Malicious PDF — malware analysis report

Static analysis result for SHA-256 87646eae71b4d594…

MALICIOUS

PDF

71.0 KB Created: 2021-02-27 00:21:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 6a29c498641270c6b689ca2abfda207d SHA-1: a243947ebf2754a39249497df444f4e8595e7f66 SHA-256: 87646eae71b4d5947d91b195cac62ab6af36721f578279de84bc0aee49ed1c77
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://midufefew.ru/award?keyword=kenneth+cole+watch+repair+dubai PDF link annotation
    • https://cdn.sqhk.co/ravuviwidi/hgiLqCT/how_i_lose_belly_fat_in_7_days.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464871/normal_600f1068dff96.pdfIn PDF document text
    • https://cdn.sqhk.co/segenoliz/ghl0npV/20535221321.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383913/normal_6022ae0b48320.pdfIn PDF document text
    • https://cdn.sqhk.co/zativojor/liflgaK/call_of_mini_zombies_hack_apk_2018.pdfIn PDF document text
    • http://helps-lnstagramcopyrights-about.com/bed_sheet_sizes_nzk3vrm.pdfIn PDF document text
    • https://cdn.sqhk.co/pifonode/ghibhcF/viluparasenafu.pdfIn PDF document text
    • http://zvezdasevera.online/how_much_does_an_accessory_dwelling_unit_costdbjac.pdfIn PDF document text
    • https://cdn.sqhk.co/rebamomidaw/Z73n7jf/17783304140.pdfIn PDF document text
    • http://kurs1.xyz/kopelaxoxisipajadegosialo0o.pdfIn PDF document text
    • https://cdn.sqhk.co/vulovosovem/cetYgfx/growtopia_wiki_crystal_recipes.pdfIn PDF document text
    • http://leree4.club/hamburger_helper_box_instructionsjew9g.pdfIn PDF document text
    • https://cdn.sqhk.co/rovonoset/4xh9hj5/hidden_valley_road_summary.pdfIn PDF document text
    • https://cdn.sqhk.co/nuwalimo/hRjgIjf/zodosasidugaz.pdfIn PDF document text
    • https://cdn.sqhk.co/rasepotobami/dVjjchj/wifi_direct_file_transfer_android_github.pdfIn PDF document text
    • https://cdn.sqhk.co/vipikunowi/bihbicS/recette_sandwich_salade_aux_oeufs.pdfIn PDF document text
    • http://lezeninimi.medianewsonline.com/mini_smart_socket_xs-ssa01_app.pdfIn PDF document text
    • https://cdn.sqhk.co/kulobuwaxegu/Qjgqlh2/zelubujugedob.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gogujigasad.onlinewebshop.net/medogemon.pdfIn PDF document text
    • http://liraperuwuw.atwebpages.com/28795800893.pdfIn PDF document text
    • http://jujobope.atwebpages.com/76116910010.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_off0000da68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA68 5184 bytes
SHA-256: 835644c7f0f0f7f3bcaba7a14a9cf5c5ee68d217ccb66b3f2b52aacda5198e32
font_01_sfnt_off0000ec18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC18 10248 bytes
SHA-256: e60f05bf4ca3b60b88e5490ba0e7ef36a7d312de44b06b0a2e49deaccdb90fa8

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