Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1d5bcb76a8220dc…

MALICIOUS

PDF

72.8 KB Created: 2021-03-03 11:29:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2d4396d8926b1934d186bd682aad901b SHA-1: c5a160a88d3d1bd4fdb4954d5cf897a8771afa78 SHA-256: f1d5bcb76a8220dc6c76c0d31d32fc9c136f31bc532306234ddbfad71b508d30
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://gimoguvi.ru/award?keyword=visual+studio+2015+free+download+filehippo PDF link annotation
    • http://nutejujaxi.66ghz.com/string_interpolation_c_format_date.pdfIn PDF document text
    • http://komarovskii.xyz/sentence_construction_worksheetzujrc.pdfIn PDF document text
    • http://passive-income.ru/navozozurinoloverosisawon8wswn.pdfIn PDF document text
    • http://waystep.site/fitivalunamalizuvedanuevvnv.pdfIn PDF document text
    • http://xiwasaruv.66ghz.com/92711631483.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474462/normal_601a1482b5c94.pdfIn PDF document text
    • http://papotanepif.22web.org/tegaw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497346/normal_5fecfdfacca94.pdfIn PDF document text
    • http://jagefefixod.22web.org/87989818313.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455380/normal_5fce2c86b57f8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473919/normal_5feb052e7ff44.pdfIn PDF document text
    • http://teren.fun/94567367710gfypn.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/bogijexu/hp_laserjet_4200_configure_ip_address.pdfIn PDF document text
    • http://wajines.rf.gd/7261098680.pdfIn PDF document text
    • https://s3.amazonaws.com/bitizopovopaso/english_coloring_worksheets.pdfIn PDF document text
    • http://gelidug.epizy.com/56930415839.pdfIn PDF document text
    • https://s3.amazonaws.com/gagagakigibapo/67778727426.pdfIn PDF document text
    • http://toxukanubevaga.rf.gd/39854889259.pdfIn PDF document text
    • http://xibogowidam.epizy.com/photography_cheat_sheet_free.pdfIn PDF document text
    • http://wizebefekeb.epizy.com/2966210913.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_off0000dfcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFCD 5636 bytes
SHA-256: 68e1b18cbd30203602e3bbd770c454f0bde5a542381e4ed8430cc36b61739107
font_01_sfnt_off0000f313.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF313 10192 bytes
SHA-256: 7978a7c1a1cf54f591a623dd0647afe51a5cfa5d2beefe6e72a5147cfb523abd