Analysis

  • max time kernel
    149s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    18/04/2026, 17:22

General

  • Target
    $R0/Uninstall Modern Metal Fish.exe
  • Size 162KB
  • Sample260418-vxnreadv7p
  • SHA256 1871878af817cfbb55b7e5ca2914baab2613a4c61c83860667f745bc694ad4cb
  • 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 6 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 Modern Metal Fish.exe
    "C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall Modern Metal Fish.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5016
    • 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:2128
      • 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:4800
      • 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:5372
      • 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\Temp\$R0', '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:5104

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        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 45a7b1bdf80308ff3c95f7c424115fbcc118921fc6d3491218de9a11a74cdf70
        • MD5 SHA1 SHA512 SSDEEP TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 16KB
        • SHA256 3562c693060d3510a77f34d595bf613f5e736766d5378437160949a98579b0a6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        __PSScriptPolicyTest_tifqd1gd.mcx.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tifqd1gd.mcx.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        StdUtils.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsk1123.tmp\StdUtils.dll
        • Size 100KB
        • SHA256 b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsk1123.tmp\System.dll
        • Size 12KB
        • SHA256 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
        • MD5 SHA1 SHA512 SSDEEP TLSH

        WinShell.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsk1123.tmp\WinShell.dll
        • Size 3KB
        • SHA256 9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6
        • MD5 SHA1 SHA512 TLSH

        nsExec.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsk1123.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 162KB
        • SHA256 1871878af817cfbb55b7e5ca2914baab2613a4c61c83860667f745bc694ad4cb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2128-30-0x0000000000710000-0x000000000074B000-memory.dmp

        memory/2128-116-0x0000000000710000-0x000000000074B000-memory.dmp

        memory/4800-33-0x000000006FFA0000-0x000000006FFEC000-memory.dmp

        memory/4800-49-0x0000000007740000-0x0000000007764000-memory.dmp

        memory/4800-29-0x0000000006220000-0x000000000626C000-memory.dmp

        memory/4800-31-0x000000007FDE0000-0x000000007FDF0000-memory.dmp

        memory/4800-27-0x0000000005D50000-0x00000000060A4000-memory.dmp

        memory/4800-32-0x00000000067B0000-0x00000000067E2000-memory.dmp

        memory/4800-45-0x0000000007B70000-0x00000000081EA000-memory.dmp

        memory/4800-41-0x0000000004E90000-0x0000000004EA0000-memory.dmp

        memory/4800-43-0x0000000004E90000-0x0000000004EA0000-memory.dmp

        memory/4800-42-0x0000000006800000-0x000000000681E000-memory.dmp

        memory/4800-14-0x0000000004E90000-0x0000000004EA0000-memory.dmp

        memory/4800-44-0x0000000007430000-0x00000000074D3000-memory.dmp

        memory/4800-18-0x0000000005B70000-0x0000000005BD6000-memory.dmp

        memory/4800-47-0x0000000007590000-0x000000000759A000-memory.dmp

        memory/4800-48-0x0000000007710000-0x000000000773A000-memory.dmp

        memory/4800-28-0x00000000061E0000-0x00000000061FE000-memory.dmp

        memory/4800-50-0x0000000070100000-0x0000000070454000-memory.dmp

        memory/4800-46-0x0000000007520000-0x000000000753A000-memory.dmp

        memory/4800-15-0x0000000002C00000-0x0000000002C36000-memory.dmp

        memory/4800-19-0x0000000005BE0000-0x0000000005C46000-memory.dmp

        memory/4800-16-0x00000000054D0000-0x0000000005AF8000-memory.dmp

        memory/4800-17-0x0000000005340000-0x0000000005362000-memory.dmp

        memory/5016-4-0x00000000021D0000-0x000000000220B000-memory.dmp

        memory/5104-92-0x0000000005EB0000-0x0000000006204000-memory.dmp

        memory/5104-94-0x0000000006590000-0x00000000065DC000-memory.dmp

        memory/5104-95-0x000000006FF80000-0x000000006FFCC000-memory.dmp

        memory/5104-103-0x0000000007720000-0x00000000077C3000-memory.dmp

        memory/5104-104-0x0000000070700000-0x0000000070A54000-memory.dmp

        memory/5372-75-0x00000000071A0000-0x00000000071B1000-memory.dmp

        memory/5372-74-0x0000000007230000-0x00000000072C6000-memory.dmp

        memory/5372-66-0x000000006FFA0000-0x000000006FFEC000-memory.dmp

        memory/5372-64-0x00000000056C0000-0x0000000005A14000-memory.dmp