Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaf21bad927352e4…

MALICIOUS

PDF

73.2 KB Created: 2021-03-04 22:58:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5067c734700b84ca24a648247a0fcce0 SHA-1: 1409e05e6234573b2cc2d6e5e6a24ce6051c7a51 SHA-256: eaf21bad927352e4ce4c497a47a5275110e453d204735a27d28af0bef64a46b5
186 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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://soxebez.ru/award?keyword=cuanto+es+un+metro+en+centimetros PDF link annotation
    • http://jorowijedo.mywebcommunity.org/med_el_sonnet_listening_check.pdfIn PDF document text
    • https://cdn.sqhk.co/mozozezowos/L5KFjfw/96392805780.pdfIn PDF document text
    • http://vifezitenof.getenjoyment.net/63147155141.pdfIn PDF document text
    • https://nidikibadut.weebly.com/uploads/1/3/1/4/131453007/be919daa8021f9.pdfIn PDF document text
    • https://cdn.sqhk.co/tojofelekob/ZthgFPz/best_square_toe_black_cowboy_boots.pdfIn PDF document text
    • http://guzexesuge.mypressonline.com/is_there_a_sequel_to_harry_potter.pdfIn PDF document text
    • https://cdn.sqhk.co/wufevinek/jeqUQjb/30896133137.pdfIn PDF document text
    • https://tuwebuliwarukor.weebly.com/uploads/1/3/5/4/135400964/logad_jabiduzuziguxip.pdfIn PDF document text
    • https://cdn.sqhk.co/gapebeve/hHuhcGf/nuzusorazuzesobaposipo.pdfIn PDF document text
    • https://cdn.sqhk.co/lofakekaf/igdk5St/shooting_target_stands_diy.pdfIn PDF document text
    • https://cdn.sqhk.co/reruzemafow/ih4icge/77591148744.pdfIn PDF document text
    • https://cdn.sqhk.co/niduzabunu/LgHhfl0/ludikezeruginadopapezosus.pdfIn PDF document text
    • http://vofufime.mypressonline.com/66700736377.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wajodojizofe.epizy.com/zapipoxamafas.pdfIn PDF document text
    • http://kemesuxaw.myartsonline.com/lonely_planet_ebook_usa_planning_map.pdfIn PDF document text
    • http://garulolit.rf.gd/50977957477.pdfIn PDF document text
    • http://nadadeze.epizy.com/7027020988.pdfIn PDF document text
    • http://pifazudiso.rf.gd/vmware_vcenter_server_appliance_6._5_ova.pdfIn PDF document text
    • http://defixudopa.rf.gd/79433682252.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_off0000e066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE066 4820 bytes
SHA-256: 5fee83707f6898e73863f0fae7df5364967a82c22e535e4c41d1b904aade9543
font_01_sfnt_off0000f0ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0AC 11504 bytes
SHA-256: bb879b94f590c54cabdf8022117de0cbe101fcbbf61be29f47bf16facb2656fe

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