Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b425ad145aa861f…

MALICIOUS

PDF

73.1 KB Created: 2021-02-18 19:50:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f501a6170f86f0c6d3d4c7703757b8e8 SHA-1: a165ff2be92f0847aa0f4d9e191e59ca0ffccfa2 SHA-256: 5b425ad145aa861f253b5598554b048a9ed1c84ce41813628f045c01c0efb51a
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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://maypoin.ru/aws?utm_term=kawasaki+jet+ski+engine+identification PDF link annotation
    • http://gaxotewaboka.iblogger.org/jingle_bells_instrumental_song.pdfIn PDF document text
    • https://pinagoremomaj.weebly.com/uploads/1/3/0/7/130738806/lerewowipupebogusa.pdfIn PDF document text
    • https://witowufagefalob.weebly.com/uploads/1/3/0/7/130738848/4657493.pdfIn PDF document text
    • https://xulakuvoloja.weebly.com/uploads/1/3/0/8/130813987/selokakamupuma.pdfIn PDF document text
    • http://xaxikobovivo.22web.org/endocrine_society_guidelines_menopause.pdfIn PDF document text
    • https://dubibezu.weebly.com/uploads/1/3/1/4/131453247/murexebe.pdfIn PDF document text
    • http://golesaluwo.66ghz.com/bradley_cooper_oscars_2019_performance.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rumajajoneder.rf.gd/rujazasaxuxulo.pdfIn PDF document text
    • http://nidawijonag.rf.gd/60944839184.pdfIn PDF document text
    • http://vutafinaragod.rf.gd/559873323.pdfIn PDF document text
    • http://wixudilasajigil.rf.gd/harga_menu_platform_78.pdfIn PDF document text
    • http://nixevafuzija.epizy.com/26242549538.pdfIn PDF document text
    • http://volafipodu.rf.gd/internship_report_ppt.pdfIn PDF document text
    • http://tapimezekuboj.rf.gd/90074716678.pdfIn PDF document text
    • http://gejonutopufone.rf.gd/xarawupepizabamoxi.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_off0000e151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE151 5260 bytes
SHA-256: 885c10b05fdc77ba8e223aac130404c20a3facf6d33cb4a8b560a110d63345a2
font_01_sfnt_off0000f36e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF36E 10632 bytes
SHA-256: 507a69e7b230b7ff41d6881e9bf824a4cc3eadf9a7abf57518751454c970c447