Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    16/08/2026, 17:25

General

  • Target
    $R0/Uninstall sklauncher.exe
  • Size 248KB
  • Sample260816-vzmbcsshnd
  • SHA256 2e8fc0d22f29cf1ad7bd9ee207a31afd6fbe6e271254bc6515a00520827e2c5e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 13 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Using powershell.exe command.

  • Hide Artifacts: Ignore Process Interrupts 1 TTPs 1 IoCs

    Command interpreters often include specific commands/flags that ignore errors and other hangups.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall sklauncher.exe
    "C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall sklauncher.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3556
    • C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
      "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\$R0\
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3308
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -C "if (Get-Command Get-CimInstance -ErrorAction SilentlyContinue) { exit 0 } else { exit 1 }"
        3⤵
        • Hide Artifacts: Ignore Process Interrupts
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:836
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -C "if ((Get-ExecutionPolicy -Scope Process) -eq 'Restricted') { exit 1 } else { exit 0 }"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:116
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -C "if ((Get-CimInstance -ClassName Win32_Process | ? {$_.Path -and $_.Path.StartsWith('C:\Users\Admin\AppData\Local\Programs\sklauncher', 'CurrentCultureIgnoreCase')}).Count -gt 0) { exit 0 } else { exit 1 }"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:388

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        powershell.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 c03c91dd74498cc33a32d616fb3050ad954ed4f57e671e2e9651aedb7b128ff3
        • MD5 SHA1 SHA512 TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 16KB
        • SHA256 0bc9fe5f54d9220c751fdd0aa29709e7c9d6944e2371867f9ce54a02a58d7444
        • MD5 SHA1 SHA512 SSDEEP TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 16KB
        • SHA256 5d0f9c8744bb0e99353ea1960d2cca5a8c69e189e2048b60e048649a0cd09bc4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        __PSScriptPolicyTest_uliwwb1f.yx3.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uliwwb1f.yx3.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        StdUtils.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsj1BB2.tmp\StdUtils.dll
        • Size 100KB
        • SHA256 b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsj1BB2.tmp\System.dll
        • Size 12KB
        • SHA256 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
        • MD5 SHA1 SHA512 SSDEEP TLSH

        UAC.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsj1BB2.tmp\UAC.dll
        • Size 14KB
        • SHA256 2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08
        • MD5 SHA1 SHA512 SSDEEP TLSH

        WinShell.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsj1BB2.tmp\WinShell.dll
        • Size 3KB
        • SHA256 9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6
        • MD5 SHA1 SHA512 TLSH

        modern-wizard.bmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsj1BB2.tmp\modern-wizard.bmp
        • Size 150KB
        • SHA256 8c8ed638b6edf6ea3ed2ed351f0485cbdb8951462e0f4ed1df0d5cb3996ce3ca
        • MD5 SHA1 SHA512 SSDEEP TLSH

        nsDialogs.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsj1BB2.tmp\nsDialogs.dll
        • Size 9KB
        • SHA256 1e40211af65923c2f4fd02ce021458a7745d28e2f383835e3015e96575632172
        • MD5 SHA1 SHA512 SSDEEP TLSH

        nsExec.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsj1BB2.tmp\nsExec.dll
        • Size 6KB
        • SHA256 5d9ceb1ce5f35aea5f9e5a0c0edeeec04dfefe0c77890c80c70e98209b58b962
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Un_A.exe

        • Path C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
        • Size 248KB
        • SHA256 2e8fc0d22f29cf1ad7bd9ee207a31afd6fbe6e271254bc6515a00520827e2c5e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/116-94-0x0000000007EB0000-0x0000000007EC1000-memory.dmp

        memory/116-93-0x0000000007F80000-0x0000000008016000-memory.dmp

        memory/116-85-0x000000006FD00000-0x000000006FD4C000-memory.dmp

        memory/116-76-0x0000000006300000-0x0000000006654000-memory.dmp

        memory/388-108-0x000000006FD00000-0x000000006FD4C000-memory.dmp

        memory/388-116-0x0000000070480000-0x00000000707D4000-memory.dmp

        memory/836-38-0x0000000005980000-0x0000000005FA8000-memory.dmp

        memory/836-53-0x000000006FD00000-0x000000006FD4C000-memory.dmp

        memory/836-62-0x0000000007850000-0x00000000078F3000-memory.dmp

        memory/836-63-0x0000000008200000-0x000000000887A000-memory.dmp

        memory/836-64-0x0000000007BB0000-0x0000000007BCA000-memory.dmp

        memory/836-65-0x0000000007C20000-0x0000000007C2A000-memory.dmp

        memory/836-66-0x0000000007DA0000-0x0000000007DCA000-memory.dmp

        memory/836-67-0x0000000007DD0000-0x0000000007DF4000-memory.dmp

        memory/836-68-0x000000006FE60000-0x00000000701B4000-memory.dmp

        memory/836-52-0x0000000006E20000-0x0000000006E52000-memory.dmp

        memory/836-61-0x0000000007830000-0x000000000784E000-memory.dmp

        memory/836-51-0x00000000068A0000-0x00000000068EC000-memory.dmp

        memory/836-50-0x0000000006860000-0x000000000687E000-memory.dmp

        memory/836-49-0x0000000006430000-0x0000000006784000-memory.dmp

        memory/836-40-0x0000000006120000-0x0000000006186000-memory.dmp

        memory/836-41-0x0000000006190000-0x00000000061F6000-memory.dmp

        memory/836-39-0x0000000005920000-0x0000000005942000-memory.dmp

        memory/836-37-0x00000000032C0000-0x00000000032D0000-memory.dmp

        memory/836-36-0x0000000003210000-0x0000000003246000-memory.dmp

        memory/836-35-0x00000000032C0000-0x00000000032D0000-memory.dmp