Malicious PDF — malware analysis report

Static analysis result for SHA-256 1db8c8b99fa5b572…

MALICIOUS

PDF

71.9 KB Created: 2021-02-25 10:36:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 2767f9b030fcee7f9955afba29bde7ce SHA-1: f00843c54d4484862c684caec5dde700a0345a9c SHA-256: 1db8c8b99fa5b572825681825a49038c8a9d2d1b66ce02ea948b55e2a2025f44
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/award?keyword=physics+151+lab+manual+answers PDF link annotation
    • http://harmony-market.ru/74940368757oej49.pdfIn PDF document text
    • https://cdn.sqhk.co/selodiro/cFivWwD/poxavolakugu.pdfIn PDF document text
    • http://xazoxaruxilovo.iblogger.org/table_of_contents_example_template.pdfIn PDF document text
    • https://cdn.sqhk.co/lojosexotak/9jiidgc/clash_royale_hack_free_gems_generator_no_survey.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368251/normal_6019cca9e78c2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422392/normal_5fe074bfeb929.pdfIn PDF document text
    • http://tvoyoproc.fun/lozekisodiruvukojeponaztmlg.pdfIn PDF document text
    • https://cdn.sqhk.co/kajurineg/hcjbghy/sweet_fruit_candy_game_download_for_pc.pdfIn PDF document text
    • http://powerhdniy.space/6334024962654d07.pdfIn PDF document text
    • http://letufemew.22web.org/nature_s_answer_saw_palmetto_extract.pdfIn PDF document text
    • http://heleogose.online/chromedriver_selenium_filebbigw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454299/normal_5ffb65ffb7645.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366309/normal_6021d54fb8293.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373755/normal_6030901ae1c69.pdfIn PDF document text
    • http://firstsecu-paypal.com/super_android_17_phy7miy7.pdfIn PDF document text
    • http://1xbet-registrat.site/chevy_malibu_2012_manual6bxwj.pdfIn PDF document text
    • http://lemovifi.iblogger.org/panasonic_tv_blinking_red_light_2_times.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501509/normal_5fdb58820f0b0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468871/normal_5fcc5e324106e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465128/normal_5fdd3e978758e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sirusuve.epizy.com/apowersoft_android_recorder.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_off0000db62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB62 5552 bytes
SHA-256: f2ed1624c526e586ce1f59960f973ef73926da4d3594e4abd08c757d46379368
font_01_sfnt_off0000ee3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE3C 10560 bytes
SHA-256: 029c7996f3bf0e42fe918a979cacb8127160c61c9cc2d620b0f611c9dcb53b4a

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