Analysis

  • max time kernel
    142s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/11/2024, 04:02

General

  • Target
    3d7780e8a475df6ca45aa751c170c1ee80ef21f03def7efaae3f4f566496dd98.exe
  • Size 2.5MB
  • Sample241102-eltkhsxldw
  • SHA256 3d7780e8a475df6ca45aa751c170c1ee80ef21f03def7efaae3f4f566496dd98
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • amadey

Version
  • 5.04

Botnet
  • ec25c1

C2
  • http://185.208.159.121

Attributes
  • install_dir

    79bf8674ec

  • install_file

    Gxtuum.exe

  • strings_key

    83eb0804ff3941a2b466480b042dce0d

  • url_paths

    /8djjd3Shf2/index.php

rc4.plain

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • Amadey family
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 3 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 5 IoCs

    Run Powershell to execute payload.

  • System Location Discovery: System Language Discovery 1 TTPs 16 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 45 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3d7780e8a475df6ca45aa751c170c1ee80ef21f03def7efaae3f4f566496dd98.exe
    "C:\Users\Admin\AppData\Local\Temp\3d7780e8a475df6ca45aa751c170c1ee80ef21f03def7efaae3f4f566496dd98.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4084
    • C:\Users\Admin\AppData\Local\Temp\is-09K00.tmp\3d7780e8a475df6ca45aa751c170c1ee80ef21f03def7efaae3f4f566496dd98.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-09K00.tmp\3d7780e8a475df6ca45aa751c170c1ee80ef21f03def7efaae3f4f566496dd98.tmp" /SL5="$6020E,1707145,795136,C:\Users\Admin\AppData\Local\Temp\3d7780e8a475df6ca45aa751c170c1ee80ef21f03def7efaae3f4f566496dd98.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1760
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C timeout /T 3 & "C:\Users\Admin\AppData\Local\Temp\3d7780e8a475df6ca45aa751c170c1ee80ef21f03def7efaae3f4f566496dd98.exe" /VERYSILENT /SUPPRESSMSGBOXES
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1248
        • C:\Windows\SysWOW64\timeout.exe
          timeout /T 3
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:3336
        • C:\Users\Admin\AppData\Local\Temp\3d7780e8a475df6ca45aa751c170c1ee80ef21f03def7efaae3f4f566496dd98.exe
          "C:\Users\Admin\AppData\Local\Temp\3d7780e8a475df6ca45aa751c170c1ee80ef21f03def7efaae3f4f566496dd98.exe" /VERYSILENT /SUPPRESSMSGBOXES
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4324
          • C:\Users\Admin\AppData\Local\Temp\is-CTK6S.tmp\3d7780e8a475df6ca45aa751c170c1ee80ef21f03def7efaae3f4f566496dd98.tmp
            "C:\Users\Admin\AppData\Local\Temp\is-CTK6S.tmp\3d7780e8a475df6ca45aa751c170c1ee80ef21f03def7efaae3f4f566496dd98.tmp" /SL5="$80060,1707145,795136,C:\Users\Admin\AppData\Local\Temp\3d7780e8a475df6ca45aa751c170c1ee80ef21f03def7efaae3f4f566496dd98.exe" /VERYSILENT /SUPPRESSMSGBOXES
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of WriteProcessMemory
            PID:920
            • C:\Windows\SysWOW64\regsvr32.exe
              "regsvr32.exe" /s /i:INSTALL C:\Users\Admin\AppData\Roaming\\StoutCoyote.dll
              6⤵
              • Loads dropped DLL
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of WriteProcessMemory
              PID:1916
              • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                "powershell" -Command "if (Get-ScheduledTask | Where-Object { $_.Actions.Execute -eq 'regsvr32' -and $_.Actions.Arguments -eq '/S /i:INSTALL C:\Users\Admin\AppData\Roaming\StoutCoyote.dll' }) { exit 0 } else { exit 1 }"
                7⤵
                • Command and Scripting Interpreter: PowerShell
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:4784
              • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                "powershell" "Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute \"regsvr32\" -Argument \"/S /i:INSTALL C:\Users\Admin\AppData\Roaming\StoutCoyote.dll\") -Trigger (New-ScheduledTaskTrigger -Once -At (Get-Date).AddMinutes(1) -RepetitionInterval (New-TimeSpan -Minutes 1)) -TaskName 'MicrosoftEdgeUpdateTaskMachineUA{1FF1350C-DCFF-48E7-B838-761C5AFE23B4}' -Description 'Default' -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DontStopIfGoingOnBatteries) -RunLevel Highest"
                7⤵
                • Command and Scripting Interpreter: PowerShell
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:1612
              • C:\Users\Admin\AppData\Local\Temp\79bf8674ec\Gxtuum.exe
                "C:\Users\Admin\AppData\Local\Temp\79bf8674ec\Gxtuum.exe"
                7⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                PID:3120
  • C:\Windows\system32\regsvr32.EXE
    C:\Windows\system32\regsvr32.EXE /S /i:INSTALL C:\Users\Admin\AppData\Roaming\StoutCoyote.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3388
    • C:\Windows\SysWOW64\regsvr32.exe
      /S /i:INSTALL C:\Users\Admin\AppData\Roaming\StoutCoyote.dll
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:556
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" -Command "if (Get-ScheduledTask | Where-Object { $_.Actions.Execute -eq 'regsvr32' -and $_.Actions.Arguments -eq '/S /i:INSTALL C:\Users\Admin\AppData\Roaming\StoutCoyote.dll' }) { exit 0 } else { exit 1 }"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:920
      • C:\Users\Admin\AppData\Local\Temp\79bf8674ec\Gxtuum.exe
        "C:\Users\Admin\AppData\Local\Temp\79bf8674ec\Gxtuum.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:680
  • C:\Windows\system32\regsvr32.EXE
    C:\Windows\system32\regsvr32.EXE /S /i:INSTALL C:\Users\Admin\AppData\Roaming\StoutCoyote.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1720
    • C:\Windows\SysWOW64\regsvr32.exe
      /S /i:INSTALL C:\Users\Admin\AppData\Roaming\StoutCoyote.dll
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3008
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" -Command "if (Get-ScheduledTask | Where-Object { $_.Actions.Execute -eq 'regsvr32' -and $_.Actions.Arguments -eq '/S /i:INSTALL C:\Users\Admin\AppData\Roaming\StoutCoyote.dll' }) { exit 0 } else { exit 1 }"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:2192
      • C:\Users\Admin\AppData\Local\Temp\79bf8674ec\Gxtuum.exe
        "C:\Users\Admin\AppData\Local\Temp\79bf8674ec\Gxtuum.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3156

