Malicious PDF — malware analysis report

Static analysis result for SHA-256 b69e638a7b1f9bb3…

MALICIOUS

PDF

70.9 KB Created: 2021-03-04 16:41:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 256402da9475f3096fca2334edb18e83 SHA-1: d432f717aae530bde52a128b9333e1c3a2411b6d SHA-256: b69e638a7b1f9bb3bb12599f7df4c1fcfba419d6c93e5680206f164b0e8212ec
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://xezojetit.ru/award?keyword=is+killing+floor+2+free+on+ps4 PDF link annotation
    • https://pigixona.weebly.com/uploads/1/3/5/9/135986477/15fe62f4980c.pdfIn PDF document text
    • https://nixujukasal.weebly.com/uploads/1/3/1/6/131636737/nodik-bezefobipozuza-dufiravezununu.pdfIn PDF document text
    • https://jelaxatibepa.weebly.com/uploads/1/3/2/6/132681396/sejofupelile-nojudurivadegif.pdfIn PDF document text
    • https://balolenitazir.weebly.com/uploads/1/3/1/0/131071159/tewixirariv.pdfIn PDF document text
    • https://girejegi.weebly.com/uploads/1/3/4/4/134490844/4878150.pdfIn PDF document text
    • https://solakozejifu.weebly.com/uploads/1/3/5/3/135347449/733567fcf.pdfIn PDF document text
    • https://pesasujax.weebly.com/uploads/1/3/4/8/134882000/1c0c77d21e9.pdfIn PDF document text
    • https://linikakisevokeg.weebly.com/uploads/1/3/6/0/136098208/7250170.pdfIn PDF document text
    • https://cdn.sqhk.co/pegipoveridi/harjh2m/88040530586.pdfIn PDF document text
    • http://akvatehnika74.ru/los_vedas_son_libros_sagrados_degr5m5.pdfIn PDF document text
    • http://connexion-amelii.xyz/reporter_dfinition_synonymeahvlp.pdfIn PDF document text
    • https://cdn.sqhk.co/xefijumu/iIibMih/foxadusexoposexazokod.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a2ab5f6-18f2-4e1b-87c5-f559f481dcc6/60490669298.pdfIn PDF document text
    • https://s3.amazonaws.com/kakef/fekoripewaxinalagikateg.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/free_attendance_tracker_spreadsheet.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/aba_english_premium_apk_ios.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b5e3783-9825-4fbf-ae61-e113b288b8f2/24794445675.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73926f85-f682-46dc-be9f-ebcb7ad11bfc/what_batteries_does_an_olympus_om10_take.pdfIn PDF document text
    • https://s3.amazonaws.com/sedimeraxufi/building_platform_bed_frame_king_size.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_off0000d8b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8B9 5080 bytes
SHA-256: 8791ef3d879e8a362a817b3159dd0f9917c472cd00fd0b630b1f0a4320a7c278
font_01_sfnt_off0000ea28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA28 10756 bytes
SHA-256: 987141b0a825ae628be15699e5dc214d608f8f75bd710a39e38e1a43a6939652

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