Malicious PDF — malware analysis report

Static analysis result for SHA-256 6972a896f4701863…

MALICIOUS

PDF

72.4 KB Created: 2021-02-10 23:29:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 083360a8f7950cd3878c510cd094c0b7 SHA-1: 1b0541e8476263882e29bf2d916f04449d9e3612 SHA-256: 6972a896f4701863e9813f5a14f102bad2801bc00eed83171978cecaf6c25add
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://druttle.ru/wb?keyword=fire%20damper%20drop%20test%20sheet PDF link annotation
    • https://poxapoxidofex.weebly.com/uploads/1/3/4/0/134016688/8947638.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385010/normal_5feb946d0f8aa.pdfIn PDF document text
    • http://bcpreactiva-enlinea.com/physics_investigatory_projects_for_class_12_cbseyzszx.pdfIn PDF document text
    • https://cdn.sqhk.co/jawakagufu/gjgiIWQ/royal_caribbean_international_number_of_ships_by_class.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375352/normal_601a29e4f141a.pdfIn PDF document text
    • https://cdn.sqhk.co/sujutowupolu/jf5CUoV/jekexuxigavor.pdfIn PDF document text
    • https://juputifewusa.weebly.com/uploads/1/3/4/4/134435955/473179.pdfIn PDF document text
    • http://powerpoint4you.ru/79529809332vj2i.pdfIn PDF document text
    • https://cdn.sqhk.co/lulufebexefe/rnChbhb/las_vegas_bus_tour_night.pdfIn PDF document text
    • http://shtampshop.ru/surah_yasin_dan_doawxdbp.pdfIn PDF document text
    • https://cdn.sqhk.co/padasagam/2jiQugf/vector_full_apk_mod_free_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448548/normal_5fee521eef2bd.pdfIn PDF document text
    • https://cdn.sqhk.co/vomisape/BZFgfjf/super_soccer_champs_2019_apk_uptodown.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/viboxikuz/be_with_you_subtitles_free.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/whatsapp_unblock_apk_uptodown.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_off0000dfd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFD1 5120 bytes
SHA-256: 5bb1c83c2637947d86f1818b51df2e4cc49b2de884b33ef6cedd9f1e7f9c6a92
font_01_sfnt_off0000f10f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF10F 10488 bytes
SHA-256: 9aad1abc026d18ae5649c67b74fbae9e485b74390e08d67033d7f9c358d5cd3c