Network

        MITRE ATT&CK Enterprise v15

        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 ad2e3139aa438f799c4a876ca3e64af772b8a5786149925a08389723e42394d7
        • MD5 SHA1 SHA512

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 21KB
        • SHA256 f70ecee61777e50c51fc6ffbda4d62f8580b8002d18fd9e35d570cfe9df96af6
        • MD5 SHA1 SHA512 SSDEEP

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 20KB
        • SHA256 81ce93afe1ad18b0c54192a2e13f24828575b57a1467a74281eda155bfee0226
        • MD5 SHA1 SHA512 SSDEEP

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 20KB
        • SHA256 64ab049e3a062c7123b8bb94878b3294e60b1e9b44a3abb54bd53a07da75ab97
        • MD5 SHA1 SHA512 SSDEEP

        Gxtuum.exe

        • Path C:\Users\Admin\AppData\Local\Temp\79bf8674ec\Gxtuum.exe
        • Size 20KB
        • SHA256 31aee70f9705f6578c6b41849ea3b5a948a446f494f24befcf5b169a1c2a71d2
        • MD5 SHA1 SHA512 SSDEEP

        __PSScriptPolicyTest_dzlpgzlm.e32.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dzlpgzlm.e32.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        3d7780e8a475df6ca45aa751c170c1ee80ef21f03def7efaae3f4f566496dd98.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-09K00.tmp\3d7780e8a475df6ca45aa751c170c1ee80ef21f03def7efaae3f4f566496dd98.tmp
        • Size 3.1MB
        • SHA256 121727e0f55dadee43104df5487189a61fb54ad67e9bdca0fc13078f7a3cf141
        • MD5 SHA1 SHA512 SSDEEP

