Malicious PDF — malware analysis report

Static analysis result for SHA-256 6590da0e21717615…

MALICIOUS

PDF

71.9 KB Created: 2021-02-27 14:25:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e6212887a6efded1cc31bae6f1cef68d SHA-1: 42100e595b7ed3bb988b964ed071e2178a58a5c5 SHA-256: 6590da0e217176150638276ddf837094dbc5bdc50520f98fa7f622e9c9a78ca5
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://botokaw.ru/award?keyword=java+swing+button+color PDF link annotation
    • https://tifevijokob.weebly.com/uploads/1/3/5/3/135351552/a6a3e.pdfIn PDF document text
    • http://itawegan.space/grid_systems_in_graphic_design_by_jokw50v.pdfIn PDF document text
    • http://musofiron.ru/medical_terminology_20205kgnp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450876/normal_603344df0792a.pdfIn PDF document text
    • http://evakuator-uga.ru/pagifebimcuq3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460063/normal_6038241831d96.pdfIn PDF document text
    • https://navuvosukogeguf.weebly.com/uploads/1/3/1/4/131454151/dopusemobabejoxak.pdfIn PDF document text
    • http://firstdoctor.xyz/james_stewart_calculus_5th_edition_solutions_manualzdsuw.pdfIn PDF document text
    • https://cdn.sqhk.co/bokirebi/cjgjdhb/ghost_koi_in_fish_tank.pdfIn PDF document text
    • http://trenketo.buzz/literal_equations_manipulating_variables_and_constants_worksheet_answer_keykqghp.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390329/normal_5fe3c85b5bc42.pdfIn PDF document text
    • https://zabaparadasikid.weebly.com/uploads/1/3/4/3/134317604/f99d547ae367.pdfIn PDF document text
    • http://dfahsdfgjsfg.online/isn_t_it_romantic_2019_parents_guideu9vf9.pdfIn PDF document text
    • https://cdn.sqhk.co/mudonisogub/980hiia/18026830229.pdfIn PDF document text
    • http://forpost-electrica.ru/operations_supply_chain_management_jacobsv8ju6.pdfIn PDF document text
    • http://businessoutsourcing.org/basuwetscqgb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000de91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE91 5248 bytes
SHA-256: 6e87705ed179417a5493b8211402053d5c78c6acaaa2226c5000f4b91c53bed0
font_01_sfnt_off0000f094.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF094 10080 bytes
SHA-256: bce5a427f69558c50bddb8ddba8b08618953eaa41a15e6bf3b09bb9c39623876