Malicious PDF — malware analysis report

Static analysis result for SHA-256 072ecddc76433953…

MALICIOUS

PDF

78.0 KB Created: 2021-03-04 04:40:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 80bb6c00b9373660ee410bec9ebed8a5 SHA-1: 629cddc766396785158eb63eedd2e67bc7cb7178 SHA-256: 072ecddc76433953784bef1b69ff25377d0ce92c87486e3e82246f08ec9366ba
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://nipisod.ru/wix?keyword=4shar%25C3%25A9d+apk+download+for+android+2.3.6 PDF link annotation
    • https://cdn.sqhk.co/tobamozusaj/MThchhi/41787790079.pdfIn PDF document text
    • https://xevefozivoro.weebly.com/uploads/1/3/5/3/135339272/vamewovorirugot-sabodepumokabu.pdfIn PDF document text
    • http://bridgecommerce.com/lajezarivefovumino1wg3s.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382782/normal_5ff13e285c8ed.pdfIn PDF document text
    • https://cdn.sqhk.co/jesupasuzoku/3vRgfhi/fear_the_walking_dead_season_6_cast.pdfIn PDF document text
    • http://magicwoolshop.com/pdf_converter_small_size_download7ovsw.pdfIn PDF document text
    • https://xereritotof.weebly.com/uploads/1/3/1/0/131070340/fapuful.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417128/normal_5fcf28789dd5e.pdfIn PDF document text
    • https://cdn.sqhk.co/nebafori/yhgwB3R/hexagon_board_game_cafe_calgary_ab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443576/normal_5fd87aeb08469.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420454/normal_601e24dbb138b.pdfIn PDF document text
    • http://getliterate.online/8k6dxy.pdfIn PDF document text
    • https://poxomovuru.weebly.com/uploads/1/3/1/3/131381772/8474056.pdfIn PDF document text
    • http://termometr-medikal.site/75790892956szfng.pdfIn PDF document text
    • https://gewilowada.weebly.com/uploads/1/3/0/7/130776716/ed16dd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000f20f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF20F 5900 bytes
SHA-256: 1aa552b3e48fcc39e6cc67d324bca01f4827f1ba062b6a19af8be3cadd34a4e2
font_01_sfnt_off000105f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105F2 10240 bytes
SHA-256: 95e19757fa5a525e65efab4456d5a60d5203e0de7f29c2837d74443afbc72cf0