Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb8759dd3ba0e11e…

MALICIOUS

PDF

78.4 KB Created: 2022-04-12 21:32:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: ec7f0128b597f89fed8d0b2d820288bd SHA-1: ebac253a64653a440455268bd53294dc5d733308 SHA-256: cb8759dd3ba0e11e1c3b61be91b8c8a54317489a8235085b1f5661a051a1cac2
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://topupdana.com/contents/files/36625388941.pdf In PDF document text
    • http://gesundezellen.com/neu/userfiles/file/41745135006.pdfIn PDF document text
    • https://greenline.bg/userfiles/file/kamoneromoximozalenu.pdfIn PDF document text
    • https://buvonidodiwa.weebly.com/uploads/1/3/4/3/134332647/8498078.pdfIn PDF document text
    • https://ehilteknik.com/uploads/files/62065472095.pdfIn PDF document text
    • http://ttech.com.vn/ckeditor/kcfinder/upload/files/85336730182.pdfIn PDF document text
    • https://slotpt2.com/contents/files/14301393796.pdfIn PDF document text
    • https://xn--80ab4bebq2d.xn--p1ai/upload/files/75598278006.pdfIn PDF document text
    • http://simonova-zahrada.cz/ckeditor/kcfinder/upload/files/45325429013.pdfIn PDF document text
    • https://www.escolamacrobiotica.pt/backoffice/assets/js/kcfinder/upload/files/roxeduliki.pdfIn PDF document text
    • http://challendor.com/fckeditor/upload/file/korewunogikud.pdfIn PDF document text
    • https://bititechnika.com/uploads/file/17822096067.pdfIn PDF document text
    • https://www.iccct21.scrs.in/kcfinder/upload/files/goxezotibepu.pdfIn PDF document text
    • http://manilag.com/FileData/ckfinder/files/20220408_41C4DAAC244D22A7.pdfIn PDF document text
    • https://ou-ravda.com/ckfinder/userfiles/files/17868289882.pdfIn PDF document text
    • https://xuxukogizi.weebly.com/uploads/1/3/5/3/135320654/1dfcbb61d57b962.pdfIn PDF document text
    • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16220864532e0c---22981373444.pdfIn PDF document text
    • https://bemuvinuximu.weebly.com/uploads/1/3/4/6/134606549/7465960.pdfIn PDF document text
    • https://mewetoliwuluveb.weebly.com/uploads/1/3/4/7/134767879/nujavatike.pdfIn PDF document text
    • https://parafobosa.weebly.com/uploads/1/3/1/8/131857791/xazugebifu-vokaridewapit.pdfIn PDF document text
    • https://alternatifhirdavat.com/upload/ckfinder/files/xeramonikolugudivajik.pdfIn PDF document text
    • https://tevav.co.za/YmrXLWy8?keyword=behave%20the%20biology%20of%20humans%20at%20our%20best%20and%20worst%20redditPDF link annotation
    • 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_off0000ccf7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000ccf7.bin)

Related samples 3

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_off0000ccf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCF7 11360 bytes
SHA-256: e52d802c4ae0637900c6b6c0ea37e335aff272abed9826c62ef5f390397d7904
font_01_sfnt_off0000e76c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE76C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000ff7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF7E 16948 bytes
SHA-256: 2b37d05c579e6aab529e2a8e2ee52313b682d918ebe8e48913356dd7c25b3bcc

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