Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cc7e0e90ecdcad0…

MALICIOUS

PDF

70.8 KB Created: 2021-02-23 13:48:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7217a8399343b7d86d138d9b31d6a275 SHA-1: 3cea7fa6a594a13202081aa7b0df11e4a43ead1d SHA-256: 7cc7e0e90ecdcad0064d19bc78b2ceecbe7d0fcc32315f05a06ccc326e92a383
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/wix?keyword=direct+and+indirect+characterization PDF link annotation
    • http://magonawaneku.22web.org/55527315704.pdfIn PDF document text
    • https://fibepuranes.weebly.com/uploads/1/3/4/0/134041348/fd92980ae.pdfIn PDF document text
    • http://santecmb-sarl.com/sidifixusin6lpgx.pdfIn PDF document text
    • http://carluxepaint.site/kusetanfqlze.pdfIn PDF document text
    • http://urolog.xyz/velagemufeddcej.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414852/normal_601ab0c9ccfd1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422137/normal_6030ee7a1a745.pdfIn PDF document text
    • http://vulifux.66ghz.com/adding_decimals_to_make_whole_numbers_worksheets.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444853/normal_60118b2796c19.pdfIn PDF document text
    • https://tonituligavu.weebly.com/uploads/1/3/4/8/134884188/6907091.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/daxemo/sophos_anti-_virus_for_linux_configuration_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/sojuravewi/xojaduxozisenefon.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_off0000dc39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC39 4868 bytes
SHA-256: defbfab477062e0306a7519e8c4f56cd1135e8920417d360c88a0e916e650c58
font_01_sfnt_off0000ecc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECC8 9984 bytes
SHA-256: 69c19629311a8c123e28bc01e6238c8fe7f9ab057ff55d0364d3bdaac126bde2