Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ad2c4d3dfdba3ef…

MALICIOUS

PDF

72.5 KB Created: 2021-02-16 00:20:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a25c50d58ef9e94d78912527670bfd4e SHA-1: e3695f4fa482a447c76eedafbae4a7a38c9efedd SHA-256: 4ad2c4d3dfdba3ef154612b6e54833788ece2ce3526d9eaa2a72324641fa2c7e
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://bologen.ru/wix?keyword=abaqus+example+problems+manual+vol+2 PDF link annotation
    • http://mewebewenuzotez.iblogger.org/82235463510.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385880/normal_5fe864794c36b.pdfIn PDF document text
    • https://cdn.sqhk.co/pimidima/icgijcC/formula_1_championship_edition_ps1.pdfIn PDF document text
    • https://cdn.sqhk.co/bozutebux/qUahjid/6956763041.pdfIn PDF document text
    • https://cdn.sqhk.co/duponetix/gXihUhd/siberian_white_tiger_habitat.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388818/normal_5ff804e37f2a1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426816/normal_5fed6488d39ad.pdfIn PDF document text
    • https://cdn.sqhk.co/noxibogalu/Liigdjc/make_your_own_musical_instrument_kit.pdfIn PDF document text
    • http://getarileduvuda.22web.org/lewonuna.pdfIn PDF document text
    • https://cdn.sqhk.co/sodelaranu/OgdChje/cube_life_island_survival_crafting_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/kafufojugure/w7ifJic/lizexo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456116/normal_5fd1e53c506ae.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://panafinuniro.epizy.com/bateria_musical_full_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxuxemu/vmware_tools_iso_for_ubuntu_14._04.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/best_app_for_cinematic_video_android.pdfIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/83704092230.pdfIn PDF document text
    • http://milodip.epizy.com/kewosilasazifemikanedipa.pdfIn PDF document text
    • http://ribaxekag.epizy.com/ruroduselux.pdfIn PDF document text
    • http://wosunitiguzivef.epizy.com/adobe_reader_offline_installer.pdfIn PDF document text
    • http://kodigejo.rf.gd/lumopovefamosu.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_off0000dd90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD90 5480 bytes
SHA-256: 4023a7b4489f0d94499a5d8fec868cc4d76ab33363df79ed1439e0e776525402
font_01_sfnt_off0000f026.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF026 10572 bytes
SHA-256: c0ed00d6921051d9572fe512cdca7e1925ac25a6bb1abf7d4779b867f010762d