Malicious PDF — malware analysis report

Static analysis result for SHA-256 52663a4fa2e6ed6a…

MALICIOUS

PDF

72.8 KB Created: 2021-02-27 21:54:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3428001f5641bb56f781b6b600319135 SHA-1: 65e5fa910550783c09db7d91c93e5f2bcf25d90e SHA-256: 52663a4fa2e6ed6a67d92cb367a0feed8ce2b52f0dcfb0fdc47686bac3d945a9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://gimoguvi.ru/award?keyword=hp+officejet+4630+ink+target PDF link annotation
    • https://mifopubulu.weebly.com/uploads/1/3/1/6/131637027/6801653.pdfIn PDF document text
    • http://kukushpa.fun/6360820458101aih.pdfIn PDF document text
    • https://cdn.sqhk.co/zatugudaxaji/Lhcjjy9/five_nights_at_freddy_s_3_free_unblocked.pdfIn PDF document text
    • https://cdn.sqhk.co/bezorufuv/ggcShjc/flower_images_pexels_free_stock_photos.pdfIn PDF document text
    • http://ryukzak.digital/lejuzevividrw8gq.pdfIn PDF document text
    • https://nuresoxak.weebly.com/uploads/1/3/1/3/131380504/jadisutebel_rutunil_nofodofeti.pdfIn PDF document text
    • https://cdn.sqhk.co/dolubivo/W2hrajE/44430754893.pdfIn PDF document text
    • https://xofusifusu.weebly.com/uploads/1/3/5/3/135312872/kalenure-dugabature-dilaja-wiluwib.pdfIn PDF document text
    • http://lozhobelir.space/fulotamurasizechswi.pdfIn PDF document text
    • https://cdn.sqhk.co/nuditufu/pgggjRL/lyb_mania_4_key_maps.pdfIn PDF document text
    • https://ganulexotugoris.weebly.com/uploads/1/3/1/1/131164012/latufetalepopoge.pdfIn PDF document text
    • https://cdn.sqhk.co/jibenapola/oibVicq/newurunebonuzozirerawa.pdfIn PDF document text
    • https://cdn.sqhk.co/nebemina/cOFFAaY/486961540.pdfIn PDF document text
    • http://leree4.club/98795093621b9eov.pdfIn PDF document text
    • https://cdn.sqhk.co/zazavoxujub/hcD0mak/60232106244.pdfIn PDF document text
    • http://look-hotel.com/free_printable_esl_worksheets_for_kindergartenvcmam.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jeponowon/pekiganuve.pdfIn PDF document text
    • https://s3.amazonaws.com/jitimesolagun/what_is_computer_science_and_programming.pdfIn PDF document text
    • https://s3.amazonaws.com/kavugusepe/what_book_comes_after_the_conference_of_the_birds.pdfIn PDF document text
    • https://s3.amazonaws.com/sefabe/socialismo_resumo.pdfIn PDF document text
    • https://s3.amazonaws.com/vajefam/performance_parts_for_honda_fury.pdfIn PDF document text
    • https://s3.amazonaws.com/norozovijalu/subesiwufijibuwana.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_off0000dcf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCF6 5624 bytes
SHA-256: d6b629ab736b2931f45d5a92407924934d1e49af18b07197b95d3c89bbb926b4
font_01_sfnt_off0000f03c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF03C 10892 bytes
SHA-256: 641f8fd468478e0e36641c9c3af63d492f01e85bf30769269ace18f155642bd1

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