Malicious PDF — malware analysis report

Static analysis result for SHA-256 f59a1884a7a4bab9…

MALICIOUS

PDF

69.9 KB Created: 2021-02-11 07:59:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: c5c89eb0c33b03334fe69b5f62952ad0 SHA-1: b9615b211a65f9e8728b15aa7498ad5fc8d7dbce SHA-256: f59a1884a7a4bab9a903e669ba09834339ce503a516b4f72da08ce23910d7bb5
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/123?utm_term=clicker+hero+hacks PDF link annotation
    • https://fadurobudafeme.weebly.com/uploads/1/3/5/9/135959894/2db8498e7ed0.pdfIn PDF document text
    • https://situtewazugigev.weebly.com/uploads/1/3/4/2/134265876/28e9b4af85daae4.pdfIn PDF document text
    • https://memudejiremi.weebly.com/uploads/1/3/1/4/131405951/081ac34d8b08.pdfIn PDF document text
    • https://vixezikuf.weebly.com/uploads/1/3/1/3/131383943/fejanon_pexasunuzov_bujubatek.pdfIn PDF document text
    • http://detonicro.website/5bseru.pdfIn PDF document text
    • http://xagimovuroj.22web.org/anniyan_tamil_movie_songs_free_tamilwire.pdfIn PDF document text
    • https://cdn.sqhk.co/vabedesi/g6ie9ih/piano_keyboard_online_price.pdfIn PDF document text
    • https://cdn.sqhk.co/zubavagi/igieAtp/pumpkin_carving_tools_meijer.pdfIn PDF document text
    • https://zebazowis.weebly.com/uploads/1/3/4/3/134310266/bdb7d1d0c09c16f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lizomepikoxi.epizy.com/ludikuvaxusezemurez.pdfIn PDF document text
    • http://lapesuzimu.epizy.com/3150264676.pdfIn PDF document text
    • http://ridupokibi.epizy.com/teverudupawilorovametigom.pdfIn PDF document text
    • http://nunoxemimo.rf.gd/adolescent_anxiety_worksheets.pdfIn PDF document text
    • http://segixiw.epizy.com/panel_zone_deformation.pdfIn PDF document text
    • http://gigezevozaf.epizy.com/amortisation_schedule_template.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_off0000d202.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD202 4856 bytes
SHA-256: 874fbd266f04bd5d8d3bbcc75f7952185a48ef7442ba858431566cfede3afe1e
font_01_sfnt_off0000e27b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE27B 12396 bytes
SHA-256: c2443be79ff77ba5ce9bca4f84b7e992bac5d3e3899a256030a688c7f1e9b211