Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0b3cab9b7f39103…

MALICIOUS

PDF

83.6 KB Created: 2021-02-18 22:21:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b8bda4e23044f329fd4cbc09e80970f9 SHA-1: f66d817603dd0d6e559a1cd59634f923e603cf66 SHA-256: e0b3cab9b7f39103e75fcd8babefc273f7c3e3dc2ffbd8b2f78c44a010232d72
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://jacksth.ru/aws?utm_term=what+is+the+cheapest+dirt+bike+brand PDF link annotation
    • http://spainsale.pro/custom_rom_redmi_note_4_nikeljbr9u.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457305/normal_5fe27a8b00f83.pdfIn PDF document text
    • http://mmamba.ru/kebiwibigigenosigufavane53eim.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384835/normal_5fe8b89b9f135.pdfIn PDF document text
    • http://voicebftyi.com/schwinn_deluxe_bicycle_child_carrier_manual5er04.pdfIn PDF document text
    • http://gazzsheff.xyz/master_of_politics_mod_apkxdcq0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419628/normal_5fd7dc6f109dc.pdfIn PDF document text
    • http://ooovseanalizi.ru/b._a_k_full_form5c28f.pdfIn PDF document text
    • http://save50.pro/nemademuloloun8rj.pdfIn PDF document text
    • http://stixlife.info/dadawijurodereribujerezx4rce.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wuxodiza.epizy.com/tewazakufigebilale.pdfIn PDF document text
    • http://kidaxuv.epizy.com/memiwugekolakirum.pdfIn PDF document text
    • http://potopaf.epizy.com/117_bus_timetable.pdfIn PDF document text
    • http://bavizajo.epizy.com/60001132943.pdfIn PDF document text
    • http://nipinukajuxude.epizy.com/wadiveleden.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_off00010c91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C91 5344 bytes
SHA-256: d272c3ebcb6151458ad56dcf8626f00a8c33546bf080c3455bfb638a8b084116
font_01_sfnt_off00011ebf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EBF 10364 bytes
SHA-256: 95349b53d9d7fa394856e0229a154a27953ec016bf718e784ba4048e3015d014