Malicious PDF — malware analysis report

Static analysis result for SHA-256 92676dde6e49e78f…

MALICIOUS

PDF

73.4 KB Created: 2021-03-06 23:06:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3237aa3eec0615241544fe1fb1039ee2 SHA-1: 59ff06e5060f8344e3e98f0f82e591fae48bef79 SHA-256: 92676dde6e49e78fdccecdea2aef0094b1b8c6e8911756cc681e36436de064e9
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://zajinet.ru/award?keyword=how+to+put+punctuation+in+dialogue PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4418987/normal_600fa668e3373.pdfIn PDF document text
    • http://eurozone.pro/keravuvesokivegea2if9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476142/normal_5fed659ee0267.pdfIn PDF document text
    • https://figusemaf.weebly.com/uploads/1/3/2/6/132682639/kujaforedederinifok.pdfIn PDF document text
    • http://oblakova.ru/how_do_i_update_my_tivo_bolt_softwares4r6a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446380/normal_601ec7fe0173a.pdfIn PDF document text
    • https://cdn.sqhk.co/jiwonukunav/giijRqD/car_race_game_typing.pdfIn PDF document text
    • https://cdn.sqhk.co/fakujodi/P1hcvvA/kesaburize.pdfIn PDF document text
    • http://hookup153.space/90263923651uyc5a.pdfIn PDF document text
    • https://giromazipudu.weebly.com/uploads/1/3/1/4/131453901/cfc42c1.pdfIn PDF document text
    • http://noxugimeto.iblogger.org/what_is_quantum_mechanics_in_physics.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/peveziwoguxuzam/auditoria_informatica_de_comunicacion_y_redes.pdfIn PDF document text
    • https://s3.amazonaws.com/kozewuposoridil/bostitch_sb-1664fn_not_firing.pdfIn PDF document text
    • https://s3.amazonaws.com/tasufagijaremo/69145666066.pdfIn PDF document text
    • http://wexavow.epizy.com/fokewikixejizezewa.pdfIn PDF document text
    • http://befadiw.rf.gd/58417967375.pdfIn PDF document text
    • http://lapakak.rf.gd/google_adwords_fundamentals_exam_answers_october_2018.pdfIn PDF document text
    • http://zikinevubebera.epizy.com/kushies_bassinet_fitted_sheet.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_off0000e376.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE376 5020 bytes
SHA-256: 79565ca6eeb6546d5304956ae94fed0fbeb2ac3a6e8e9b80e051be7f2b9a4006
font_01_sfnt_off0000f4b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4B5 10524 bytes
SHA-256: b4b447e96c0575896fa1a37e9b2286e2e1ab9b91c74c871893cbff9e68322c31