Malicious PDF — malware analysis report

Static analysis result for SHA-256 620bf0d0d60f194c…

MALICIOUS

PDF

68.8 KB Created: 2021-02-27 09:57:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 5f117259082635fab58c142d7a2532f5 SHA-1: 6d919839ec285a67861d252b4b0001e51404e391 SHA-256: 620bf0d0d60f194c8f2a23274e5fb2ec8973fae9753a1a815e36deca4628c66c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://vilenefex.ru/award?keyword=ethernet+straight+cable+color+code PDF link annotation
    • https://cdn.sqhk.co/zewezerezi/ehcgdgi/glow_grid_game.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482009/normal_600cecc3f23aa.pdfIn PDF document text
    • https://cdn.sqhk.co/guwaloxipete/hhf6EJL/airplane_for_sale_by_owner.pdfIn PDF document text
    • http://idealslimitalia-oficial.site/assetto_corsa_drift_modsx5aoy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465559/normal_5fd5f3fc7f45c.pdfIn PDF document text
    • https://dapobirot.weebly.com/uploads/1/3/4/8/134888013/6019945.pdfIn PDF document text
    • http://wrestling-mma.com/gobuxamevabivorawofvqvm.pdfIn PDF document text
    • https://cdn.sqhk.co/wujakegu/ijuH9jj/70757040473.pdfIn PDF document text
    • http://teren.fun/software_update_iphone_5s_ios_13jczzk.pdfIn PDF document text
    • http://beststudent.fun/tetebapegoremugannn.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/wibadinavosunom/sales_analysis_report_in_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/nfl_week_5_printable_pick_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kukupunopedon/83997126534.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_off0000d224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD224 5296 bytes
SHA-256: a52bc718cf8a5d0cc3bfc7e648aead03f5b4a4b5d4f200bde840fb297ec977f7
font_01_sfnt_off0000e41e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE41E 10128 bytes
SHA-256: dc9ea1dc13db69609b93186e94d5e1ea6260234756a045e17a336f26f49868d9