Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae2a108bae358c59…

MALICIOUS

PDF

72.8 KB Created: 2021-02-26 03:09:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 28fd08118638ed49e3875922d5de3cf0 SHA-1: 8531587a9cb3f7862e5222cf9a9a9122aa16edfd SHA-256: ae2a108bae358c5954ded3f4cbd01e124f06dbbacc10d59a8be135cc3085bd40
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://baarspo.ru/aws?utm_term=epson+wf+3540 PDF link annotation
    • https://tipowunukal.weebly.com/uploads/1/3/4/3/134355136/sudup_ramos_denipar_zilunupozowib.pdfIn PDF document text
    • http://didazema.mypressonline.com/73606734360.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417220/normal_5feb463d44faa.pdfIn PDF document text
    • http://counterman.ru/og_mandino_university_of_successk98v6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485689/normal_60002642779e9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465277/normal_5fdcd7b9c4be6.pdfIn PDF document text
    • http://nakekizedexu.getenjoyment.net/manual_j_load_calculation_service.pdfIn PDF document text
    • http://nosinoski.shop/fatou_n_diaye_nuehqpa6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497110/normal_6002d577b8e43.pdfIn PDF document text
    • http://zarabatyivat.ru/bollinger_bands_weekly_charts92f74.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426261/normal_5fdb2b0e4fce1.pdfIn PDF document text
    • http://vubitim.sportsontheweb.net/puroferogubix.pdfIn PDF document text
    • https://cdn.sqhk.co/wuzexesetaba/fX0KaDg/super_solano_hair_dryer_diffuser.pdfIn PDF document text
    • http://lamakexo.scienceontheweb.net/72501394552.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412165/normal_5fd9d377d8c89.pdfIn PDF document text
    • http://helpcenter.business/13139069647ycj6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422877/normal_5fe78ae9573c3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485818/normal_5ff5a91fe44ae.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE062 5124 bytes
SHA-256: 5354bad6de4fb455099dad85c2bc10dd9501370392c3c9d285de06c298606d9a
font_01_sfnt_off0000f211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF211 10800 bytes
SHA-256: e1cf26cba723c5051353895810cff0e8419c541d2c85abab10f47d7c40425fb2