Malicious PDF — malware analysis report

Static analysis result for SHA-256 22b3f0bf467d6130…

MALICIOUS

PDF

40.5 KB Created: 2020-10-01 05:10:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-02
MD5: 26030d225ccb4330c741470bfffdb4b0 SHA-1: 717455987abb8c8f7057757bfdf7aa05de7b2055 SHA-256: 22b3f0bf467d6130f1d8a1f60cb567b9f0d063330bfaf9295cb696364edad336
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://gettraff.ru/strik?keyword=possessive+pronouns+and+possessive+adjectives+exercises+with+answers+pdf In PDF document text
    • https://site-1036751.mozfiles.com/files/1036751/3725822635.pdfIn PDF document text
    • https://site-1036775.mozfiles.com/files/1036775/92322084584.pdfIn PDF document text
    • https://site-1036744.mozfiles.com/files/1036744/80419111728.pdfIn PDF document text
    • https://site-1037282.mozfiles.com/files/1037282/96929602821.pdfIn PDF document text
    • https://site-1036684.mozfiles.com/files/1036684/66127140950.pdfIn PDF document text
    • https://site-1038946.mozfiles.com/files/1038946/10066043767.pdfIn PDF document text
    • https://site-1037156.mozfiles.com/files/1037156/kigadumisubotabozotakoxi.pdfIn PDF document text
    • https://site-1038768.mozfiles.com/files/1038768/xudadaxovirevumux.pdfIn PDF document text
    • https://site-1036699.mozfiles.com/files/1036699/pusajejojinibakeduk.pdfIn PDF document text
    • https://site-1036696.mozfiles.com/files/1036696/tiribonomomowixudef.pdfIn PDF document text
    • https://site-1037233.mozfiles.com/files/1037233/leboxivi.pdfIn PDF document text
    • https://site-1036960.mozfiles.com/files/1036960/perinov.pdfIn PDF document text
    • https://site-1036939.mozfiles.com/files/1036939/letafafiwu.pdfIn PDF document text
    • https://site-1038529.mozfiles.com/files/1038529/11661211585.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/1/0431/9471/2228/files/disuvokaguxamusonubulevos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2344/8736/files/vadarokudono.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5216/2462/files/lizubugidovov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/0210/5495/files/jujojom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/7695/9655/files/china_gate_movie_free.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_off00005ee4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE4 5508 bytes
SHA-256: 178e1465c2822b6342ef68ea12abaa296c4d3924a92389d2350169dc5e7cfe2d
font_01_sfnt_off000071bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71BF 10000 bytes
SHA-256: a4b986d5184ce0b4db02a4ab12596be3f40cbfab9ffbad42b77319524c4c6fb2