Malicious PDF — malware analysis report

Static analysis result for SHA-256 081a8234abf4cd66…

MALICIOUS

PDF

76.5 KB Created: 2021-03-03 20:50:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 09cde252028c370cac11ae24f35d2b2d SHA-1: 6daab39442db2974e97c1c3c178f9a43331bbfff SHA-256: 081a8234abf4cd66d1fcc9605441d38a81a160890f801186dd4ad1c467edc19e
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://resalured.ru/award?keyword=what+is+the+average+salary+of+an+amazon+employee PDF link annotation
    • http://ninomut.sportsontheweb.net/kaketokom.pdfIn PDF document text
    • http://vawurabel.mygamesonline.org/what_are_the_elements_of_a_news_report.pdfIn PDF document text
    • http://naturapple.space/online_aadhar_by_aadhaar_numbernsptt.pdfIn PDF document text
    • http://xemizawufogutuf.scienceontheweb.net/biwibijajugiwisi.pdfIn PDF document text
    • https://beluxavin.weebly.com/uploads/1/3/4/5/134507718/e5750b84e.pdfIn PDF document text
    • http://dawexefif.getenjoyment.net/what_is_report_writing_in_nursing.pdfIn PDF document text
    • http://zozavelomidabi.scienceontheweb.net/75404274617.pdfIn PDF document text
    • http://cmbespaceclient.xyz/letra_del_canto_saber_que_vendrasrnkd5.pdfIn PDF document text
    • http://leadtop.co/2221423140407cpf.pdfIn PDF document text
    • http://nonowun.mywebcommunity.org/tosam.pdfIn PDF document text
    • http://hellochildren.online/acceptance_letter7hrau.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/jujadodedaruxix/1683950012.pdfIn PDF document text
    • https://s3.amazonaws.com/zumezeviwakiz/53748188730.pdfIn PDF document text
    • https://s3.amazonaws.com/wiremeresegikon/present_continuous_test_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kozibowisenatu/ccleaner_professional_plus_crack_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/woberiz/furby_connect_app_store.pdfIn PDF document text
    • http://forojiwimudobo.atwebpages.com/1952_play_by_samuel_beckett.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/curso_de_violao_para_iniciantes.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_off0000ed0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED0B 5540 bytes
SHA-256: 11f1952e769fe9b862335130058152f85bb941aa7317258fa44b11ef0075455c
font_01_sfnt_off0000ffdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFDC 10920 bytes
SHA-256: 955b0e587148bb68241e60be0ad9cb6c94c46fd52f4979438cfb483ac6a23b3d