Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7d3b04843c419b…

MALICIOUS

PDF

44.7 KB Created: 2020-10-24 19:59:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c05d0b099af8988049651893a6701d34 SHA-1: 1f23d6dacf71c02f7369a2425332393e553174f9 SHA-256: cd7d3b04843c419b46b24b911549897400f44bbfbf70d6126d56b553cec765d6
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://cctraff.ru/strik?keyword=introduction+to+emergency+management In PDF document text
    • https://mapipuluzobeb.weebly.com/uploads/1/3/1/3/131398440/rezaxexapesi_vowebabifutima_futaxowinikanim_fiwaginebax.pdfIn PDF document text
    • https://dirigesibujov.weebly.com/uploads/1/3/0/9/130969991/fisaj_neraroduza.pdfIn PDF document text
    • https://xosotujusosevo.weebly.com/uploads/1/3/4/3/134377620/1395019.pdfIn PDF document text
    • https://vunixumo.weebly.com/uploads/1/3/1/4/131453253/3ac78b13b13.pdfIn PDF document text
    • https://fulodovujigiw.weebly.com/uploads/1/3/4/0/134016909/rowuno-muwoli-pitejepon-noximojete.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369654/normal_5f9017eeb9670.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407087/normal_5f92a58bdba56.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367964/normal_5f8755931d843.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370294/normal_5f8a9333d6c72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369343/normal_5f8ba07b35168.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8098/3742/files/wikepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/9067/2293/files/concept_of_entrepreneurship_in_nigeria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4853/3144/files/92183463211.pdfIn PDF document text
    • https://s3.amazonaws.com/lupebesu/fezigejixajanixiperevosup.pdfIn PDF document text
    • https://s3.amazonaws.com/nawosineromigi/curriculum_vitae_download_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/vukurogowiletizuvi.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/mefokajodadaxisakugexil.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/morfologia_de_angiospermas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36ed71c4-449d-4f57-b850-5e039b8f108d/11166014892.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66f7e2c6-e19a-4b5b-88fa-0e523251c7b4/maleruxesudizurivonadofi.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_off000070ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70AE 5088 bytes
SHA-256: 14cffed69114ceb1b1f3a9a9e60ffa55dd8b5482a3f8881a78f35758fd7dcbeb
font_01_sfnt_off000081ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81EA 10300 bytes
SHA-256: 792152f5c8bc0dac0f3096b3fb53628ac01f38b104cda004363109efdda9e9e9

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