Malicious PDF — malware analysis report

Static analysis result for SHA-256 9eb3cbdb45b9f9e3…

MALICIOUS

PDF

85.0 KB Created: 2021-02-09 20:29:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: fe46966de2de20cfe20a881a8b8b8425 SHA-1: c63d9700dfed3fda7c4a182d59bcb4583a4e6e6d SHA-256: 9eb3cbdb45b9f9e39d9bcded82a6b6e483753754f6bf87745aa591bd2511d25f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://leonvi.ru/wb?keyword=michigan%20mandated%20reporter%20online%20reporting%20website PDF link annotation
    • http://letilemugemin.66ghz.com/linear_algebra_system_of_linear_equations.pdfIn PDF document text
    • https://farazekij.weebly.com/uploads/1/3/4/3/134379469/116977.pdfIn PDF document text
    • https://nenovalo.weebly.com/uploads/1/3/2/7/132712003/55a173.pdfIn PDF document text
    • http://gelchlen.fun/advantages_of_internet_to_students4d503.pdfIn PDF document text
    • https://gamuzajebi.weebly.com/uploads/1/3/4/4/134481120/6157381.pdfIn PDF document text
    • https://turonobofudub.weebly.com/uploads/1/3/4/4/134463989/1dba6a5863b.pdfIn PDF document text
    • http://vigastlens.xyz/versatile_sew_in_meaningu8da6.pdfIn PDF document text
    • http://weraka.online/wuxajatosulkyvyg.pdfIn PDF document text
    • http://titanovyi-filtr.ru/906981800714enzg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419832/normal_5fd082ae327db.pdfIn PDF document text
    • http://vejefulolite.22web.org/hoa_board_of_directors_meeting_agenda_template.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403938/normal_600df479e8663.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413693/normal_60157289686b4.pdfIn PDF document text
    • http://tehnopolis.org/aderant_traduzione_latinayvjtn.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/towakog/format_json_pycharm.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/wirota.pdfIn PDF document text
    • https://s3.amazonaws.com/xefejevife/8886825449.pdfIn PDF document text
    • https://s3.amazonaws.com/lotibabakuj/ny_state_central_register_mandated_reporter_hotline.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_off00010f3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F3A 5724 bytes
SHA-256: a9f72a0edb38e9ccd65a1fd44613cf92cd46d3f5e8af0ce4c146c64a6dcc73d3
font_01_sfnt_off0001229b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1229B 10564 bytes
SHA-256: 6328476e0ab15f16512f7a5f142a60c109b5167bece474cde1ebd80d022d72c0