Malicious PDF — malware analysis report

Static analysis result for SHA-256 006ffde218c19d40…

MALICIOUS

PDF

76.7 KB Created: 2021-02-25 11:07:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d694867a52485f4fffc9c7fe825475ee SHA-1: 0085dd43c306c81535ea7a96911ea5d7dcc5c131 SHA-256: 006ffde218c19d40ac3bd2c9b33c667600501f5fd60ff27f16184725789ba433
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://leonvi.ru/award?keyword=mbti+compatibility+with+infj PDF link annotation
    • http://reform-st.ru/fadipotutogezikisupijusewda2lj.pdfIn PDF document text
    • http://roxaresasupuke.iblogger.org/tufizigutagabarodogevamu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390328/normal_5fde5181a73cc.pdfIn PDF document text
    • http://bridgecommerce.com/36015390305p26du.pdfIn PDF document text
    • https://cdn.sqhk.co/tedigedubemi/JjaKjQf/color_linkedin_css.pdfIn PDF document text
    • https://cdn.sqhk.co/xanuramalu/4ZbUrlE/65976217334.pdfIn PDF document text
    • http://domavera.ru/melhores_cursos_de_ingles_online_pagosnkw68.pdfIn PDF document text
    • https://faxiwogofu.weebly.com/uploads/1/3/0/9/130969634/tifusexukixabeniwulu.pdfIn PDF document text
    • https://cdn.sqhk.co/lizubenesowi/9hhhhlI/1834733006.pdfIn PDF document text
    • https://jividakole.weebly.com/uploads/1/3/6/0/136090299/1291460.pdfIn PDF document text
    • https://cdn.sqhk.co/bimonabozo/Ch117jc/73795816837.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vekubuj.rf.gd/akc_foreign_dog_registration_form.pdfIn PDF document text
    • http://texatopewewew.epizy.com/suwokobiromilod.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/vumolegizevufexova.pdfIn PDF document text
    • http://nojuvuxu.rf.gd/instrumentos_para_la_recoleccion_de_datos_en_una_investigacion_cualitativa.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_off0000f0bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0BF 5396 bytes
SHA-256: 818e6cca20a2f5ecd8793d04a989e0149c2571184b35b9d952ec44ea23e9ce91
font_01_sfnt_off00010322.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10322 10192 bytes
SHA-256: a9e32782eb0567423fe60197fc6017f635134e1a5a1f459040fb127271748058