Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b32961c919a2db…

MALICIOUS

PDF

82.7 KB Created: 2022-04-11 09:52:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 36bec099d15c78dfa8284e169e6a39b6 SHA-1: 225d71c361d6f0355075d3d2320a5cfec2f41f8d SHA-256: 72b32961c919a2db1928f61746bd64101acd627e0bac42272835d4897cff0ff2
246 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PHP webshell / backdoor source critical WEBSHELL_PHP
    The file contains PHP server-side code with the signature of a webshell/backdoor (named PHP webshell banner (madspot)). A webshell takes attacker input from an HTTP request and runs commands/code on the server. Flagged as a malicious hacktool artifact even when carried inside a document or archive — the code does not execute from the carrier, but the file is a webshell.
  • 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://podar.co.za/YmrXLWy8?keyword=kill%20switch%20or%20killswitch PDF link annotation
    • https://ariconium.cz/webpagebuilder/ckfinder/userfiles/files/ruruwit.pdfIn PDF document text
    • https://zivexipoter.weebly.com/uploads/1/3/1/4/131483036/nowasubowane-barowixupax-xovinolav.pdfIn PDF document text
    • http://homesunshinepharma.com/upload/files/93353785258.pdfIn PDF document text
    • https://implant-drill.com/userfiles/file/48507204882.pdfIn PDF document text
    • https://nutawazozi.weebly.com/uploads/1/3/4/6/134699679/9897246.pdfIn PDF document text
    • https://dexusejigisi.weebly.com/uploads/1/3/0/7/130739233/7db6ed03.pdfIn PDF document text
    • https://madspot.dk/ckfinder/userfiles/files/69697615727.pdfIn PDF document text
    • https://xikudamoxi.weebly.com/uploads/1/3/4/5/134576601/c67452c61e679f.pdfIn PDF document text
    • https://fubolilodizewe.weebly.com/uploads/1/3/5/3/135312413/8197876.pdfIn PDF document text
    • https://loxujuzif.weebly.com/uploads/1/3/4/3/134368844/wepokowajokubamake.pdfIn PDF document text
    • http://hide-bo.com/img/tmp/file/fumelotagipiwabaj.pdfIn PDF document text
    • http://sfinance.mn/userfiles/files/logubuzelugigan.pdfIn PDF document text
    • https://pevapulef.weebly.com/uploads/1/3/5/9/135979240/2650204.pdfIn PDF document text
    • https://zipifotudesa.weebly.com/uploads/1/3/0/9/130969604/fipowajutak.pdfIn PDF document text
    • https://3eyamaichi.com/upload/ckfinder_temp/files/20220216192148.pdfIn PDF document text
    • https://kigeneforiw.weebly.com/uploads/1/3/4/6/134648675/dosirulalukokuz.pdfIn PDF document text
    • https://didaripetog.weebly.com/uploads/1/3/4/6/134685212/64372b386974ae.pdfIn PDF document text
    • https://vurigejowuzebad.weebly.com/uploads/1/3/3/9/133997249/0e13546fe.pdfIn PDF document text
    • https://xusolufazajone.weebly.com/uploads/1/3/1/3/131383045/ece7aa951d.pdfIn PDF document text
    • https://jufujepil.weebly.com/uploads/1/3/4/6/134650130/worugavuberowaz.pdfIn PDF document text
    • https://jelozenodi.weebly.com/uploads/1/3/0/7/130739120/9265703.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e350.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE350 16620 bytes
SHA-256: 94912dd134c8de5517210e4080b9f4ff5b0fdf9f03d3503c363a212438a1be3b
font_01_sfnt_off00010ea3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EA3 10096 bytes
SHA-256: 6b2532dee01438c7f53e9c3b5c7ba5cc560e743ea28153af2862573be91f58f0
font_02_sfnt_off00012552.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12552 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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