52d30f7d4a94e3d7a12518c27c345ad58d02f77b27bf3c2e788bd0a7f076fe40

Analysis

max time kernel
148s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
23/05/2026, 10:17

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General

Target
2578.exe
Size 235KB
Sample260523-mbkhvsav7x
SHA256 52d30f7d4a94e3d7a12518c27c345ad58d02f77b27bf3c2e788bd0a7f076fe40
MD5 a8cbd4422c5fc55a68e8dbf166745ed4
SHA1 ffefb18fabe374f78fd575a2a78754886ae5d89a
SHA512 8e17b99142849fef19f901faf0afe4d1bba01420df87b88e7cafdb3302048ce32c94cf9443b1bf5cbdc38ed5713d797ffd02e85a4491c7f5a140a9935db730ed
SSDEEP 3072:SwJ+cUtFiw4n/c2iJcqBPryVHhYGmx7ZqCCxpBZfh2j9un7oZVEb4Ho:pJ+ftFB4ohyisfxdfh2IocQo
TLSH
T1C534C362E2D4F8B4E45BC23214E3807395D26EEDD9D815EA63A8F55518B21C330AED3B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

bootkit defense_evasion discovery persistence

Malware Config

Signatures

Disables Task Manager via registry modification
defense_evasion

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	2578.exe

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2578.exe

Kills process with taskkill 1 IoCs

defense_evasion

pid	Process
4476	taskkill.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
3180	reg.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3492	2578.exe
Token: SeDebugPrivilege	4476	taskkill.exe
Token: 33	5060	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	5060	AUDIODG.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3492 wrote to memory of 444	3492	2578.exe	80
PID 444 wrote to memory of 4476	444	cmd.exe	82
PID 3492 wrote to memory of 4968	3492	2578.exe	84
PID 4968 wrote to memory of 3180	4968	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\2578.exe
"C:\Users\Admin\AppData\Local\Temp\2578.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3492
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c taskkill /f /im taskmgr.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:444
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /im taskmgr.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4476
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c REG ADD hkcu\Software\Microsoft\Windows\CurrentVersion\policies\system /v DisableTaskMgr /t reg_dword /d 1 /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4968
- - C:\Windows\SysWOW64\reg.exe
    REG ADD hkcu\Software\Microsoft\Windows\CurrentVersion\policies\system /v DisableTaskMgr /t reg_dword /d 1 /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies registry key
    PID:3180

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x00000000000004C0 0x00000000000004CC
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5060

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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