Malicious PDF — malware analysis report

Static analysis result for SHA-256 158230a3af3e2643…

MALICIOUS

PDF

68.1 KB Created: 2021-02-26 22:41:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 12ed3d74180366ae41407d1b61eadca8 SHA-1: 833e28b07c1cb65e6b5d0c71b15c00e958c48684 SHA-256: 158230a3af3e26435d7669cf9460d480bda8ba46b52be5a673c3c766bfb283ea
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://botokaw.ru/award?keyword=what+are+some+cool+diy+projects PDF link annotation
    • http://robot3.site/zojolenokalodifanit1lyl.pdfIn PDF document text
    • http://bcpreactiva-enlinea.com/halves_and_fourths_first_grade_worksheets1wais.pdfIn PDF document text
    • https://jimivisimobud.weebly.com/uploads/1/3/4/9/134901817/dibubajobig.pdfIn PDF document text
    • http://nominasacra.ru/secondary_checkpoint_past_papers_science_frees9dq9.pdfIn PDF document text
    • http://datab.vip/857270269818phnz.pdfIn PDF document text
    • http://begemotiks.space/261336737264dbma.pdfIn PDF document text
    • https://lokeduvedip.weebly.com/uploads/1/3/4/8/134885922/351d2be.pdfIn PDF document text
    • https://cdn.sqhk.co/widexerun/hggcLur/81647951101.pdfIn PDF document text
    • http://svarka-aurora.online/materiales_de_un_panel_solar_caseroue057.pdfIn PDF document text
    • http://3gusevshop.website/9822711338c8u6i.pdfIn PDF document text
    • http://axecheat1.xyz/cash_app_customer_service_number_reviewsegb6d.pdfIn PDF document text
    • http://idealicaitaly-ufficiale.site/xetujele1dx7o.pdfIn PDF document text
    • http://subfamjtii.site/pitotaxijekuditazinilexiwf5kr.pdfIn PDF document text
    • https://nenafusorez.weebly.com/uploads/1/3/1/4/131453248/lakafowasifex_pogolofomot.pdfIn PDF document text
    • https://cdn.sqhk.co/xenudipu/iejduii/vupuzaxuvunane.pdfIn PDF document text
    • https://kutisujazuj.weebly.com/uploads/1/3/4/6/134625744/4714761.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454995/normal_601c9c93f0316.pdfIn PDF document text
    • http://uniques.space/live_lock_screen_wallpapers_animezi9ca.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424933/normal_5ffe6ce4e71fc.pdfIn PDF document text
    • https://favigogijow.weebly.com/uploads/1/3/4/6/134643924/tesita.pdfIn PDF document text
    • http://nnorm-id.com/77857009714fbett.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_off0000cf59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF59 5504 bytes
SHA-256: 754900b8d4a66c54135c5369b73685fe20eb62bd5ad83e97dd04b8476492277e
font_01_sfnt_off0000e1fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1FC 9668 bytes
SHA-256: a01e3c5aab59b96b8746edae3c1a538b31a42a3f82e93bebbcb3ebe6709d2de0