Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3c2729a0682db7a…

MALICIOUS

PDF

69.3 KB Created: 2021-02-25 05:22:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 45d366a50c8c91d0b3e7045b3c239dd8 SHA-1: d318ff4b509feaa766aa3b991214a1295e5ba98d SHA-256: e3c2729a0682db7a46c5c865a7eed86b7091b96ccbb851d5bb4e4e0c738fcd95
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://baarspo.ru/wix?keyword=manual+de+organizacion+del+imss PDF link annotation
    • https://cdn.sqhk.co/galudubujuwa/9gcx0kR/toy_of_war.pdfIn PDF document text
    • https://dotanivim.weebly.com/uploads/1/3/4/7/134705276/lorawabifusi.pdfIn PDF document text
    • https://cdn.sqhk.co/javomekoru/pjgfnjh/niwoxox.pdfIn PDF document text
    • https://lidutefavova.weebly.com/uploads/1/3/4/0/134012516/7891013.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407777/normal_5fcbd89a6736a.pdfIn PDF document text
    • https://zipapujemufosir.weebly.com/uploads/1/3/5/3/135392102/kanijepifadabir-zopew.pdfIn PDF document text
    • http://jaralet.getenjoyment.net/rheem_hot_water_heater_installation.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402949/normal_5ff79791ea5bf.pdfIn PDF document text
    • http://lobabinuladeri.medianewsonline.com/87562677684.pdfIn PDF document text
    • https://cdn.sqhk.co/vakanaju/wGDjcaE/k_health_telehealth_primary_care_physicians.pdfIn PDF document text
    • https://basitonivi.weebly.com/uploads/1/3/4/5/134584834/luniliten_rekisi.pdfIn PDF document text
    • http://velavedi.iblogger.org/avisos_de_ocasion_clasificados_el_informador.pdfIn PDF document text
    • http://vamoktin.ru/lupijuqvzqp.pdfIn PDF document text
    • http://afracheat7.xyz/4763112515620sv7.pdfIn PDF document text
    • https://kiwogoro.weebly.com/uploads/1/3/4/6/134635848/firefi.pdfIn PDF document text
    • https://cdn.sqhk.co/jekunesoru/FIhfjbi/71241715320.pdfIn PDF document text
    • http://momentikshop.space/third_form_at_malory_towerswz1jc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jifaradazuzigo.rf.gd/react_native_firebase_notification_android.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_off0000d209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD209 5312 bytes
SHA-256: f20089670dc336eb2acc377f6d46e998a3fce7dcfc6ad48c807303af8f901080
font_01_sfnt_off0000e415.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE415 10576 bytes
SHA-256: e7d5114979e30e5366ed54148b2f23978065348a05baa34323c7935da90bcb6f