Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbb10cdcc19fcc53…

MALICIOUS

PDF

75.0 KB Created: 2021-03-01 18:21:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 6d3c08cd1f1ebd6ccc0098b29b14c938 SHA-1: 5e33cf9072ddc222f6a69d4aed6e702864a1f33e SHA-256: bbb10cdcc19fcc53bc44b75e80562061a7825445e0967f37c0f3d0879a9e9b1f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://xajibur.ru/award?keyword=hojas+de+vida+ejemplos+para+estudiantes PDF link annotation
    • https://cdn.sqhk.co/totafeta/ieQieSX/28580800685.pdfIn PDF document text
    • https://cdn.sqhk.co/rovujesox/giibIhf/narwhal_shark_attack_video.pdfIn PDF document text
    • http://mestikon.online/kunirodutogw7swz.pdfIn PDF document text
    • https://cdn.sqhk.co/figoveraboj/jhc9Fgd/police_officers_shot_july_2020.pdfIn PDF document text
    • http://vermono.site/ias_topper_notes_in_hindi_mediuma2c53.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476924/normal_60126467d9c3a.pdfIn PDF document text
    • https://cdn.sqhk.co/joxonorapa/3haTjad/11127198919.pdfIn PDF document text
    • http://aycotoro7.xyz/badger_5_garbage_disposal_1_2_hp_insinkerator_badger_5_with_corde9emb.pdfIn PDF document text
    • http://barbanapoli.moscow/online_facebook_video_er_ios4j6ux.pdfIn PDF document text
    • https://cdn.sqhk.co/neseleko/imRjfgz/vmod_2_vibrating.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443325/normal_600e86fa12da3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389582/normal_5fe6f6e09c175.pdfIn PDF document text
    • http://xviiivbgz.com/kitumorafijebebokuxekawndg3c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450870/normal_60224684493b8.pdfIn PDF document text
    • https://sakobapo.weebly.com/uploads/1/3/3/9/133999770/7175037.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_off0000e443.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE443 5200 bytes
SHA-256: d68c4984febc0de30e878a6deb32f33d148767e43ae057a2e08d24fa02502443
font_01_sfnt_off0000f5e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5E2 12624 bytes
SHA-256: c145ba1516f77d8e6d41e91554359dfc9230f5df97d96a764ab651ce55162c1a