Malicious PDF — malware analysis report

Static analysis result for SHA-256 e451f806413b4569…

MALICIOUS

PDF

72.3 KB Created: 2021-03-03 19:23:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c906bd55f1d6e85e9b8d06edfa49af2d SHA-1: dec9df4b38ca7883b321e9f1af7b520a31105e9e SHA-256: e451f806413b45693a7c895ea044e55ae82666e172b62ca7586405d1eef1f5da
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://seumenha.ru/award?keyword=drawing+line+graphs+worksheets+ks2 PDF link annotation
    • https://lerofiputa.weebly.com/uploads/1/3/4/3/134367001/f2c3dbc9218b.pdfIn PDF document text
    • http://tebapewulodafe.getenjoyment.net/what_is_claims_adjudication_process.pdfIn PDF document text
    • https://kukonite.weebly.com/uploads/1/3/4/6/134611202/semalinigusudigorado.pdfIn PDF document text
    • https://muwunijika.weebly.com/uploads/1/3/1/3/131398004/nosegogisanam.pdfIn PDF document text
    • https://cdn.sqhk.co/buzulexoxuve/rJijwjd/lupivabaxif.pdfIn PDF document text
    • https://cdn.sqhk.co/vizinifum/jbujhdA/9404650417.pdfIn PDF document text
    • http://raxawevamavox.getenjoyment.net/how_to_apply_iron_on_vinyl_to_canvas.pdfIn PDF document text
    • https://wulapoledonuker.weebly.com/uploads/1/3/2/6/132695240/jewagedelezogopa.pdfIn PDF document text
    • https://cdn.sqhk.co/degavorofala/ihjcCgc/twisted_x_driving_mocs_slip_on.pdfIn PDF document text
    • https://cdn.sqhk.co/vasibejovej/bSigBsL/45271100121.pdfIn PDF document text
    • http://wovuwukotuvoxi.mygamesonline.org/dogowugab.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://megigezorozo.atwebpages.com/what_year_is_the_kindle_fire_hd_3rd_generation.pdfIn PDF document text
    • https://s3.amazonaws.com/bokofapig/dvsa_driving_test_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/xupimaral/bheema_mp4_hd_video_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/legapatatezisa/building_a_homemade_shooting_bench.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_off0000de68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE68 5368 bytes
SHA-256: 07d9214212fd9868d3ca74bbb7676137f58660f82bf4455e0a25d3e8943bc68c
font_01_sfnt_off0000f0c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0C0 10296 bytes
SHA-256: 0770ca7cafca27cabfb2401ce59859d0636caa4e715f5d12e2e814e673cd560d

Open this report in the interactive analyzer, or submit your own file for analysis.