Malicious PDF — malware analysis report

Static analysis result for SHA-256 116e8be75ca26c25…

MALICIOUS

PDF

41.7 KB Created: 2020-10-10 23:57:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: a41e07fea4d67599da341b1b791a7f56 SHA-1: f55fddaa0e3a55a3a5735d0170b73ea09d898ec7 SHA-256: 116e8be75ca26c25728f56f8cec5b0562d587328908d4989d81736bb250266da
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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 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.
  • 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=ham+radio+starter+kit In PDF document text
    • https://site-1043650.mozfiles.com/files/1043650/71188181742.pdfIn PDF document text
    • https://site-1039149.mozfiles.com/files/1039149/gesokakakujegod.pdfIn PDF document text
    • https://site-1042092.mozfiles.com/files/1042092/91575562558.pdfIn PDF document text
    • https://site-1040685.mozfiles.com/files/1040685/36370939519.pdfIn PDF document text
    • https://site-1039173.mozfiles.com/files/1039173/mewuwazejatexudopadusati.pdfIn PDF document text
    • http://files.otelj.com/uploads/1/3/1/6/131636655/265a6df50d.pdfIn PDF document text
    • http://files.pristineautowrap.com/uploads/1/3/1/0/131070476/voxemusama.pdfIn PDF document text
    • https://site-1037156.mozfiles.com/files/1037156/zoruzi.pdfIn PDF document text
    • https://site-1037890.mozfiles.com/files/1037890/xeliserilejumebojos.pdfIn PDF document text
    • https://site-1039645.mozfiles.com/files/1039645/bunapomodavuxogi.pdfIn PDF document text
    • https://site-1043885.mozfiles.com/files/1043885/zomunurukakifowisugubuk.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/e3e21274-750b-4044-81ad-1b245d6e03ed/botenapugesolegi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0bc0460-0d17-40ed-b127-9eb83d020519/zewevisunisakikek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f3e56a2-dda4-4a7f-898f-0356345d3835/filigavivedolekivixu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c775d468-b957-4562-9b51-6ae8c47d7c2b/zadinufaraleg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19819edf-d831-4f6c-9307-5c462c93ef06/96549128983.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 6

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_off00006719.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6719 4964 bytes
SHA-256: 23d53bd7a996df451805a710976568ad4b6e5a48235d7c35bfca2d0bb9fbb027
font_01_sfnt_off000077e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77E0 10064 bytes
SHA-256: 8875298b84cd91bd610ce63d14b1c09e9f58d5a6bbadc3d684b0b589a9bb2c7e

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