Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3cf66eb8c36463b…

MALICIOUS

PDF

76.9 KB Created: 2021-03-02 14:40:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: f38490b7e5eca829c4d1b04e22fd8e48 SHA-1: 8267b1a5648c52ee09054dd84ab77fd3b5ac4688 SHA-256: d3cf66eb8c36463b894ea0b3618e0e24f8219cc9d43b14cca2110c0ec2af0878
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://maypoin.ru/strik?utm_term=how+to+draw+a+cartoon+girl+on+procreate PDF link annotation
    • http://zopokujejisolan.getenjoyment.net/68047526978.pdfIn PDF document text
    • http://nesobaka3.xyz/xogorudosevofokoxagas7yme.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468837/normal_5ff1064f601cd.pdfIn PDF document text
    • http://jedilinosur.mywebcommunity.org/sudotipemazumugof.pdfIn PDF document text
    • http://liwitesuzemumex.sportsontheweb.net/xemuletaselubabixile.pdfIn PDF document text
    • http://zereteleriw.getenjoyment.net/math_10c_textbook_mcgraw-hill.pdfIn PDF document text
    • https://cdn.sqhk.co/tamupoto/hijojex/football_championship_table_2019.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463792/normal_601598a03771d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387920/normal_5fe84a612b48c.pdfIn PDF document text
    • http://roxelejabojafe.scienceontheweb.net/can_am_outlander_maintenance_cost.pdfIn PDF document text
    • http://tupaxeguna.scienceontheweb.net/planeacion_estrategica_personal.pdfIn PDF document text
    • http://wppremium.org/bank_account_balance_calculator1tlkc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://gixejemazob.myartsonline.com/implicaciones_de_las_inteligencias_multiples_en_la_educacion.pdfIn PDF document text
    • http://fowimifefezujo.myartsonline.com/23263116170.pdfIn PDF document text
    • https://s3.amazonaws.com/suzujewa/nulugeguzolovovivar.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e3d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3D7 4904 bytes
SHA-256: 208cf4000145b735137e08225133e5e4be78a51e04652f3b601773ac0f7466db
font_01_sfnt_off0000f49d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF49D 10468 bytes
SHA-256: d73d84c6eb19e9d4ddcd5c6653de038d97c32f6fb69b3b24b9b34bf39b25a941
font_02_sfnt_off0001186d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1186D 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378