Malicious PDF — malware analysis report

Static analysis result for SHA-256 b37960c4ecadeed2…

MALICIOUS

PDF

73.3 KB Created: 2021-03-04 02:46:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0f6f603b2e2c7f793484beb3d4b512c0 SHA-1: af6bca5d881126cf20d1df0924f115161a581039 SHA-256: b37960c4ecadeed24367f698ed4257b80c77c5ccb5ede71081cde0fb21c69039
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://bologen.ru/123?utm_term=lord+of+flies+book+summary PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4367621/normal_5ff11584bde02.pdfIn PDF document text
    • https://cdn.sqhk.co/dosojegomugu/hAgejde/french_nails_designs_2019.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419832/normal_5fd0834502f81.pdfIn PDF document text
    • https://cdn.sqhk.co/zibomevuguli/hoJut6M/earth_3d_model_project.pdfIn PDF document text
    • https://cdn.sqhk.co/pubodegosog/ieicjtW/gameboy_games_for_sale_near_me.pdfIn PDF document text
    • http://papotupeti.iblogger.org/78045383984.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455179/normal_6026d38652a69.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zelejiv.epizy.com/57328021562.pdfIn PDF document text
    • http://pubilovojut.epizy.com/33011551725.pdfIn PDF document text
    • http://xomosim.epizy.com/rupugufudi.pdfIn PDF document text
    • http://suvemavukefejig.epizy.com/how_to_change_ink_cartridge_hp_deskjet_f4580.pdfIn PDF document text
    • http://bexadujozopu.epizy.com/lowurozudaf.pdfIn PDF document text
    • http://baniteb.epizy.com/actuary_exam_p_study_guide.pdfIn PDF document text
    • http://wunikuwikefa.epizy.com/vitatufiramegud.pdfIn PDF document text
    • https://s3.amazonaws.com/genedesowul/dutijozikotuzitajuboj.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_off0000e2dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2DD 5300 bytes
SHA-256: 2a37a5052b33fc0da341c4af771ed08fc5678d722e790eccf6b577a37ae0d3ce
font_01_sfnt_off0000f4d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4D6 10432 bytes
SHA-256: ff39122a268a0d87c125164cd9802f9a4822b107127801c6a6ffc1d9b8e94dfe