Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    05/06/2026, 11:02

General

  • Target
    2026-06-05_79d04a90f0e9cae00ed3e464f4aa016a_bkransomware_elex_maze_rhadamanthys.exe
  • Size 3.2MB
  • Sample260605-m43vxae13q
  • SHA256 8463948ad95ab5a66cf1aad7ef9efb5182f2e1970b06853e220d28c2372995bb
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Detects executables packed with Dotfuscator 1 IoCs
  • Executes dropped EXE 4 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 3 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Windows directory 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-06-05_79d04a90f0e9cae00ed3e464f4aa016a_bkransomware_elex_maze_rhadamanthys.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-05_79d04a90f0e9cae00ed3e464f4aa016a_bkransomware_elex_maze_rhadamanthys.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4436
    • C:\Users\Admin\AppData\Local\Temp\bg7fnaSLXMW3fYS.exe
      C:\Users\Admin\AppData\Local\Temp\bg7fnaSLXMW3fYS.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3836
      • C:\Users\Admin\AppData\Local\Temp\bg7fnaSLXMW3fYS.exe
        C:\Users\Admin\AppData\Local\Temp\bg7fnaSLXMW3fYS.exe --crash-handler "--database=c:\users\admin\appdata\local\Google\Software Reporter Tool" --url=https://clients2.google.com/cr/report --annotation=plat=Win32 --annotation=prod=ChromeFoil --annotation=ver=18.102.0 --initial-client-data=0x2ac,0x2a4,0x2b0,0x2a8,0x2b4,0xbb82fc,0xbb830c,0xbb831c
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1180
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2660
  • C:\Windows\CTS.exe
    C:\Windows\CTS.exe
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:3476

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        excel.exe_Rules.xml

        • Path C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml
        • Size 391KB
        • SHA256 76b42c2e4fd4ae2d30bf68ea43a2d03277e79df66b67b9d8927c92832eeb4bc6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        bg7fnaSLXMW3fYS.exe

        • Path C:\Users\Admin\AppData\Local\Temp\bg7fnaSLXMW3fYS.exe
        • Size 3.1MB
        • SHA256 b9e001c5ef4845c2c0ce7a1ce134c774a7cd011af31dfbe2a13a96da2f68570e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        CTS.exe

        • Path C:\Windows\CTS.exe
        • Size 71KB
        • SHA256 075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163
        • MD5 SHA1 SHA512 SSDEEP TLSH

        settings.dat

        • Path \??\c:\users\admin\appdata\local\Google\Software Reporter Tool\settings.dat
        • Size 40B
        • SHA256 e5e41ef814d6b38a081e6702538b2977f37f66831fa31becbf652cd5d86cad61
        • MD5 SHA1 SHA512