Malicious PDF — malware analysis report

Static analysis result for SHA-256 c90f62695af65234…

MALICIOUS

PDF

75.2 KB Created: 2021-02-19 04:56:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f774cf866a673824ad57ab088e1ce129 SHA-1: 372fe2eda88e9b4b47c62c6a4e15c159cefc3bb3 SHA-256: c90f62695af65234b17f348e625c1f0e8a2b75fcff72839c0c7844637573cc12
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://jacksth.ru/aws?utm_term=best+walgreens+blood+pressure+monitor+reviews PDF link annotation
    • http://sellforce.ru/8607_observation_report_2tia8g.pdfIn PDF document text
    • https://kusebavizekofuk.weebly.com/uploads/1/3/4/0/134098677/4554240.pdfIn PDF document text
    • http://shopyou.online/zisimodetezufumitipaja9ln17.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485004/normal_5fcacc2530a35.pdfIn PDF document text
    • http://kowesawu.iblogger.org/chief_information_security_officer_license.pdfIn PDF document text
    • https://gijejutet.weebly.com/uploads/1/3/5/9/135974865/0dda10bfa9.pdfIn PDF document text
    • http://wiinorama.website/the_way_to_love_anthony_de_mello_review5zwxa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406812/normal_5fef0206cedfd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375509/normal_5fe5c53dbdd9f.pdfIn PDF document text
    • http://fullstacket.online/global_history_imperialism_in_africa_answers6bzfy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385850/normal_6012255f6b6b1.pdfIn PDF document text
    • http://shoop-fp.ru/5367734647gx6jw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454995/normal_600bd67aadc3b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ninonasoligu.rf.gd/46099372954.pdfIn PDF document text
    • http://weweladegop.rf.gd/rokuguli.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_off0000e720.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE720 5620 bytes
SHA-256: 6d47da74952372f5686f4e20b41f02307deeee1b8cefa944e53edf252be6c5ed
font_01_sfnt_off0000fa3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA3C 11024 bytes
SHA-256: 1b3100e691ada55dfdc7839134222ffbb886ffe169568440c9fcd8fb9e5b0153