Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e56d64a628ae3b2…

MALICIOUS

PDF

76.8 KB Created: 2021-04-07 17:42:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: a867a201626f60a69bb49ee3fcbbb561 SHA-1: 34cc69b6c15609ade4b0b40e00cc2ce531b93203 SHA-256: 2e56d64a628ae3b2834c329379c824b0bf7f7e869ad7d2e958a26299f89ab3a9
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The sample is a PDF document that contains numerous external links, many of which point to disposable domains and are likely part of a link farm designed to obscure the true destination. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically phishing. The primary malicious URL identified is https://dugedepap.ru/123?utm_term=define+immunization+pdf, which is likely used to redirect the user to a phishing or malware-hosting site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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 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://dugedepap.ru/123?utm_term=define+immunization+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4383923/normal_60432e86c4752.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460476/normal_6038556142ac6.pdfIn PDF document text
    • http://situvupumu.medianewsonline.com/63420884064.pdfIn PDF document text
    • http://vizojuzoninunoz.scienceontheweb.net/candida_infection.pdfIn PDF document text
    • http://rumigiwataj.getenjoyment.net/high_performance_cluster_computing_programming_and_applications.pdfIn PDF document text
    • http://bumawusuka.mypressonline.com/xegumobamuworigugesebatok.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499005/normal_604d0c26d6ba0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384295/normal_5fe97043edbea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410418/normal_601f8168d8cc5.pdfIn PDF document text
    • https://cdn.sqhk.co/wepiwojeta/hlifRCP/dinosaur_world_live_uk_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/tamejenonisi/gdAYaqf/french_nail_designs_coffin_shape.pdfIn PDF document text
    • http://kejumazinanu.mywebcommunity.org/mirabawaredid.pdfIn PDF document text
    • http://jonebukusopovet.mygamesonline.org/how_to_identify_safety_issues_in_the_workplace.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://df4002df-ed14-466c-b758-10ced248c840.filesusr.com/ugd/3b03e6_a4453311375946aab1c5e7d07fb18013.pdf?index=trueIn PDF document text
    • https://4cf6c2b4-cd84-4b73-83b1-bf7f441162b2.filesusr.com/ugd/e50c99_f5424143856f437e8cf0d764eb42ac81.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/93339994089.pdfIn PDF document text
    • http://dirulibas.onlinewebshop.net/clinical_alcohol_withdrawal_scale.pdfIn PDF document text
    • https://6440a9f6-5e82-4153-977b-4ffe9374ec4a.filesusr.com/ugd/7182f3_111e1e6fe78d45bcbb5256276c004c61.pdf?index=trueIn PDF document text
    • https://b5b764bc-4fc6-48d7-9a4b-423a4d05f225.filesusr.com/ugd/3f2390_b51c64cec18f486a9bd0fb312fe677ee.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tolivajupeku/72440921485.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/blaupunkt_tv_manual.pdfIn PDF document text
    • https://d25e5d79-f3dc-43ab-8538-58f2f4730235.filesusr.com/ugd/898300_a3bd917d4b5a47d6b144a6b000a19ae7.pdf?index=trueIn 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_off0000f277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF277 4932 bytes
SHA-256: 415bebbead350471d62e956f76815a0450c6ad3b44a864a4be33329e5c292e04
font_01_sfnt_off0001033f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1033F 10176 bytes
SHA-256: f3a882fabc192ea5edc1181a3ce933832edc64334430c44cc89794ac4accaf06

Open this report in the interactive analyzer, or submit your own file for analysis.