        StoutCoyote.dll

        • Path C:\Users\Admin\AppData\Roaming\StoutCoyote.dll
        • Size 2.6MB
        • SHA256 25d0f5b786541449b9988ac0de7c24840196e1d7401b6e58077075536b4fd5b4
        • MD5 SHA1 SHA512 SSDEEP

        memory/556-137-0x00000000032A0000-0x0000000003313000-memory.dmp

        memory/556-144-0x0000000074880000-0x0000000074A4F000-memory.dmp

        memory/920-123-0x0000000073D80000-0x0000000073DCC000-memory.dmp

        memory/920-122-0x0000000006050000-0x000000000609C000-memory.dmp

        memory/920-134-0x00000000074D0000-0x00000000074E1000-memory.dmp

        memory/920-133-0x0000000007160000-0x0000000007203000-memory.dmp

        memory/920-111-0x0000000005750000-0x0000000005AA4000-memory.dmp

        memory/920-21-0x0000000000C10000-0x0000000000F3F000-memory.dmp

        memory/1612-66-0x0000000005770000-0x0000000005AC4000-memory.dmp

        memory/1612-77-0x000000006FC50000-0x000000006FC9C000-memory.dmp

        memory/1760-24-0x0000000000B20000-0x0000000000E4F000-memory.dmp

        memory/1760-6-0x0000000000AE0000-0x0000000000AE1000-memory.dmp

        memory/1916-89-0x0000000000A60000-0x0000000000A61000-memory.dmp

        memory/1916-90-0x0000000074CD0000-0x0000000074E9F000-memory.dmp

        memory/1916-91-0x0000000002EF0000-0x0000000002F63000-memory.dmp

        memory/1916-109-0x0000000074CD0000-0x0000000074E9F000-memory.dmp

        memory/2192-156-0x0000000073D80000-0x0000000073DCC000-memory.dmp

        memory/3008-174-0x0000000074880000-0x0000000074A4F000-memory.dmp

        memory/3008-168-0x0000000003560000-0x00000000035D3000-memory.dmp

        memory/4084-27-0x0000000000880000-0x0000000000950000-memory.dmp

        memory/4084-0-0x0000000000880000-0x0000000000950000-memory.dmp

        memory/4084-2-0x0000000000881000-0x0000000000929000-memory.dmp

        memory/4324-22-0x0000000000880000-0x0000000000950000-memory.dmp

        memory/4324-8-0x0000000000880000-0x0000000000950000-memory.dmp

        memory/4784-30-0x00000000058E0000-0x0000000005902000-memory.dmp

        memory/4784-62-0x0000000007690000-0x00000000076A1000-memory.dmp

        memory/4784-61-0x0000000007710000-0x00000000077A6000-memory.dmp

        memory/4784-60-0x00000000074F0000-0x00000000074FA000-memory.dmp

        memory/4784-59-0x0000000007490000-0x00000000074AA000-memory.dmp

        memory/4784-58-0x0000000007AE0000-0x000000000815A000-memory.dmp

        memory/4784-57-0x0000000007350000-0x00000000073F3000-memory.dmp

        memory/4784-56-0x0000000007320000-0x000000000733E000-memory.dmp

        memory/4784-46-0x000000006FC50000-0x000000006FC9C000-memory.dmp

        memory/4784-45-0x0000000006730000-0x0000000006762000-memory.dmp

        memory/4784-44-0x0000000006200000-0x000000000624C000-memory.dmp

        memory/4784-43-0x0000000006150000-0x000000000616E000-memory.dmp

        memory/4784-42-0x0000000005B50000-0x0000000005EA4000-memory.dmp

        memory/4784-32-0x0000000005AA0000-0x0000000005B06000-memory.dmp

        memory/4784-31-0x0000000005980000-0x00000000059E6000-memory.dmp

        memory/4784-29-0x00000000052B0000-0x00000000058D8000-memory.dmp

        memory/4784-28-0x0000000004BB0000-0x0000000004BE6000-memory.dmp