Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d3211d861254017…

MALICIOUS

PDF

70.9 KB Created: 2021-03-09 00:09:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 47a9e8f5bb5fb228455261456c4081d0 SHA-1: 389788711e6490593c4043793ea1979dece5a3c5 SHA-256: 7d3211d861254017716f175d5410b6a7423da1015f30059b85230e272a820a2a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://golowaki.ru/award?keyword=bohemian+rhapsody+fingerstyle+tab+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4382771/normal_6036d94677ed3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494433/normal_6008f587ca026.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379859/normal_5ff46453323fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416665/normal_5fe811f1e14d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446499/normal_6038e80a6c69b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466664/normal_5fc94f5271979.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494668/normal_603342c575780.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414335/normal_603de363b9db9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465392/normal_600de8f1c9d34.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378856/normal_5ffab1b1be9d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472484/normal_5fd1b4825c105.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482402/normal_5fcd33c8f3b1d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493917/normal_5ff584b882fe7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tonixororonimi.rf.gd/free_website_templates_for_export_business.pdfIn PDF document text
    • http://tukutuxobolekub.epizy.com/66054038014.pdfIn PDF document text
    • https://s3.amazonaws.com/warapagefasovi/31439167496.pdfIn PDF document text
    • http://tafoboverel.epizy.com/matafememujudivijibivifof.pdfIn PDF document text
    • http://saxowuwu.rf.gd/vabubalenoriluvo.pdfIn PDF document text
    • https://s3.amazonaws.com/gagotaniwipure/permanently_delete_browsing_history_on_android.pdfIn PDF document text
    • http://viwivebobip.epizy.com/excel_calendar_2019_uk_template.pdfIn PDF document text
    • https://s3.amazonaws.com/gewisetug/bhairavi_raga_songs_free.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_off0000d360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD360 5748 bytes
SHA-256: f867104ca95b3c4a41eb9ab0e3e0990d09ffbed4f642cf2298d6c5f19c840cb8
font_01_sfnt_off0000e6cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6CB 11796 bytes
SHA-256: daae092cb99fc4aadba96fa03832ca3bcadc12e4beb1148026730d7d9c03bd18