Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b5041a789f401e0…

MALICIOUS

PDF

69.0 KB Created: 2021-02-17 04:40:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b9ad57acf8f49d2fd0d322605693aa0c SHA-1: dd38bd735d07b62ec373ad2533f60f9b80f92f97 SHA-256: 8b5041a789f401e06177de5e2f1e5cf59de66a2741a534145b01c09e8b0ddf48
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://jacksth.ru/wix?keyword=camp+background+graphic PDF link annotation
    • https://cdn.sqhk.co/letijefa/d6DnEG4/boat_driver_license_mn_appointment.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389370/normal_5fce07765627e.pdfIn PDF document text
    • http://dowelatevitik.22web.org/xadawepuwukanaf.pdfIn PDF document text
    • https://cdn.sqhk.co/rapowipijes/goIjiBy/cheats_for_among_us_phone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485172/normal_602c45e8ea7ee.pdfIn PDF document text
    • https://cdn.sqhk.co/moturira/0wS9b0N/zombie_city_hd_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/vazodowadu/Ojcgggd/xuroxezu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496391/normal_5fe345a53bb2b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456685/normal_601bfa5c46faf.pdfIn PDF document text
    • http://gixegiz.iblogger.org/michelin_guide_hong_kong_macau_2017.pdfIn PDF document text
    • https://cdn.sqhk.co/jukunobegabe/hgCltgh/snake_evolution_timeline.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382953/normal_5fd806b4bfbb1.pdfIn PDF document text
    • https://cdn.sqhk.co/posaleren/mDsjjDQ/fly_wings_mod_apk_2018.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402478/normal_600cf0ee23949.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367668/normal_5fc8bd48e16df.pdfIn PDF document text
    • https://cdn.sqhk.co/malofavu/7ieigib/gadonogijubogex.pdfIn PDF document text
    • https://cdn.sqhk.co/xawobovuji/iijgejf/5988415375.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://zapuwoz.epizy.com/ocean_12_music_free.pdfIn PDF document text
    • http://lurebilowate.rf.gd/79054195628.pdfIn PDF document text
    • http://tosowepexinuf.epizy.com/knauf_insulation_product_data_sheets.pdfIn PDF document text
    • http://kotutuvotijol.rf.gd/myasthenia_gravis_medication_information_card.pdfIn PDF document text
    • http://vosimamasi.epizy.com/best_resume_templates_word_free.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c645.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC645 5188 bytes
SHA-256: 750a24faa664397eff4508da25c9dd5b718ffe9aee46a10d6acac29403116382
font_01_sfnt_off0000d7a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7A5 9696 bytes
SHA-256: b70b0060d85b5b9aade4876b51b055abdd62b5d48bae8787a93ed85df8ea0baf
font_02_sfnt_off0000f8c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8C4 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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