7a64f9f2d346404f7f53d530f788330ee40fbf84ef0aa587c9b3f65f44c9d823

Analysis

user interaction
yes
max time kernel
149s
max time network
126s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
24/09/2026, 00:47

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General

Target
loader.exe
Size 18.0MB
Sample260924-a5la2aaa72
SHA256 7a64f9f2d346404f7f53d530f788330ee40fbf84ef0aa587c9b3f65f44c9d823
MD5 4f409eba195a8c63a8e2a40f41c29f2b
SHA1 da0a8f71bb17a6c68794d31dd8ab995de9b02f9c
SHA512 605d24bb5ef2031f43a7653635e3f78ea524c0ad74e5a003abe0a08228c520d0bfc901689b1eab84d0b3821cd0e9015e49bcd6252eb78cccae0e857fdf1f05ef
SSDEEP 393216:eIDKl6Ffh82f3Ug9qd5MDWO4Icq+zj641v6Ywk:ee3Zqd5My9lqnSwk
TLSH
T1F01712C125E982FDC362C63DD24617EAE9C93C858DBB652ABFCA64013471C45C8EBD39
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

bootkit defense_evasion execution persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
936	loader.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4592	powershell.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	loader.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 TTPs 1 IoCs

defense_evasion

Debugger Evasion

T1622

pid	Process
3372	loader.exe

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
4472	cmd.exe

Modifies data under HKEY_USERS 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry	loader.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry\TraceTimeLast = "134346845078958172"	loader.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4592	powershell.exe
4592	powershell.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs

pid	Process
3372	loader.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3372	loader.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSystemtimePrivilege	3372	loader.exe
Token: SeDebugPrivilege	4592	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3372 wrote to memory of 936	3372	loader.exe	89
PID 936 wrote to memory of 4472	936	loader.exe	90
PID 4472 wrote to memory of 4592	4472	cmd.exe	92

C:\Users\Admin\AppData\Local\Temp\loader.exe
"C:\Users\Admin\AppData\Local\Temp\loader.exe"
1⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3372
- C:\Users\Admin\AppData\Local\Temp\loader.exe
  "C:\Users\Admin\AppData\Local\Temp\loader.exe"
  2⤵
  - Executes dropped EXE
  - Writes to the Master Boot Record (MBR)
  - Modifies data under HKEY_USERS
  - Suspicious use of WriteProcessMemory
  PID:936
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /c powershell.exe -NoProfile -ExecutionPolicy Bypass -Command ^"^& { $encoded = 'QXBwIGluaXRpYWxpemF0aW9uIGVycm9yIDB4MTAz'; $text = [System.Text.Encoding]::UTF8.GetString([Convert]::FromBase64String($encoded)); $text = $text.Replace('\n', [Environment]::NewLine); Add-Type -AssemblyName PresentationFramework; [System.Windows.MessageBox]::Show($text, 'sync.top', 'OK', 'Error', 'None', 'DefaultDesktopOnly') }^"
    3⤵
    - Executes a command shell one-liner
    - Suspicious use of WriteProcessMemory
    PID:4472
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -NoProfile -ExecutionPolicy Bypass -Command "& { $encoded = 'QXBwIGluaXRpYWxpemF0aW9uIGVycm9yIDB4MTAz'; $text = [System.Text.Encoding]::UTF8.GetString([Convert]::FromBase64String($encoded)); $text = $text.Replace('\n', [Environment]::NewLine); Add-Type -AssemblyName PresentationFramework; [System.Windows.MessageBox]::Show($text, 'sync.top', 'OK', 'Error', 'None', 'DefaultDesktopOnly') }"
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4592

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Windows Command Shell

T1059.003

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Debugger Evasion

T1622

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Debugger Evasion

T1622

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

loader.exe

Path C:\Users\Admin\AppData\Local\Temp\loader.exe
Size 18.0MB
SHA256 8022f957b622b46d06fe53aaff276d71e33ed3fee6c01fcb4474e1ebb22b368e
MD5 890563464f837bc49edb8a7a4422e27b
SHA1 c04cb39afc84adb28dcf0f7e2e37dff38d1f5d10
SHA512 06f8d0ec2ff4e1a03d81ba2d59567673276c1ef7fc4d9b959f3fdb1be50bf216d009c6d5a07187e11547590eb9e0c2fc0d46f636f08c7f808e9e23a6c9bd9723
SSDEEP 393216:eIDKl6Ffh82f3Ug9qd5MDWO4Icq+zj641v6Ywp:ee3Zqd5My9lqnSwp
TLSH
T1DA1712C125E982FDC362C63DD24617EAE9C93C858DBB652ABFCA64013471C45C8EBD39
MD5 SHA1 SHA512 SSDEEP TLSH

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loader.exe

Path C:\Users\Admin\AppData\Local\Temp\loader.exe
Size 18.0MB
SHA256 b98354408857888cb87dfb25f493a6ac6f793f77ed4587ade5953af1fb86e4e6
MD5 53fc55b61b9e41267847dabafa031047
SHA1 74aeabeac89e72c543abe97a38b5e697aad054fa
SHA512 66b0fbae7924e9f19c03b11b8b05ef128aac775c85eab03ec997ee5b07d490fa390c4964b9530689c7c5978f4dd8bdb6b1dd2b46e3fdb1375e3d35340885f018
SSDEEP 393216:eIDKl6Ffh82f3Ug9qd5MDWO4Icq+zj641v6YwP:ee3Zqd5My9lqnSwP
TLSH
T17A1712C125E982FDC362C63DD24617EAE9C93C858DBB652ABFCA64013471C45C8EBD39
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/936-35-0x00007FF7EDB40000-0x00007FF7EFD2B000-memory.dmp

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memory/936-79-0x00007FF7EDB40000-0x00007FF7EFD2B000-memory.dmp

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memory/3372-0-0x00007FF7E3ED0000-0x00007FF7E60BB000-memory.dmp

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memory/3372-34-0x00007FF7E3ED0000-0x00007FF7E60BB000-memory.dmp

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memory/4592-77-0x000001CE1B9C0000-0x000001CE1B9E2000-memory.dmp

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