.pdfIn PDF document text
    • https://cdn.sqhk.co/dimumaneda/eNhhZL7/16250220517.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454973/normal_60098fa0ef2f5.pdfIn PDF document text
    • http://remont-kholodilnikov.website/moero_crystal_trophy_guidewbio8.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/bxaiihg/iphone_software_update_itunes_slow.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/tubupejevomo/juzovotowatodosil.pdfIn PDF document text
    • http://bofogaf.rf.gd/information_systems_audit_report.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/jewomiribitixorerafexula.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_off0000ca7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA7A 5644 bytes
SHA-256: 6b3818462bc273b96cfac4e2aa4d6f4353bb1745d3ae43ca51e827411fc34e20
font_01_sfnt_off0000ddbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDBB 10312 bytes
SHA-256: f6113f9f5f5a45184dbfc32b1b513d4859365cfbd04e553f50c2f069348433fb