Malicious PDF — malware analysis report

Static analysis result for SHA-256 c02ac34bad577d33…

MALICIOUS

PDF

73.9 KB Created: 2021-02-23 16:10:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 6476a4f2e229c01a1a1acd09de61b782 SHA-1: ddc8dc8bc6e46afb72b230a80fbfd8811e204001 SHA-256: c02ac34bad577d339ae9111ab6a84c80d5aaa1cae73bce31358b6e186b68ca7c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://druttle.ru/strik?utm_term=what+is+the+meaning+of+social+impact+assessment PDF link annotation
    • http://metazoaapc.fun/tyt_th-uv8000d_manual_greekg81x7.pdfIn PDF document text
    • https://cdn.sqhk.co/pizililiv/hlifhhJ/wesogazemiz.pdfIn PDF document text
    • https://cdn.sqhk.co/niserutom/L3Iha5p/pinball_fantasy_download_free.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419628/normal_5fd7dc6f109dc.pdfIn PDF document text
    • https://cdn.sqhk.co/tefozakozup/hhhjPhi/wogotam.pdfIn PDF document text
    • http://aromaita.space/dadufogorijepakotosauzn39.pdfIn PDF document text
    • http://biomanix.best/sobasonuf2a6j0.pdfIn PDF document text
    • https://cdn.sqhk.co/woselukafo/6hihdjc/90677277706.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454820/normal_5fd74f6dc215a.pdfIn PDF document text
    • https://cdn.sqhk.co/vipabure/NEhdb3W/little_alchemy_game_walkthrough.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368949/normal_60021b0b8b044.pdfIn PDF document text
    • http://particulieres-societegenerale.best/sozalarazukakasuriteki5x764.pdfIn PDF document text
    • http://omynutural.space/inter_1st_year_textbooksesp9a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418379/normal_6024aa940ce4e.pdfIn PDF document text
    • http://yogist.fun/gelalegarizumo3nl38.pdfIn PDF document text
    • http://3gusevshop.space/information_meaning_in_assamesefnsi3.pdfIn PDF document text
    • http://dommasters.site/354807767699c2i9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pidufozu/7800391193.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_off0000e0f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0F8 5344 bytes
SHA-256: 56918a19e977d1fda7108c43cd179794bf7bbef49fc1a02be1d76e7ac7cd5de3
font_01_sfnt_off0000f31d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF31D 11592 bytes
SHA-256: 8d77fc842ebd44dc62577faa4c2f3bcdfd3f908566cdf6f75de59d3e2ca5e244