Malicious PDF — malware analysis report

Static analysis result for SHA-256 58420c670844c30d…

MALICIOUS

PDF

65.4 KB Created: 2021-02-03 12:46:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: bf5ca56bbb1ee4e9b30c82151d05e950 SHA-1: 96f345750f9fd083dad1f5c675d63b31ccd744dd SHA-256: 58420c670844c30d3d6acf8f48f344fc27dbf31545b1a401ef176a76d482f5bb
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/123?utm_term=capitol+theater+seating+chart+clearwater PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4448976/normal_6002106463cc9.pdfIn PDF document text
    • http://dofuluxaruze.22web.org/gobowobir.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404122/normal_5fdeb35192042.pdfIn PDF document text
    • http://puwuditufu.22web.org/math_is_fun_time_worksheets.pdfIn PDF document text
    • http://gezudozu.iblogger.org/form_builder_angular_8_example.pdfIn PDF document text
    • https://cdn.sqhk.co/busanurutar/lgiiiZ9/toon_blast_game_app.pdfIn PDF document text
    • http://jaxebememapi.iblogger.org/causas_de_contaminacion_del_aire.pdfIn PDF document text
    • https://volorizog.weebly.com/uploads/1/3/1/0/131070051/8041237.pdfIn PDF document text
    • http://gexedufez.22web.org/53009031844.pdfIn PDF document text
    • http://dusosax.66ghz.com/google_hangout_app_apk.pdfIn PDF document text
    • https://tezifotunojoke.weebly.com/uploads/1/3/0/7/130776805/metugavejilu.pdfIn PDF document text
    • https://cdn.sqhk.co/vadetegubufo/mxhhYex/top_10_world_war_2_history_books.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463272/normal_5fdb0bf8bb682.pdfIn PDF document text
    • https://cdn.sqhk.co/metusoteliza/fqhbhc3/yellow_light_on_iphone_while_talking.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jamosafiseb.rf.gd/menafox.pdfIn PDF document text
    • http://jopatodorijapu.epizy.com/yellow_claw_dj_turn_it_up.pdfIn PDF document text
    • http://wiraxoxepopiret.rf.gd/coping_saw_for_sheet_metal.pdfIn PDF document text
    • http://xafinoligu.epizy.com/davifunezanixukes.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_off0000c339.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC339 5192 bytes
SHA-256: 88757f438ee5e68a8a1d892c13ca9e538628e92713f17e01534c6e77d788cbd5
font_01_sfnt_off0000d4e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4E9 10640 bytes
SHA-256: 92a05509dca3b5a58393591aaad67875648f9b680520500bae9103a72b5cd18a