Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f8c32f092c2dbb6…

MALICIOUS

PDF

72.8 KB Created: 2021-03-04 11:31:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 26180f533d1804069d4c99488847766a SHA-1: e7cecfcbde95751dac2fa1d38c5a8ed87a7692b8 SHA-256: 7f8c32f092c2dbb6621a2e73b4bfc48640409a5858966a69d78acbefaf44f910
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://resalured.ru/award?keyword=qualitative+research+for+education+an+introduction+to+theories+and+methods+5th+edition+pdf PDF link annotation
    • http://jepenufi.getenjoyment.net/90931110300.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369664/normal_5fe8a707c6615.pdfIn PDF document text
    • http://graatorama.space/best_online_games_for_android_mobilevo3tm.pdfIn PDF document text
    • http://lagulesuko.medianewsonline.com/basamon.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454052/normal_5fed6a337259a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445333/normal_600c9b549d603.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404969/normal_603a40bb23870.pdfIn PDF document text
    • http://raguvigawak.mypressonline.com/datoxaxowemu.pdfIn PDF document text
    • http://bapupozizevose.22web.org/vasetorupirevaduk.pdfIn PDF document text
    • https://cdn.sqhk.co/woluzadeviv/jbjfihe/xevuvoninepopaputaxikupas.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dozuxix.myartsonline.com/supernatural_castiel_gay.pdfIn PDF document text
    • http://bujazux.rf.gd/kuwibukusi.pdfIn PDF document text
    • http://tobikinos.onlinewebshop.net/vowedilusaga.pdfIn PDF document text
    • http://zezatavaveb.epizy.com/mudesunotumokupugotox.pdfIn PDF document text
    • http://mogujuku.epizy.com/jugular_venous_pulse_waveform.pdfIn PDF document text
    • http://vilatelisoto.onlinewebshop.net/dark_souls_artorias_of_the_abyss_bosses.pdfIn PDF document text
    • http://nowimirozox.atwebpages.com/formula_for_isosceles_trapezoid_perimeter.pdfIn PDF document text
    • http://mulazukaga.rf.gd/73233746739.pdfIn PDF document text
    • http://xijejuvi.myartsonline.com/oracle_database_11g_sql_commands.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_off0000ddbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDBF 5640 bytes
SHA-256: 8a2ad8367a18cb2b5660264706d034dfac582eee14e5b1d23af7faf58cbfd237
font_01_sfnt_off0000f0cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0CF 10700 bytes
SHA-256: c1c7380f959dcad43354d73df1185930d69c5db7ffd94b910a023887be2763a0