Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa82921c6a911b34…

MALICIOUS

PDF

48.4 KB Created: 2020-10-12 15:48:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-06
MD5: 6e207e09be65eec51c16bad4767379ba SHA-1: c8a8baa1a01cb8fdf4745619706b4d338fe934d6 SHA-256: aa82921c6a911b349a269163eb3ab26bfbc5bb2ffc6fb3cd10ef8dbbacb0bedd
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=photo+editor+apk+download+for+pc In PDF document text
    • https://site-1036969.mozfiles.com/files/1036969/retagetiporikemuwumidisil.pdfIn PDF document text
    • https://site-1036867.mozfiles.com/files/1036867/3798679008.pdfIn PDF document text
    • https://site-1039621.mozfiles.com/files/1039621/daziki.pdfIn PDF document text
    • https://site-1038650.mozfiles.com/files/1038650/tilemowenojapuwuwopakidi.pdfIn PDF document text
    • https://site-1041284.mozfiles.com/files/1041284/purul.pdfIn PDF document text
    • https://site-1036791.mozfiles.com/files/1036791/sadezavigimun.pdfIn PDF document text
    • https://site-1036731.mozfiles.com/files/1036731/64551182261.pdfIn PDF document text
    • https://site-1043653.mozfiles.com/files/1043653/tagujewagitivavi.pdfIn PDF document text
    • https://site-1037240.mozfiles.com/files/1037240/58411113480.pdfIn PDF document text
    • https://site-1036838.mozfiles.com/files/1036838/jabobonaladuzofupetadura.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/0d1a0319-39ae-492d-80eb-2666b4be8b67/nifodemekopof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d06fc4e8-e77a-48f0-8101-0b5d6ed08cd9/26728926807.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6986777-c528-4aa2-94ac-76e3e24a42f5/90041803882.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fbb055c7-3c3a-4cf7-ae29-e7752989c1c9/fidarorupuwi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8cc627fc-ea3b-46b4-a2b1-d590d539e53f/jiketokegawojotowibatasa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbebb585-8599-4591-880f-f734d7421787/dekagepetojaveregetu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff4443cf-e961-445d-b26f-978af2b82cad/foleto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5005d476-efb1-49cb-a685-569a8a8d6c7a/72673389536.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5c4859a-75ff-4dea-9399-48aa71604a6e/10770970686.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e29431b7-6585-435d-8b26-5aa530c666a1/92942153477.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_off0000804d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x804D 5224 bytes
SHA-256: c45b12d08e312df54a97e519c7770c7a00719f9e2d6fa34d810aa48d75aa6bc1
font_01_sfnt_off00009219.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9219 9948 bytes
SHA-256: 927b0c295774f8006f2ebb2da6e6cecbadbcb271d187f1d8257d6176436501c2

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