Malicious PDF — malware analysis report

Static analysis result for SHA-256 f989406931045819…

MALICIOUS

PDF

72.4 KB Created: 2021-02-17 19:35:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 69d2f9b7af4a3cb7d5e6c4ce4ab15e80 SHA-1: 729a2b509f086481834acc57daa3ec758f629516 SHA-256: f9894069310458194ed0d9ea6501ec3ae79b8f751d30615130f500b37c4bb243
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=how+much+is+dunkin+donuts+stock+per+share PDF link annotation
    • https://monokuzofo.weebly.com/uploads/1/3/2/7/132741222/6c7df85658adf0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424025/normal_6020b4fd76df3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388617/normal_601f8f937e563.pdfIn PDF document text
    • https://pabametutib.weebly.com/uploads/1/3/5/3/135317572/1ec3a8f.pdfIn PDF document text
    • https://nobewiga.weebly.com/uploads/1/3/5/3/135315034/9558337.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402720/normal_6023d925e5493.pdfIn PDF document text
    • http://limecash.xyz/foldable_leaflet_template_publisher0i7yn.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495551/normal_6000562538fae.pdfIn PDF document text
    • http://giocodigital.website/67605302313bt8l9.pdfIn PDF document text
    • https://fidojosamesevuf.weebly.com/uploads/1/3/4/5/134594598/rudegamikujab_gosexakuxurituk_fajonekexave_bovut.pdfIn PDF document text
    • http://discount50it.pro/96090145959ejtho.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zewogukanonudut.epizy.com/coshocton_beacon_morning_report.pdfIn PDF document text
    • https://s3.amazonaws.com/dafumuxitupav/11253180463.pdfIn PDF document text
    • http://wepaxilex.epizy.com/jeponivezuzov.pdfIn PDF document text
    • http://jowatazurusu.epizy.com/xudupuj.pdfIn PDF document text
    • http://raronamivado.epizy.com/android_developer_options_animation_speed.pdfIn PDF document text
    • http://xovipofeguz.epizy.com/38474031477.pdfIn PDF document text
    • http://parubixus.rf.gd/navodalorokoluru.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_off0000dcc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCC9 5400 bytes
SHA-256: 85025ff8c48eeb221d08d4076628532352d572154ebac5c8380b12c715738f22
font_01_sfnt_off0000ef09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF09 10988 bytes
SHA-256: 43cd8f7b56dc7f9b326fecf61c4ae429149c5d122d9591b4fa1c86862ca12f90