Malicious PDF — malware analysis report

Static analysis result for SHA-256 26f2616522fa650d…

MALICIOUS

PDF

52.6 KB Created: 2020-10-25 19:12:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-18
MD5: 849d0906141137b26e134c2af22507bf SHA-1: 6d986c694b91d912f3e0de9b9d4a38056b1f0e68 SHA-256: 26f2616522fa650ddfdda4cf61fbb433950fddcab256b1c5cb1fb689afa2379f
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file is identified as malicious due to its function as a link farm, containing numerous embedded URLs that redirect to external sites. The primary redirector URL, 'https://ggtraff.ru/wb?keyword=lionel%20duroy%20eugenia%20pdf', suggests a potential SEO manipulation or phishing lure. The extensive list of links, many hosted on disposable domains, indicates a coordinated effort to distribute malicious content or traffic.

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://ggtraff.ru/wb?keyword=lionel%20duroy%20eugenia%20pdf In PDF document text
    • https://s3.amazonaws.com/zetare/24808654087.pdfIn PDF document text
    • https://s3.amazonaws.com/mibiwivanetuj/remukogikonavavowonota.pdfIn PDF document text
    • https://s3.amazonaws.com/tabobujimo/catalogo_ikea_2010_espaa.pdfIn PDF document text
    • https://xonuveviriniw.weebly.com/uploads/1/3/0/7/130738603/bd2ef7.pdfIn PDF document text
    • https://murepofolod.weebly.com/uploads/1/3/4/4/134480544/4e155f8178b07.pdfIn PDF document text
    • https://fidevawane.weebly.com/uploads/1/3/0/8/130814252/78a8f.pdfIn PDF document text
    • https://tuboxivodase.weebly.com/uploads/1/3/4/3/134387713/6e5957b6.pdfIn PDF document text
    • https://moxitasa.weebly.com/uploads/1/3/1/4/131454719/rutorufavevemak.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00008a3f.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00008a3f.bin)
    • https://uploads.strikinglycdn.com/files/22c317b8-f16f-4161-a95d-c8f6f29962a4/gokepovawun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94e118fb-dd3a-41b4-91b8-6e949c4bbdf0/17408668120.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96bf01af-42ba-4a3e-9eb8-311819c0ca5f/382033074.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c86a065-9f9d-4bfe-9b03-59dbc77b20f8/16407048389.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88db60fb-21e9-4d0e-88aa-a5f5911d1681/xiposetuxolamo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92e6dd31-a1c1-4197-82c4-4b4730737e3c/65700897985.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f8c74a2-3a0e-4bea-bb34-1fe2f4f996ef/songs_about_the_crucible.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/4517/4439/files/how_to_install_cctv_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/5647/6572/files/correct_use_of_prepositions_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/4479/6078/files/85058243135.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2894/5819/files/amavasya_jan_2020_drik_panchang.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff0cecb2-2155-4acf-ac63-9e5ac4280824/rubeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50ba63c0-73b8-4799-92d6-83e78f2fef90/multiplication_fun_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d69b719c-c77d-45fa-a14a-ac8752829f5e/melov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/abfb2580-0301-4770-9472-6823bc1cc420/20000731990.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 extracted file (font_00_sfnt_off00008a3f.bin)

Related samples 8

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_off00008a3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A3F 5076 bytes
SHA-256: 1979b84e3e7ccbd249be4e3b549cff34d8bdb7ee8bf494af70e4f84e058c8c45
font_01_sfnt_off00009b9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B9C 13524 bytes
SHA-256: af9ed908e389544ad13707fe7bf82c1e8f6e484c246dda97d60c0ca7b1dd60b8

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