Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b31c3c1b632b50f…

MALICIOUS

PDF

66.9 KB Created: 2021-02-09 16:24:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 68d0b1103302f6a137a82dff036e24cc SHA-1: 8b8401999e8ad649815db797ea40c14a55cb75db SHA-256: 6b31c3c1b632b50fa649e3f2fce858dce3c91512220275e8c5e64f2cd65b2373
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://jacksth.ru/aws?utm_term=free+anubis+mask+template PDF link annotation
    • https://nevajuto.weebly.com/uploads/1/3/2/6/132695651/jagafezapuvevu.pdfIn PDF document text
    • http://lunesygets.xyz/10737138460sz4gq.pdfIn PDF document text
    • http://pilarivem.22web.org/chimera_software_64_bit.pdfIn PDF document text
    • http://stavki-na-sport.site/calculator_vault_apk_for_pcpi5i7.pdfIn PDF document text
    • http://xipuxolidumix.22web.org/free_energy_pogil_answers_ap_chemistry.pdfIn PDF document text
    • https://cdn.sqhk.co/xexisini/8LjajfI/27976388339.pdfIn PDF document text
    • http://sandiego-podcasts.com/cancer_pulmonar_de_celulas_no_pequeasuqyzx.pdfIn PDF document text
    • https://sojagifuwolu.weebly.com/uploads/1/3/4/6/134689160/8458280.pdfIn PDF document text
    • http://allwoman.site/download_icewind_dale_2_on_android9wosm.pdfIn PDF document text
    • http://sozefavi.22web.org/kerarezadisiwumakebedak.pdfIn PDF document text
    • https://dutizadip.weebly.com/uploads/1/3/4/8/134889078/bamavisarina_davokelagila_somanofopuv_vikalorawifire.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rubukemudug.rf.gd/75728227259.pdfIn PDF document text
    • http://wajodojizofe.epizy.com/nawavarasilukup.pdfIn PDF document text
    • http://rajafidaforuzav.epizy.com/88138097253.pdfIn PDF document text
    • http://kofufinaniba.rf.gd/gambit_imdb_parents_guide.pdfIn PDF document text
    • http://nulitapa.rf.gd/lotus_symphony_spreadsheet_functions.pdfIn PDF document text
    • http://nuvebuxuloruvux.epizy.com/medical_terminology_textbook.pdfIn PDF document text
    • http://pakoxerevigere.epizy.com/estar_conjugation_practice_worksheet_answers.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_off0000c89f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC89F 5124 bytes
SHA-256: 14de10a3b37b19bf8c3c621fb01df126aee8d870a9fe8eb697a983726e6a39bb
font_01_sfnt_off0000d9f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9F4 10912 bytes
SHA-256: a350a82864c1b19ffc40a6cf2bc8b4bf652d377d412a55ae5ff8babde823c336