Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac5247134fe35a4b…

MALICIOUS

PDF

64.8 KB Created: 2021-02-12 11:28:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: ecc2c303e260ff7cb9bf3be7e056993a SHA-1: d5eb615cd239ac1752ed6ff552c5d32001001c78 SHA-256: ac5247134fe35a4b4f95c0669d6b9ebce31d8a13c04d04a185e5d7008117682d
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://baarspo.ru/wix?keyword=cevsen+pdf+download PDF link annotation
    • https://cdn.sqhk.co/janezewufaj/jcohdjb/21251509079.pdfIn PDF document text
    • https://cdn.sqhk.co/surikuzezun/fgchhip/oconnors_bar_ballycastle.pdfIn PDF document text
    • http://profapp.pro/38080552444rkwb8.pdfIn PDF document text
    • https://puralabeno.weebly.com/uploads/1/3/2/8/132814071/monewiru_fowoke_jefiburedaj_lenipugapuw.pdfIn PDF document text
    • http://meetporte.xyz/blockchain_platform_listwydb8.pdfIn PDF document text
    • https://cdn.sqhk.co/lilokimoz/bXR0Ehi/49030267225.pdfIn PDF document text
    • http://suxawid.iblogger.org/regression_analysis_by_example_3rd_edition.pdfIn PDF document text
    • http://insta-sale.site/solicitud_de_comipems_2019_para_imprimiru6p6s.pdfIn PDF document text
    • http://andyhong.blog/halo_master_chief_collection_xbox_one_achievement_guide2sgrs.pdfIn PDF document text
    • https://subilitukufune.weebly.com/uploads/1/3/4/6/134629352/b29238.pdfIn PDF document text
    • https://cdn.sqhk.co/difixoruze/F11vwia/black_argentine_football_players.pdfIn PDF document text
    • http://winoorama.fun/jimiwutasimuzzorge.pdfIn PDF document text
    • https://merogowaxoku.weebly.com/uploads/1/3/1/0/131069891/8d743a63d26f7c.pdfIn PDF document text
    • http://ig-support-service.com/tumble_dryer_sheets_nzop7qr.pdfIn PDF document text
    • https://cdn.sqhk.co/toridezoxiko/j4Yid0Q/roblox_download_chromebook_os.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wuguwusilabibax.epizy.com/uc_browser_fast_apk_old_version.pdfIn PDF document text
    • http://gedikoti.epizy.com/minecraft_pc_free_1._12.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_off0000c0fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0FE 4996 bytes
SHA-256: 0d279d1e15402ed2cc16a7c651c2e38947ace113142cafbb72cfcfcf30aaa5af
font_01_sfnt_off0000d229.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD229 11096 bytes
SHA-256: 33236efed08667ad95321326e485a2e4811a89cdae6e6dc18c19e2949730a1e3