Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d1acd5799da064e…

MALICIOUS

PDF

74.8 KB Created: 2021-03-03 20:07:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 20cdaee5a53ff66757ebb30e42f693f2 SHA-1: c5b8acc5d6030dc9d2a482d42e9709e09652589e SHA-256: 2d1acd5799da064e32e72de1803c123c353148548a87d8934fd85185c5a72649
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://dafemum.ru/award?keyword=david+wilcock+the+ascension+mysteries+pdf In PDF document text
    • https://cdn.sqhk.co/zozusexub/agswjjc/ind_pay_app_download.pdfIn PDF document text
    • https://cdn.sqhk.co/rokijatu/ejj6gdX/fuwezazirevom.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385228/normal_6025a94d5597d.pdfIn PDF document text
    • http://valobunobatab.iblogger.org/naming_of_alkanes_worksheet.pdfIn PDF document text
    • http://waguzeb.66ghz.com/black_and_white_platform_sandals_brand.pdfIn PDF document text
    • https://cdn.sqhk.co/rilixuzewiv/hiifDUT/95784947479.pdfIn PDF document text
    • http://mekujoviwe.mypressonline.com/891274812.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368970/normal_600ef113a109c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457862/normal_5fe2fd25c1485.pdfIn PDF document text
    • http://tuderoba.getenjoyment.net/69490678020.pdfIn PDF document text
    • https://genezekanoz.weebly.com/uploads/1/3/1/4/131413678/melega_libafejinani.pdfIn PDF document text
    • https://lepatoketi.weebly.com/uploads/1/3/4/7/134732542/3167053e.pdfIn PDF document text
    • http://bukipumil.mypressonline.com/risositimesisezimuba.pdfIn PDF document text
    • https://cdn.sqhk.co/figakeves/iigjia1/happy_chick_emulator_apk_2019.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vavilonogamet.epizy.com/program_to_perform_binary_search_using_recursion.pdfIn PDF document text
    • http://zasotozipob.rf.gd/what_chapter_in_after_we_fell_does_tessa_get_drugged.pdfIn PDF document text
    • http://tawenaxogiminax.epizy.com/younow_apk_mod.pdfIn PDF document text
    • https://s3.amazonaws.com/resisuna/bolomapupiwojuxem.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_off0000e614.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE614 5712 bytes
SHA-256: 92d7c779143d66b74b45f82d3f3af6bd490c205cfb4a5dd447786dc22059bdcb
font_01_sfnt_off0000f97a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF97A 10676 bytes
SHA-256: 20203b0e937a92a0aed3811a968794af9ac813ae8eaa05185a9dacc87f349d2b

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