Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b2da815164e694…

MALICIOUS

PDF

74.0 KB Created: 2022-04-01 23:15:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: 2617dcb9487b4d66cf04a01052da2d91 SHA-1: f77fc4759f7c6dd169e90f1cf6d0adad6ff6619f SHA-256: a8b2da815164e69437b2dcbd0ad4080bdd0e358aa01d0b038f6fa986b0340a5c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://wikojenuvovada.weebly.com/uploads/1/3/4/2/134266286/zudubonudikatim_gikufobasoges_jufazara.pdf In PDF document text
    • https://ruworelolovifuf.weebly.com/uploads/1/3/4/4/134462917/e9083.pdfIn PDF document text
    • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/gn3o8pqkpsi6coka7eratk647s/42704758543.pdfIn PDF document text
    • http://kaica.org.sa/ckeditor/kcfinder/upload/files/givakuzekado.pdfIn PDF document text
    • https://suzozepizemukaz.weebly.com/uploads/1/3/4/6/134665009/natibut-vonuwukokuz-batuvarevane.pdfIn PDF document text
    • https://mugakosi.weebly.com/uploads/1/3/1/3/131379948/suxetinek_remopizidunixa_poxesobu.pdfIn PDF document text
    • https://jonewaxuge.weebly.com/uploads/1/3/5/3/135319919/4545365.pdfIn PDF document text
    • https://acrgruppe.de/userfiles/file/xirusinami.pdfIn PDF document text
    • https://tizizuner.weebly.com/uploads/1/3/1/8/131872037/9451139.pdfIn PDF document text
    • https://galovuxo.weebly.com/uploads/1/3/4/7/134760431/kakiwomaki.pdfIn PDF document text
    • https://zopadujebononi.weebly.com/uploads/1/3/1/3/131380983/9a23d4d6.pdfIn PDF document text
    • https://tixosagekade.weebly.com/uploads/1/3/4/4/134489061/zoxizedusunesosege.pdfIn PDF document text
    • http://saraiaser.nl/userfiles/file/zigunazeniziterawuzujojes.pdfIn PDF document text
    • http://tehnaplus.mk/tehnaplus/kcfinder/upload/files/75216153098.pdfIn PDF document text
    • https://rovupugefo.weebly.com/uploads/1/3/4/3/134359584/zofuwajajoxedizobak.pdfIn PDF document text
    • https://gajodugibo.weebly.com/uploads/1/3/4/6/134635488/6cd5c2b6e76bb7.pdfIn PDF document text
    • https://tamexixufose.weebly.com/uploads/1/3/0/7/130739892/moxivip.pdfIn PDF document text
    • https://yubit.co.za/YmrXLWy8?keyword=dragon%20age%20origins%20awakening%20anders%20specializationPDF link annotation
    • https://clumba-indoor.ru/files/files/67094335178.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000bb61.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000bb61.bin)

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bb61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB61 16808 bytes
SHA-256: 2b4b50a037b88c0714cbc8055bf6de1c51517b89873486b7f9c947f36413804b
font_01_sfnt_off0000e755.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE755 10928 bytes
SHA-256: 85c389cfb65d30e6ea8ffe627e488c0758bea9298e0642f334264f34a30c23d2
font_02_sfnt_off000100af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100AF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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