Malicious PDF — malware analysis report

Static analysis result for SHA-256 624f5bdf9d9539d3…

MALICIOUS

PDF

63.3 KB Created: 2020-10-05 01:40:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-29
MD5: 9ac41ab588ad4d50b085b6d9f8d8fc3b SHA-1: 834f3769f7a48ba9f95be5993255151a34473a61 SHA-256: 624f5bdf9d9539d3a020135ceaa262b2e130e4725519ef16e630028d2480828b
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://ggtraff.ru/strik?keyword=tensei+shitara+slime+datta+ken+light+novel+pdf In PDF document text
    • http://files.duckinn.co.uk/uploads/1/3/1/3/131380504/339f4e5ffbc990.pdfIn PDF document text
    • http://files.terrysitz.com/uploads/1/3/0/7/130775760/3816108.pdfIn PDF document text
    • http://files.picturedrocksrealestate.com/uploads/1/3/0/8/130874060/39cbb2f107.pdfIn PDF document text
    • http://zujilixig.theorlandorealtor.com/uploads/1/3/1/4/131408229/kujujunumijokev-gisov-redewivonoga.pdfIn PDF document text
    • http://files.lorislibrary.org/uploads/1/3/2/7/132710714/bemeleta.pdfIn PDF document text
    • http://nojem.annemariesstudio.com/uploads/1/3/0/7/130776647/7811458.pdfIn PDF document text
    • http://files.theultimatecruiser.com/uploads/1/3/1/4/131406827/8024495.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/28df5d2c-6863-4de1-9512-b99e0f60aeb4/68144779868.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf70352b-6889-4930-a817-5507622524ca/mopojuzoromebesalen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f72ae224-a963-4c7d-8713-68c79616728b/folawurowivotexat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8663/3374/files/2947919545.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_off0000774f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x774F 17832 bytes
SHA-256: 4a296fda17520fcf840f41e463612005ddeb22d9b9a4e3a7ab3d707c72f37c0c
font_01_sfnt_off0000b0c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0C2 5528 bytes
SHA-256: 92a63e483cbd2b2ee707bbac9469a11fd180241d29ef807e0be7aeb337f4305c
font_02_sfnt_off0000c36d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC36D 14224 bytes
SHA-256: be5b0118f703d57ad3bea31b601c6f0aa2ced1e213825ebfb540fa6f90699ce6