Malicious PDF — malware analysis report

Static analysis result for SHA-256 148aa5d13bfad44a…

MALICIOUS

PDF

83.3 KB Created: 2021-03-23 21:21:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0df8a74ebe49cb25a42113783a1cadcd SHA-1: d2c5d93849a24c4165df351a2be44a470e1dbf30 SHA-256: 148aa5d13bfad44abd981750554094a728e50bdf3bf127c2db51ee1587720d78
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://lozipotod.ru/award?keyword=centrifugal+fan+blade+design+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4454825/normal_6027ebf64ee71.pdfIn PDF document text
    • https://zegimobigew.weebly.com/uploads/1/3/4/3/134313375/3185090.pdfIn PDF document text
    • https://kodopikowi.weebly.com/uploads/1/3/4/6/134659436/vibik.pdfIn PDF document text
    • https://cdn.sqhk.co/rodisukipi/eugh0ie/39957312381.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406170/normal_5fdada4bc7cf5.pdfIn PDF document text
    • https://cdn.sqhk.co/wezupobuwab/dZijiKZ/teddi_mellencamp_diet_recipes.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450896/normal_6040bd58c1f18.pdfIn PDF document text
    • https://xerupirep.weebly.com/uploads/1/3/1/4/131408033/1431148.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/punurum/nabebixesoluzumiguxagona.pdfIn PDF document text
    • https://a86a6b26-b473-4b55-b9aa-7628a2bff077.filesusr.com/ugd/4f270c_b8a0a351e9254d95bb009f86b4809421.pdf?index=trueIn PDF document text
    • https://cbb9655c-b60d-4095-8c1c-bb5f9a2903c5.filesusr.com/ugd/4dd980_d49f0e38b5224174938b45b3e028cdec.pdf?index=trueIn PDF document text
    • http://zabesawafusoxa.rf.gd/xedudanesevade.pdfIn PDF document text
    • http://dobejefazari.rf.gd/90124436755.pdfIn PDF document text
    • http://subokud.epizy.com/are_haier_washing_machines_any_good.pdfIn PDF document text
    • https://s3.amazonaws.com/degisapemifa/intertrust_spv_cayman_limited_annual_report.pdfIn PDF document text
    • https://700ceb37-22d2-47c5-9888-d858af679aee.filesusr.com/ugd/c345b0_baa71647734545f09a622c55b3ce5cdf.pdf?index=trueIn 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_off00010692.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10692 5256 bytes
SHA-256: a3808e271f46435f92a70c81a0a80782c838d7bbcdbcb819d7b9a647c5aca82d
font_01_sfnt_off00011875.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11875 11696 bytes
SHA-256: 617d4abbc07a966f12bb70a53df679072bfa0faf14e688c9202683ecb1a43276