Malicious PDF — malware analysis report

Static analysis result for SHA-256 384c1f818941da83…

MALICIOUS

PDF

68.8 KB Created: 2021-02-26 03:22:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d794fdef37588c1a7fd12dba09454553 SHA-1: 1c325b2f8d3d89c5c3d54d9401abdb70dc975621 SHA-256: 384c1f818941da83718638132edfa6029b95ba5e519e22f71ef00e70df761459
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/wix?keyword=the+trumpet+of+the+swan+trailer PDF link annotation
    • http://rollernefritmassage.xyz/libros_recomendados_para_nios_de_segundo_gradobudt9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368740/normal_5fee3386b2767.pdfIn PDF document text
    • http://shopsupergood.site/70888986193h6vxo.pdfIn PDF document text
    • http://hesap-al-sat.com/39399720291qtsa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367646/normal_600c03c425470.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384316/normal_5fc7476b1baa7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384461/normal_5fcbe9c87ec9c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418570/normal_6017ad9b64ce8.pdfIn PDF document text
    • http://all-system7.club/fapilininobowadobirlbih.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418993/normal_5febb23a0ef43.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471091/normal_6037b1ef44e9d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376126/normal_60384110b0045.pdfIn PDF document text
    • http://moshon.space/badoo_premium_apk_uptodown7h389.pdfIn PDF document text
    • http://boost-shop.xyz/coleman_powermate_pulse_1850_generator_reviewqcs28.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411228/normal_5fdba31d22e65.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/rebomedug/60115890082.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_off0000d0fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0FC 5180 bytes
SHA-256: 26aa03cb61f1ee9b8dabd07b1d38d5651769a953426845399aff4302d5fbc610
font_01_sfnt_off0000e27f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE27F 10528 bytes
SHA-256: dad98835a66bc62b771b676fe8fc955f3c8eff4c087f54e9e89aaa3a165139ab