Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb0dcfe9a2f102f0…

MALICIOUS

PDF

74.8 KB Created: 2021-02-15 01:02:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a6c30d563199129be92e2b953f0c3ce0 SHA-1: 88c5964df712cdb83a358163cb52e3cb1e21fdf7 SHA-256: bb0dcfe9a2f102f047136ec31783b1ed5ae13f5aeea2c03f1162640b8725768d
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://jottigo.ru/123?utm_term=city+national+arena+reopening PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4485296/normal_5fe9713ba1c02.pdfIn PDF document text
    • http://trenolgia.buzz/john_money_concepto_de_generojjnra.pdfIn PDF document text
    • http://kind-insta.site/bulezemujo7a0u9.pdfIn PDF document text
    • http://kukushka.space/machine_rear_delts_reverse_pec_deckpjcrl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489412/normal_5fc96a2f9b1e1.pdfIn PDF document text
    • http://lnstagramverifiedbadge-media.com/ingenuity_bassinet_sheet_size9doqb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474719/normal_60245afd09018.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410432/normal_5fd792d8e5364.pdfIn PDF document text
    • http://instacopyrighthelpteam.com/bipabozapadunopazimenuq2y5e.pdfIn PDF document text
    • http://paxebuli.iblogger.org/total_war_warhammer_empire_campaign_guide.pdfIn PDF document text
    • https://gugivubur.weebly.com/uploads/1/3/4/3/134390132/puwurufaxudoxe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486987/normal_5fc8a4b09f0b7.pdfIn PDF document text
    • https://tiforunu.weebly.com/uploads/1/3/1/4/131437018/borelaganu_lagogikofo_sapizigon_zubesamew.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zewedazogiwake.rf.gd/xujonazexovasiwuv.pdfIn PDF document text
    • http://nawexox.epizy.com/boxekulusuwalob.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_off0000e87c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE87C 4816 bytes
SHA-256: 256e4f3c53851949df378ee40d482360987f2221b443ae55c1f03640df15b61e
font_01_sfnt_off0000f8f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8F4 11216 bytes
SHA-256: 6984821a75c1b1aef65c87d02de24f6404e5667f3b36ef515033e4873ba45d0e