Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f4fb8d4eea2f19c…

MALICIOUS

PDF

73.2 KB Created: 2021-02-15 03:41:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: f844847be28132d341cf62ed3f0284ef SHA-1: 2ee5125af6294e5f567072f5a9e5f9ef89c6cab5 SHA-256: 4f4fb8d4eea2f19cbe655c252272b26094e50479a41d18fdb4b97eda57b7292a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wix?keyword=lg+ltcs20220s+home+depot PDF link annotation
    • https://nibapexi.weebly.com/uploads/1/3/0/9/130969889/zujipuxexap.pdfIn PDF document text
    • http://iminn.ru/gikinole2oz99.pdfIn PDF document text
    • http://pihodze.com/2220967144654jec.pdfIn PDF document text
    • https://judozonax.weebly.com/uploads/1/3/1/4/131454501/xobowisewap.pdfIn PDF document text
    • http://silkhfig.bid/902630968242cr94.pdfIn PDF document text
    • https://zikegebuner.weebly.com/uploads/1/3/4/8/134856814/dab7442234.pdfIn PDF document text
    • http://azalea.store/1_bachillerato_english_exercisesnn3pl.pdfIn PDF document text
    • http://healthytrands.com/fizozudozarizovijus453e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://doxinaxa.epizy.com/commander_sk_manual_parameter_list.pdfIn PDF document text
    • https://s3.amazonaws.com/divikufifir/manualidades_para_nios_de_primaria_para_imprimir.pdfIn PDF document text
    • http://darozux.epizy.com/free_compound_words_worksheets_grade_6.pdfIn PDF document text
    • https://s3.amazonaws.com/lakujusitejojet/99528001914.pdfIn PDF document text
    • http://zekumom.epizy.com/sheet_pan_chicken_thighs_and_red_potatoes.pdfIn PDF document text
    • http://nuvijexuwafado.rf.gd/macpherson_report_key_recommendations.pdfIn PDF document text
    • https://s3.amazonaws.com/xupizewuxere/gce_o_level_maths_2018_answers.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_off0000e2d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2D2 5396 bytes
SHA-256: 97e563aa9923aee6de2cf34118a15df6db690f0843e5890019f7b39fe0a42235
font_01_sfnt_off0000f51b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF51B 10256 bytes
SHA-256: 7256ebb79e540306bd2aaf8283e46f5fa7ae781efda2e945f1289bc057d2fc44