asyncrat | b374bfba1205216284a00e9995e6ce28a036d60071c25c42f5a09cec5e8a8527

Analysis

max time kernel
59s
max time network
55s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
29/09/2026, 19:43

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General

Target
b374bfba1205216284a00e9995e6ce28a036d60071c25c42f5a09cec5e8a8527.exe
Size 272KB
Sample260929-yfap1azt2j
SHA256 b374bfba1205216284a00e9995e6ce28a036d60071c25c42f5a09cec5e8a8527
MD5 9b19f2899f2fe32c89d4fd0b3b0b486f
SHA1 d09a5876e9a0d921ceb3cf53508a3e5c010e5a84
SHA512 cb3c442c5c976c5ba9e2a4d015af892081357991c41c5205b0f5c532fa05ad2f5e0304767a4b248d59e20150fa050cd92390ae3e63d19dcd624212ef1fed2359
SSDEEP 3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/eCBl:WFzDqa86hV6uRRqX1evPlwAdl
TLSH
T1CB547238F88C552EC679D6F0A8F447C6FE582D6B3551A9CD6BA63388443364B68CDE0C
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery execution 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/4376-24-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 2 IoCs

pid	Process
3956	HiPatchService.exe
3948	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-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	b374bfba1205216284a00e9995e6ce28a036d60071c25c42f5a09cec5e8a8527.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3956 set thread context of 4376	3956	HiPatchService.exe	96
PID 3948 set thread context of 476	3948	HiPatchService.exe	97

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

System Information Discovery
T1082

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
700	cmd.exe

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	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	b374bfba1205216284a00e9995e6ce28a036d60071c25c42f5a09cec5e8a8527.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HiPatchService.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HiPatchService.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3604	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3956	HiPatchService.exe
3956	HiPatchService.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3956	HiPatchService.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4252 wrote to memory of 3948	4252	b374bfba1205216284a00e9995e6ce28a036d60071c25c42f5a09cec5e8a8527.exe	91
PID 4252 wrote to memory of 700	4252	b374bfba1205216284a00e9995e6ce28a036d60071c25c42f5a09cec5e8a8527.exe	92
PID 700 wrote to memory of 3604	700	cmd.exe	94
PID 3956 wrote to memory of 1956	3956	HiPatchService.exe	95
PID 3956 wrote to memory of 4376	3956	HiPatchService.exe	96
PID 3956 wrote to memory of 4376	3956	HiPatchService.exe	96
PID 3956 wrote to memory of 4376	3956	HiPatchService.exe	96
PID 3956 wrote to memory of 4376	3956	HiPatchService.exe	96
PID 3956 wrote to memory of 4376	3956	HiPatchService.exe	96
PID 3948 wrote to memory of 476	3948	HiPatchService.exe	97
PID 3948 wrote to memory of 476	3948	HiPatchService.exe	97
PID 3948 wrote to memory of 476	3948	HiPatchService.exe	97
PID 3948 wrote to memory of 476	3948	HiPatchService.exe	97
PID 3948 wrote to memory of 476	3948	HiPatchService.exe	97

C:\Users\Admin\AppData\Local\Temp\b374bfba1205216284a00e9995e6ce28a036d60071c25c42f5a09cec5e8a8527.exe
"C:\Users\Admin\AppData\Local\Temp\b374bfba1205216284a00e9995e6ce28a036d60071c25c42f5a09cec5e8a8527.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4252
- 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:3948
- - 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
    PID:476
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:700
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 180
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3604

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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3956
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:1956
- 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
  PID:4376

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:940

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

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

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

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 272KB
SHA256 ac9c5c2266113fb4107e7a3b0525673daeeebaedb81fb370b7dad8a5efdb90bd
MD5 36d8a5243543c7aee9a491184322b8ba
SHA1 472b00c8868128cc7771867904636261350d63a0
SHA512 5b9134076239b62f9626005415c4207d2e8de2a493567869c5036bde91e72a295dbcff2bbd14728070c9f87f64afccaae3c3fa2a913890fc3c17eb29646bc5c2
SSDEEP 3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/eCBU:WFzDqa86hV6uRRqX1evPlwAdU
TLSH
T1BB547238F88C552EC679D6F0A8F447C6FE582D6B3551A9CD6BA63388443364B68CDE0C
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3948-27-0x00000000750D0000-0x000000007588C000-memory.dmp

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memory/3948-21-0x00000000750D0000-0x000000007588C000-memory.dmp

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memory/3948-20-0x00000000750D0000-0x000000007588C000-memory.dmp

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memory/3956-12-0x00000000750D0000-0x000000007588C000-memory.dmp

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memory/3956-14-0x00000000750D0000-0x000000007588C000-memory.dmp

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memory/3956-25-0x00000000750D0000-0x000000007588C000-memory.dmp

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memory/4252-5-0x00000000750D0000-0x000000007588C000-memory.dmp

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memory/4252-13-0x00000000750E2000-0x00000000750E3000-memory.dmp

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memory/4252-0-0x00000000750E2000-0x00000000750E3000-memory.dmp

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memory/4252-15-0x00000000750D0000-0x000000007588C000-memory.dmp

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memory/4252-6-0x00000000057E0000-0x00000000057EA000-memory.dmp

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memory/4252-3-0x00000000057F0000-0x0000000005882000-memory.dmp

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memory/4252-22-0x00000000750D0000-0x000000007588C000-memory.dmp

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memory/4252-2-0x0000000005EC0000-0x000000000647A000-memory.dmp

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memory/4252-4-0x0000000005890000-0x000000000589A000-memory.dmp

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memory/4252-1-0x0000000000DC0000-0x0000000000E06000-memory.dmp

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memory/4376-24-0x0000000000400000-0x0000000000430000-memory.dmp

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