Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfed9681febaba62…

MALICIOUS

PDF

70.4 KB Created: 2021-03-03 11:49:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4e5e43b09c70ba9fd6ee5ab878e79999 SHA-1: d6c1ddbb060d7163a834797c9073be5f05ee76b3 SHA-256: bfed9681febaba62c3e28e0ad81ce3dafc9b5a434953ba49ac6e6c788ba51cd5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xajibur.ru/award?keyword=who+is+the+best+stock+trader+in+the+world PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370525/normal_601a32a02a055.pdfIn PDF document text
    • http://front-glass.website/93958916007tuf5j.pdfIn PDF document text
    • http://puveputado.sportsontheweb.net/rusawasubuw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422386/normal_60170159ca877.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375355/normal_5fd2a5e5bc118.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457590/normal_5ff349998f7ba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411512/normal_5fcb3067b4cac.pdfIn PDF document text
    • http://woxijakuzadajew.getenjoyment.net/what_staples_fit_craftsman_staple_gun.pdfIn PDF document text
    • http://lomigakorak.getenjoyment.net/how_to_read_a_metric_architectural_scale_ruler.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495526/normal_5fec78148d3cd.pdfIn PDF document text
    • https://poxefapujo.weebly.com/uploads/1/3/5/3/135312596/2d54300933a4c7b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417207/normal_602b46532ebc9.pdfIn PDF document text
    • http://trysucre.pro/albert_camus_le_mythe_de_sisyphe_commentaireci507.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484804/normal_5feb0bf0c08b6.pdfIn PDF document text
    • http://bukuminuwakub.mypressonline.com/a_christmas_carol_bbc_2019_trailer.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wonanikapudidak.atwebpages.com/behringer_xenyx_502_mixer_setup.pdfIn PDF document text
    • http://gogujigasad.onlinewebshop.net/lojexosogobevoj.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_off0000d5a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5A3 5336 bytes
SHA-256: 13f0d4835df45f64b6055bc49621c4a270f1c64f6e8b1eb857db6a002f4cab54
font_01_sfnt_off0000e7d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7D8 10136 bytes
SHA-256: cf05b99598b7a5acceca0e0409f13d901e43f4613caaa15c4c2913661e5b6000