asyncrat | 4579692bf5d6ad92c0f936c9ed606195904e959b8bf6d8dd3e1d21271dc39b77

Analysis

max time kernel
46s
max time network
148s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260617-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
28/06/2026, 19:18

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General

Target
4579692bf5d6ad92c0f936c9ed606195904e959b8bf6d8dd3e1d21271dc39b77.exe
Size 270KB
Sample260628-x1dfysct2x
SHA256 4579692bf5d6ad92c0f936c9ed606195904e959b8bf6d8dd3e1d21271dc39b77
MD5 31d822fa6d7365a7f158cfb6accbd9ec
SHA1 0f6f4a2209ecd4bda170a27c8e6c6358c4513809
SHA512 588add0a995ca4b9b7183c8fd71fe01b7df98f762d08f204da87bfb311696fa14817f195fec116148d9c5189f2eea6e622f0cbe2186c1dd19d4add6596ed333b
SSDEEP 3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/eC2Y:WFzDqa86hV6uRRqX1evPlwAH
TLSH
T1B3447238F88C552EC679D6F0A9F447C6FE582D6B3550A9CD5BA63388483364B68CDE0C
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.4.9G

corporation.warzonedns.com:9341

Mutex

480-28105c055659

Attributes

delay
0
install
false
install_folder
%AppData%

aes.plain

Signatures

Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Contains code to disable Windows Defender 1 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

resource	yara_rule
behavioral2/memory/2676-24-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 2 IoCs

pid	Process
1972	HiPatchService.exe
5440	HiPatchService.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-1-5-21-28459746-3881314244-166055492-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	4579692bf5d6ad92c0f936c9ed606195904e959b8bf6d8dd3e1d21271dc39b77.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1972 set thread context of 2676	1972	HiPatchService.exe	95
PID 5440 set thread context of 6108	5440	HiPatchService.exe	96

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 7 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	HiPatchService.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4579692bf5d6ad92c0f936c9ed606195904e959b8bf6d8dd3e1d21271dc39b77.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HiPatchService.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	RegAsm.exe
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	RegAsm.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
1344	timeout.exe

Suspicious behavior: EnumeratesProcesses 48 IoCs

pid	Process
2676	RegAsm.exe
2676	RegAsm.exe
2676	RegAsm.exe
2676	RegAsm.exe
2676	RegAsm.exe
2676	RegAsm.exe
6108	RegAsm.exe
6108	RegAsm.exe
6108	RegAsm.exe
6108	RegAsm.exe
6108	RegAsm.exe
6108	RegAsm.exe
6108	RegAsm.exe
6108	RegAsm.exe
2676	RegAsm.exe
2676	RegAsm.exe
6108	RegAsm.exe
6108	RegAsm.exe
2676	RegAsm.exe
2676	RegAsm.exe
2676	RegAsm.exe
2676	RegAsm.exe
6108	RegAsm.exe
6108	RegAsm.exe
2676	RegAsm.exe
6108	RegAsm.exe
6108	RegAsm.exe
2676	RegAsm.exe
2676	RegAsm.exe
2676	RegAsm.exe
2676	RegAsm.exe
2676	RegAsm.exe
2676	RegAsm.exe
2676	RegAsm.exe
2676	RegAsm.exe
2676	RegAsm.exe
2676	RegAsm.exe
2676	RegAsm.exe
2676	RegAsm.exe
6108	RegAsm.exe
6108	RegAsm.exe
6108	RegAsm.exe
6108	RegAsm.exe
6108	RegAsm.exe
6108	RegAsm.exe
6108	RegAsm.exe
6108	RegAsm.exe
6108	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2676	RegAsm.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
784	sihost.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1296 wrote to memory of 5440	1296	4579692bf5d6ad92c0f936c9ed606195904e959b8bf6d8dd3e1d21271dc39b77.exe	91
PID 1296 wrote to memory of 2668	1296	4579692bf5d6ad92c0f936c9ed606195904e959b8bf6d8dd3e1d21271dc39b77.exe	92
PID 2668 wrote to memory of 1344	2668	cmd.exe	94
PID 1972 wrote to memory of 2676	1972	HiPatchService.exe	95
PID 1972 wrote to memory of 2676	1972	HiPatchService.exe	95
PID 1972 wrote to memory of 2676	1972	HiPatchService.exe	95
PID 1972 wrote to memory of 2676	1972	HiPatchService.exe	95
PID 1972 wrote to memory of 2676	1972	HiPatchService.exe	95
PID 5440 wrote to memory of 6108	5440	HiPatchService.exe	96
PID 5440 wrote to memory of 6108	5440	HiPatchService.exe	96
PID 5440 wrote to memory of 6108	5440	HiPatchService.exe	96
PID 5440 wrote to memory of 6108	5440	HiPatchService.exe	96
PID 5440 wrote to memory of 6108	5440	HiPatchService.exe	96

