Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c2bfd2189204c1e…

MALICIOUS

PDF

67.8 KB Created: 2021-02-22 16:01:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f9f40226961f6d52e689f826322bf218 SHA-1: 7277d71a7c94aad96874780b36c0c392e89f9157 SHA-256: 0c2bfd2189204c1e3e9773ee2e0cccaf776fa2cc694e489590753ca530811b17
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wix?keyword=unlv+spring+semester+2020 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4459166/normal_5fcbe0656f0cb.pdfIn PDF document text
    • http://prolac.ru/dukilopajatyhuz.pdfIn PDF document text
    • http://leadtop.co/8587673269aacd1.pdfIn PDF document text
    • https://cdn.sqhk.co/titipubaduw/gchefhe/simple_tv_launcher_android.pdfIn PDF document text
    • https://cdn.sqhk.co/vetelojid/flpzzs6/sword_of_thrones_game_of_thrones.pdfIn PDF document text
    • http://joblanc.xyz/whatsapp_plus_terbaru_2017h635x.pdfIn PDF document text
    • http://tvoyoproc.fun/applied_business_statistics_by_trevor_wegner_3rd_edition_free_download53g40.pdfIn PDF document text
    • http://temilops.xyz/reference_letter_doctor_templatecs8px.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/kagedatabujo/remittance_advice_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/pidojuxagedikavalifu.pdfIn PDF document text
    • https://s3.amazonaws.com/bogijexu/w._h._full_form_in_result.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_off0000cde7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDE7 5252 bytes
SHA-256: 4df36792bc8d44c0f9bf038459235b3c9515f73b2c0d5dade9d296b4947a321e
font_01_sfnt_off0000dfc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFC1 10136 bytes
SHA-256: 54d36a95a2d52bcae8e03f584fae0708e0f854655fe05e9ba4a11b398a4b4a22