asyncrat | 4579692bf5d6ad92c0f936c9ed606195904e959b8bf6d8dd3e1d21271dc39b77

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-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
behavioral1/memory/2176-18-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3053180483-1881419501-3594244048-1000\Control Panel\International\Geo\Nation	4579692bf5d6ad92c0f936c9ed606195904e959b8bf6d8dd3e1d21271dc39b77.exe

Executes dropped EXE 2 IoCs

pid	Process
2060	HiPatchService.exe
2492	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-1-5-21-3053180483-1881419501-3594244048-1000\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 2060 set thread context of 2176	2060	HiPatchService.exe	94
PID 2492 set thread context of 4040	2492	HiPatchService.exe	95

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	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
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 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
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	RegAsm.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
556	timeout.exe

Suspicious behavior: EnumeratesProcesses 52 IoCs

pid	Process
2176	RegAsm.exe
2176	RegAsm.exe
2176	RegAsm.exe
2176	RegAsm.exe
2176	RegAsm.exe
2176	RegAsm.exe
4040	RegAsm.exe
4040	RegAsm.exe
4040	RegAsm.exe
4040	RegAsm.exe
4040	RegAsm.exe
4040	RegAsm.exe
4040	RegAsm.exe
4040	RegAsm.exe
2176	RegAsm.exe
2176	RegAsm.exe
4040	RegAsm.exe
4040	RegAsm.exe
2176	RegAsm.exe
2176	RegAsm.exe
4040	RegAsm.exe
2176	RegAsm.exe
4040	RegAsm.exe
2176	RegAsm.exe
2176	RegAsm.exe
4040	RegAsm.exe
2176	RegAsm.exe
4040	RegAsm.exe
4040	RegAsm.exe
4040	RegAsm.exe
4040	RegAsm.exe
4040	RegAsm.exe
2176	RegAsm.exe
2176	RegAsm.exe
4040	RegAsm.exe
4040	RegAsm.exe
4040	RegAsm.exe
4040	RegAsm.exe
4040	RegAsm.exe
4040	RegAsm.exe
4040	RegAsm.exe
4040	RegAsm.exe
2176	RegAsm.exe
2176	RegAsm.exe
2176	RegAsm.exe
2176	RegAsm.exe
2176	RegAsm.exe
2176	RegAsm.exe
2176	RegAsm.exe
2176	RegAsm.exe
2176	RegAsm.exe
2176	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4040	RegAsm.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4616 wrote to memory of 2492	4616	4579692bf5d6ad92c0f936c9ed606195904e959b8bf6d8dd3e1d21271dc39b77.exe	88
PID 4616 wrote to memory of 628	4616	4579692bf5d6ad92c0f936c9ed606195904e959b8bf6d8dd3e1d21271dc39b77.exe	89
PID 628 wrote to memory of 556	628	cmd.exe	91
PID 2060 wrote to memory of 2176	2060	HiPatchService.exe	94
PID 2060 wrote to memory of 2176	2060	HiPatchService.exe	94
PID 2060 wrote to memory of 2176	2060	HiPatchService.exe	94
PID 2060 wrote to memory of 2176	2060	HiPatchService.exe	94
PID 2060 wrote to memory of 2176	2060	HiPatchService.exe	94
PID 2492 wrote to memory of 4040	2492	HiPatchService.exe	95
PID 2492 wrote to memory of 4040	2492	HiPatchService.exe	95
PID 2492 wrote to memory of 4040	2492	HiPatchService.exe	95
PID 2492 wrote to memory of 4040	2492	HiPatchService.exe	95
PID 2492 wrote to memory of 4040	2492	HiPatchService.exe	95

C:\Users\Admin\AppData\Local\Temp\4579692bf5d6ad92c0f936c9ed606195904e959b8bf6d8dd3e1d21271dc39b77.exe
"C:\Users\Admin\AppData\Local\Temp\4579692bf5d6ad92c0f936c9ed606195904e959b8bf6d8dd3e1d21271dc39b77.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4616
- 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:2492
- - 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
    - Suspicious use of AdjustPrivilegeToken
    PID:4040
- 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:628
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 180
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:556

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:2060
- 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
  PID:2176

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:1880

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

HiPatchService.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\HiPatchService.exe.log
Size 1KB
SHA256 48178f884b8a4dd96e330b210b0530667d9473a7629fc6b4ad12b614bf438ee8
MD5 7ebe314bf617dc3e48b995a6c352740c
SHA1 538f643b7b30f9231a3035c448607f767527a870
SHA512 0ba9d8f4244c15285e254d27b4bff7c49344ff845c48bc0bf0d8563072fab4d6f7a6abe6b6742e8375a08e9a3b3e5d5dc4937ab428dbe2dd8e62892fda04507e
TLSH
T17721EF303222B4D84D022F430C0869C513FF4758B664EE2CB959331EDD2A017AF321E3
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 3fd04476df65cc0896a2b57ff2c52922ea757530be94ecf0190af3452710f96f
MD5 fce2bc9c006088e0b0f1b3f2e5337773
SHA1 327718f3645ae0b0cc167de2220046ae2cc1297b
SHA512 2d637d09389cf1765a8a7dcff28967b93b01ed14e25c2bae2a18e420496096c2e89d01e78cb9b5cf00c05ed6d5c97cc4f4149cfaeb8c3a72e0b6174d23bded19
SSDEEP 3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/eC2h:WFzDqa86hV6uRRqX1evPlwAi
TLSH
T118447238F88C552EC679D6F0A8F447C6FE582D6B3551A9CD5BA63388483364B68CDE0C
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2060-11-0x00000000059E0000-0x00000000059F0000-memory.dmp

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memory/2176-18-0x0000000000400000-0x0000000000430000-memory.dmp

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memory/2492-16-0x00000000054F0000-0x0000000005500000-memory.dmp

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memory/4616-0-0x00000000005D0000-0x0000000000616000-memory.dmp

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memory/4616-1-0x0000000005510000-0x0000000005AB4000-memory.dmp

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memory/4616-2-0x0000000005000000-0x0000000005092000-memory.dmp

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memory/4616-3-0x0000000005290000-0x00000000052A0000-memory.dmp

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memory/4616-4-0x00000000051B0000-0x00000000051BA000-memory.dmp

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memory/4616-5-0x00000000051A0000-0x00000000051AA000-memory.dmp

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