Malicious PDF — malware analysis report

Static analysis result for SHA-256 68994c0bffcaab31…

MALICIOUS

PDF

72.0 KB Created: 2021-02-26 20:20:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: abe7b0176e0fb32aae77b471e1bfcfd4 SHA-1: 83e76e467a4edbf58a0a73717b66240d81ffb37c SHA-256: 68994c0bffcaab31d296ca98ffaa603fa56734661f2532b01cec139712186d02
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://soxebez.ru/award?keyword=philips+norelco+5000+replacement+heads PDF link annotation
    • https://mimevomakiket.weebly.com/uploads/1/3/4/6/134693464/3b30d36a0.pdfIn PDF document text
    • https://cdn.sqhk.co/kusewupudin/9gfigjc/27862230619.pdfIn PDF document text
    • http://jepewadagamer.scienceontheweb.net/xudeperumexudusesixobexo.pdfIn PDF document text
    • http://zobotalemogi.sportsontheweb.net/organisms_in_an_ecosystem_compete_only_for_food.pdfIn PDF document text
    • http://dumubemajizukov.medianewsonline.com/kuzaj.pdfIn PDF document text
    • https://cdn.sqhk.co/migazajigum/mMMhaje/bixaxifigasavogo.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/hid4Lhc/lightroom_presets_autumn.pdfIn PDF document text
    • https://cdn.sqhk.co/fovipobex/eichgif/monster_hunter_rise_trailer_deutsch.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423137/normal_6031ed7e82b33.pdfIn PDF document text
    • https://serewutedirafam.weebly.com/uploads/1/3/5/3/135339767/kazux.pdfIn PDF document text
    • http://lojapidabud.mypressonline.com/cub_scouts_bear_handbook.pdfIn PDF document text
    • http://riwotivadejud.sportsontheweb.net/python_scripting_tutorial_for_beginners.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454813/normal_602b6c3dedb87.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bifovigavij.myartsonline.com/82770447166.pdfIn PDF document text
    • http://zesafemumibow.myartsonline.com/96878665451.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_off0000d952.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD952 5580 bytes
SHA-256: 021668e36caf0f041e755ab79e35a6a9441575dcdaafe2d7a5a5238803380b1a
font_01_sfnt_off0000ec1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC1A 11060 bytes
SHA-256: 130af5252cda6051bbdf5a40ccdea2339c590c0518bac381d350d0ca00eb1d74