donutloader | ac7e4670a3bf6ebdd3db36cb2d3fb569323a61824d9f2a916a76aae1a3fab671

Analysis

max time kernel
149s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
28/07/2026, 04:32

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
MasonService.exe
Size 3.2MB
Sample260728-e6dpssyakd
SHA256 ac7e4670a3bf6ebdd3db36cb2d3fb569323a61824d9f2a916a76aae1a3fab671
MD5 daa65750dd28de47f6108684f251024b
SHA1 f4d825d29626139682ce46b60f3bcedf6134f7db
SHA512 d1c1c720821fc3712db2dc92556891c67deb68c24b7e0c032557a4d5f50b65ac788d6505047ce84a41e2e9738536016d48aebb8b04cd41a3171d6d1d6ab06b42
SSDEEP 384:GatW/BQxpgZ8oNxPlJVku8A91TQjE+WpH0L0SN3cywPdD0xpQE4cLvqbpD6L8kqV:PcQxpghxPp9jhf
TLSH
T1CAF51129DFBB29FF0026CC5BDBD28263F4549126699D9BA209D243EB0793D076493D3C
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery execution donutloader loader persistence

Malware Config

Signatures

Family: DonutLoader
DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.
loader donutloader

Detects DonutLoader 1 IoCs

loader

resource	yara_rule
behavioral2/memory/5644-9-0x0000000003C80000-0x0000000003CD1000-memory.dmp	family_donutloader

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Executes dropped EXE 2 IoCs

pid	Process
5304	MasonService.exe
5644	MasonService.exe

Stops running service(s) 4 TTPs
defense_evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\MasonService.exe	MasonService.exe
File opened for modification	C:\Windows\SysWOW64\MasonService.exe	MasonService.exe

Launches sc.exe 6 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
1636	sc.exe
3212	sc.exe
2712	sc.exe
2912	sc.exe
4800	sc.exe
2132	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 9 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	MasonService.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MasonService.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MasonService.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Disables Windows logging functionality 2 TTPs
Changes registry settings to disable Windows Event logging.

Disable or Modify Tools
T1562.001

Modify Registry
T1112

Modifies data under HKEY_USERS 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\Windows Error Reporting	MasonService.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\Windows Error Reporting\Disabled = "1"	MasonService.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4864	MasonService.exe
Token: SeDebugPrivilege	5304	MasonService.exe
Token: SeDebugPrivilege	5644	MasonService.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4864 wrote to memory of 5304	4864	MasonService.exe	89
PID 5304 wrote to memory of 1636	5304	MasonService.exe	90
PID 5304 wrote to memory of 3212	5304	MasonService.exe	92
PID 5304 wrote to memory of 2712	5304	MasonService.exe	94
PID 5304 wrote to memory of 2912	5304	MasonService.exe	96
PID 5304 wrote to memory of 4800	5304	MasonService.exe	98
PID 5304 wrote to memory of 2132	5304	MasonService.exe	100

C:\Users\Admin\AppData\Local\Temp\MasonService.exe
"C:\Users\Admin\AppData\Local\Temp\MasonService.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4864
- C:\Windows\SysWOW64\MasonService.exe
  "C:\Windows\System32\MasonService.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5304
- - C:\Windows\SysWOW64\sc.exe
    "sc.exe" stop MasonService
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:1636
- - C:\Windows\SysWOW64\sc.exe
    "sc.exe" delete MasonService
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:3212
- - C:\Windows\SysWOW64\sc.exe
    "sc.exe" create MasonService binPath= "C:\Windows\System32\MasonService.exe /service" type= own start= auto
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:2712
- - C:\Windows\SysWOW64\sc.exe
    "sc.exe" description MasonService "Mason Stable Service (Single Instance)"
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:2912
- - C:\Windows\SysWOW64\sc.exe
    "sc.exe" failure MasonService reset= 3600 actions= restart/10000
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:4800
- - C:\Windows\SysWOW64\sc.exe
    "sc.exe" start MasonService
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:2132

C:\Windows\SysWOW64\MasonService.exe
C:\Windows\SysWOW64\MasonService.exe /service
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:5644

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

T1489

Replay Monitor

Loading Replay Monitor...

Downloads

MasonService.exe

Path C:\Windows\SysWOW64\MasonService.exe
Size 3.2MB
SHA256 ac7e4670a3bf6ebdd3db36cb2d3fb569323a61824d9f2a916a76aae1a3fab671
MD5 daa65750dd28de47f6108684f251024b
SHA1 f4d825d29626139682ce46b60f3bcedf6134f7db
SHA512 d1c1c720821fc3712db2dc92556891c67deb68c24b7e0c032557a4d5f50b65ac788d6505047ce84a41e2e9738536016d48aebb8b04cd41a3171d6d1d6ab06b42
SSDEEP 384:GatW/BQxpgZ8oNxPlJVku8A91TQjE+WpH0L0SN3cywPdD0xpQE4cLvqbpD6L8kqV:PcQxpghxPp9jhf
TLSH
T1CAF51129DFBB29FF0026CC5BDBD28263F4549126699D9BA209D243EB0793D076493D3C
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4864-0-0x0000000074B92000-0x0000000074B93000-memory.dmp

Download

memory/4864-1-0x0000000000100000-0x0000000000432000-memory.dmp

Download

memory/4864-2-0x0000000074B80000-0x000000007533C000-memory.dmp

Download

memory/4864-5-0x0000000074B80000-0x000000007533C000-memory.dmp

Download

memory/5304-4-0x0000000074B80000-0x000000007533C000-memory.dmp

Download

memory/5304-6-0x0000000074B80000-0x000000007533C000-memory.dmp

Download

memory/5304-10-0x0000000074B80000-0x000000007533C000-memory.dmp

Download

memory/5644-8-0x0000000003A30000-0x0000000003A52000-memory.dmp

Download

memory/5644-9-0x0000000003C80000-0x0000000003CD1000-memory.dmp

Download

memory/5644-11-0x00000000043C0000-0x000000000440E000-memory.dmp

Download

memory/5644-12-0x00000000044B0000-0x0000000004542000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

Loading Replay Monitor...

Downloads