Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc5e83a96001c88a…

MALICIOUS

PDF

73.4 KB Created: 2021-01-30 04:56:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: a1b86ed5c7ed5abf9bc3ee546d6a3d8f SHA-1: 1f88340c189b2d75c817a50670355a6249799530 SHA-256: dc5e83a96001c88ab830b9e7af31985f1fe65042675a282f57bd2e6f9178eb13
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/123?utm_term=boomer+natural+wellness+stock+price PDF link annotation
    • https://cdn.sqhk.co/rinovizifim/jibOpgh/doxenilop.pdfIn PDF document text
    • http://itravelgr.com/jivinolefelosepegph1z.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470832/normal_5fee6ff9011d7.pdfIn PDF document text
    • https://cdn.sqhk.co/xederebat/hr3jehg/bisad.pdfIn PDF document text
    • http://islta.fun/232678301793wwl4.pdfIn PDF document text
    • https://cdn.sqhk.co/vivepovugeli/aDijrhg/91947856506.pdfIn PDF document text
    • http://copyright-services-us.com/zumuzajarekjdxjd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410000/normal_60003428b9b22.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375890/normal_600077573478a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://betesemimototi.rf.gd/77184555066.pdfIn PDF document text
    • http://luwulifinuneti.epizy.com/formation_of_sf6_hybridisation.pdfIn PDF document text
    • http://pekagotikoweguf.epizy.com/report_d_chance_prt_immobilier_cic.pdfIn PDF document text
    • https://s3.amazonaws.com/sepawi/biped_animation_free.pdfIn PDF document text
    • http://bikikifuxax.epizy.com/lost_apple_tv_remote_android.pdfIn PDF document text
    • https://s3.amazonaws.com/ponivotigegepub/98585994197.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_off0000dfad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFAD 5284 bytes
SHA-256: 3ce5fb03bf833b43f93b94b3b5ffe9ac5352ead80b81c1937b88393a0b7fb57d
font_01_sfnt_off0000f19f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF19F 11768 bytes
SHA-256: dff9743192cbe9b2db2b6d82e73f02fb1ddd88fef79aa2ca295c0ac7215bfe7e