a849e0c7741599b0fd60392d0eeb5d83e215f4f90795af60bf1ad20bd530cb9c

Analysis

user interaction
yes
max time kernel
149s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
20/07/2026, 22:00

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General

Target
loader.exe
Size 18.0MB
Sample260720-1wq32afv5p
SHA256 a849e0c7741599b0fd60392d0eeb5d83e215f4f90795af60bf1ad20bd530cb9c
MD5 fc4c13973d35400640794fef290476ab
SHA1 1f363819b1644942838c972be35ed95e42defee7
SHA512 acbd0e53b324f8d5ffc086b63eaf8535bd60590dbeab9ba26c910fbcd3d6e5d977465e9e3a65501d030be0850853e1cd4777b5d707bd191fe2726b2d03599d6a
SSDEEP 393216:eIDKl6Ffh82f3Ug9qd5MDWO4Icq+zj641v6Yw:ee3Zqd5My9lqnSw
TLSH
T1B71712C125E982FDC362C63DD24617EAE9C93C858DBB652ABFCA64013471C45C8EBD39
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

bootkit execution persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
968	loader.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
5084	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 IoCs

pid	Process
1660	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
1688	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 = "134290584510968957"	loader.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
5084	powershell.exe
5084	powershell.exe
5084	powershell.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs

pid	Process
1660	loader.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1660	loader.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSystemtimePrivilege	1660	loader.exe
Token: SeDebugPrivilege	5084	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 968	1660	loader.exe	90
PID 968 wrote to memory of 1688	968	loader.exe	91
PID 1688 wrote to memory of 5084	1688	cmd.exe	93

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:1660
- 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:968
- - 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:1688
  - - 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:5084

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

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

loader.exe

Path C:\Users\Admin\AppData\Local\Temp\loader.exe
Size 18.0MB
SHA256 02485930bc84f6da446757e0ba9df04e08309979729fa63d46328b8943c3447b
MD5 1d1eb7b9ef367a969d68b0c4bfbb1940
SHA1 3e7f24e6d708dcd1300f0e00da7186cb93b33ad8
SHA512 6f8537d680e991e82cb2d46841e9ffe77d99a2c398dfa74fc559b4eb4a0ccd2827e93551bea800ebfe1eec7877c3bd838d5fff2e4a7edf8c0d391b4cce129d6e
SSDEEP 393216:eIDKl6Ffh82f3Ug9qd5MDWO4Icq+zj641v6YwT:ee3Zqd5My9lqnSwT
TLSH
T1601712C125E982FDC362C63DD24617EAE9C93C858DBB652ABFCA64013471C45C8EBD39
MD5 SHA1 SHA512 SSDEEP TLSH

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loader.exe

Path C:\Users\Admin\AppData\Local\Temp\loader.exe
Size 18.0MB
SHA256 8e80d0951092ce1a1f2c80b88e545b7ffbc61379bd39630562c00cd35fcb1ad8
MD5 74f04c50cec1dafe0040ff7ee9b47663
SHA1 210aaf26d4e1fcabf4e9f556d75245cf6b865dd0
SHA512 3cf43c6a22f66b0a200a1e487bd1c91b303a54ab5db932976d2ec6790e34a00c88a34764d7f0a47e643079337203b95a0efe1abb1f1cb55146dc2cacb452622c
SSDEEP 393216:eIDKl6Ffh82f3Ug9qd5MDWO4Icq+zj641v6Ywb:ee3Zqd5My9lqnSwb
TLSH
T1E81712C125E982FDC362C63DD24617EAE9C93C858DBB652ABFCA64013471C45C8EBD39
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/968-35-0x00007FF7113D0000-0x00007FF7135BB000-memory.dmp

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memory/968-79-0x00007FF7113D0000-0x00007FF7135BB000-memory.dmp

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memory/1660-0-0x00007FF6B3CE0000-0x00007FF6B5ECB000-memory.dmp

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memory/1660-34-0x00007FF6B3CE0000-0x00007FF6B5ECB000-memory.dmp

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memory/5084-78-0x00000198F1B40000-0x00000198F1B62000-memory.dmp

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