C:\Users\Admin\AppData\Local\Temp\4579692bf5d6ad92c0f936c9ed606195904e959b8bf6d8dd3e1d21271dc39b77.exe
"C:\Users\Admin\AppData\Local\Temp\4579692bf5d6ad92c0f936c9ed606195904e959b8bf6d8dd3e1d21271dc39b77.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1296
- C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe
  "C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5440
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    PID:6108
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2668
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 180
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:1344

C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe
C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2676

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:3488

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
- Suspicious use of FindShellTrayWindow
PID:784
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  PID:4300

C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
1⤵
PID:2772

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:1756

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

prep_Activatable Class_Hermes_perf.cache

Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
Size 599B
SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
MD5 658ab8c32d4cc5deb36ac5f63da4658b
SHA1 30c12cd871ff0c2c4098d794e9ae4f2540586813
SHA512 a73030c008ef3c2e274f11c90bfe79fa8ae402f76801c710bed8cc1ab1218a84858ea566b772be4bade8ef639a019c57d297028df15b64b3753482cf0f3c8f85
TLSH
T12AF05C83EB6A1B72C456123DC8EE56E47B31D1846EC11367A2107B1D3C2B7192D174BD
MD5 SHA1 SHA512 TLSH

Submit Download

HiPatchService.bat

Path C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat
Size 213B
SHA256 9092dbb1ca1767d1966b7f79349dd95a802a68248251bf070c0f1d74d5681d71
MD5 0955cb4b691d44b37f8b6fad48a33b8e
SHA1 9dae759ae014cc124ab6eed7c8035788c124ae4a
SHA512 08b868a028c1e8d29ed643416850df16f58d44668f9193b46bd3934965e5617a0a4015fc52815c5456023dbde01023450d295b76d936a936f26b602e764b0235
TLSH
T1CBD0C9229581961FD5B161F245B9724667E38586296029845654CC4EB2C624A32DA285
MD5 SHA1 SHA512 TLSH

Submit Download

HiPatchService.exe

Path C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe
Size 271KB
SHA256 efa3f6b12ac719eff36e6cc9c977b91f523d1cea520af6ef0959eae7c39e67f6
MD5 832f2084a5f191f70d45c7d390927566
SHA1 eb8d6ecf5571a2ff8a000cad3a1389f77498929b
SHA512 f0f757a135ed1e52b0b9f6e320038e6e0690e03800fb10cb7db990a180b1223414000720ad62aa58fae0ac6779601c836c32be8c71c96643491ec8f558abae73
SSDEEP 3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/eC2l:WFzDqa86hV6uRRqX1evPlwAK
TLSH
T1DB447238F88C552EC679D6F0A8F447C6FE582D6B3550A9CD5BA63388483364B68CDE0C
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1296-13-0x0000000074722000-0x0000000074723000-memory.dmp

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memory/1296-2-0x00000000056E0000-0x0000000005C9A000-memory.dmp

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memory/1296-5-0x0000000002A50000-0x0000000002A5A000-memory.dmp

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memory/1296-6-0x0000000002A40000-0x0000000002A4A000-memory.dmp

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memory/1296-0-0x0000000074722000-0x0000000074723000-memory.dmp

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memory/1296-1-0x0000000000580000-0x00000000005C6000-memory.dmp

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memory/1296-15-0x0000000074710000-0x0000000074ECC000-memory.dmp

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memory/1296-3-0x0000000004FE0000-0x0000000005072000-memory.dmp

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memory/1296-4-0x0000000074710000-0x0000000074ECC000-memory.dmp

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memory/1296-23-0x0000000074710000-0x0000000074ECC000-memory.dmp

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memory/1972-25-0x0000000074710000-0x0000000074ECC000-memory.dmp

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memory/1972-14-0x0000000074710000-0x0000000074ECC000-memory.dmp

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memory/1972-12-0x0000000074710000-0x0000000074ECC000-memory.dmp

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memory/2676-24-0x0000000000400000-0x0000000000430000-memory.dmp

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memory/2772-47-0x000001C8001E0000-0x000001C8002E0000-memory.dmp

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memory/2772-79-0x000001C801CF0000-0x000001C801D10000-memory.dmp

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memory/2772-49-0x000001C8001E0000-0x000001C8002E0000-memory.dmp

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memory/2772-48-0x000001C8001E0000-0x000001C8002E0000-memory.dmp

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memory/2772-52-0x000001C801B60000-0x000001C801B80000-memory.dmp

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memory/2772-93-0x000001C8141D0000-0x000001C8141F0000-memory.dmp

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memory/2772-53-0x000001C801DD0000-0x000001C801ED0000-memory.dmp

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memory/3488-28-0x000001F3C2E50000-0x000001F3C2F40000-memory.dmp

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memory/5440-27-0x0000000074710000-0x0000000074ECC000-memory.dmp

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memory/5440-21-0x0000000074710000-0x0000000074ECC000-memory.dmp

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memory/5440-20-0x0000000074710000-0x0000000074ECC000-memory.dmp

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