Malicious PDF — malware analysis report

Static analysis result for SHA-256 515155e2cc9c95bb…

MALICIOUS

PDF

74.5 KB Created: 2021-03-21 08:44:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 160280e27ed89d610ba9aadc5e4092fa SHA-1: d2407f0f76c2579094a8fb1d921c7b57b660d916 SHA-256: 515155e2cc9c95bb234880d6f268355619db732333f0ed3a16a2a1d3dccba1cb
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, many pointing to disposable domains and link farms, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document, likely a spearphishing attachment designed to redirect users to malicious sites.

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/strik?utm_term=camp+chef+pellet+grill+beer+can+chicken+recipe PDF link annotation
    • http://vizilirudigub.getenjoyment.net/sikefivujal.pdfIn PDF document text
    • http://trastenmyqort.online/bixajigevase7r9w3.pdfIn PDF document text
    • http://jefevivavifax.scienceontheweb.net/rheem_marathon_50_gallon_electric_water_heater_reviews.pdfIn PDF document text
    • https://cdn.sqhk.co/kuluxasoge/m5ifjaB/lunoxet.pdfIn PDF document text
    • https://cdn.sqhk.co/nexuliwadi/S4wjshf/last_day_on_earth_survival_ios_gameplay.pdfIn PDF document text
    • http://fotubobuwenapu.scienceontheweb.net/naruwikefowumubifuduba.pdfIn PDF document text
    • http://1cats.space/11th_step_nightly_reviewu2uge.pdfIn PDF document text
    • https://cdn.sqhk.co/dunokufimove/gdnsLgj/sales_administrator_interview_questions_and_answers.pdfIn PDF document text
    • http://vebuwovivulab.mygamesonline.org/africa_country_map.pdfIn PDF document text
    • http://sowopezamiw.medianewsonline.com/why_does_jocasta_kill_herself_in_oedipus_rex.pdfIn PDF document text
    • http://sodaapp.club/wejisanuwixerubiwid66vqh.pdfIn PDF document text
    • http://remebetegekit.iblogger.org/wajiruwadud.pdfIn PDF document text
    • http://xemizawufogutuf.scienceontheweb.net/tesame.pdfIn PDF document text
    • https://cdn.sqhk.co/pinofizulag/dKjjx4M/anthem_of_heroes_cheats_ipad.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dozuxix.myartsonline.com/barbara_brennan_hands_of_light.pdfIn PDF document text
    • http://wogafut.rf.gd/bmw_usa_performance_parts.pdfIn PDF document text
    • http://belibivizonojo.myartsonline.com/paguvepexogevapuwep.pdfIn PDF document text
    • http://ledufowi.myartsonline.com/85594963134.pdfIn PDF document text
    • http://judiserod.onlinewebshop.net/how_do_jet_engines_work_youtube.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e4d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D2 5360 bytes
SHA-256: ffc36795b13e59cb9b491cc6aaf18069b32f38962665b0abb0d9b5f5e0dfdbb1
font_01_sfnt_off0000f6e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6E3 11032 bytes
SHA-256: c7593a9e4fc9cbcb70f4153776c2495a27e1ddf4eac645f96dc3feb072a12464

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