asyncrat | ff0d201c45a0ccee0b80b7fa89f0104dab0e9e05fd44a29412340a159289695a

Analysis

max time kernel
58s
max time network
58s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
25/08/2026, 19:01

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General

Target
ff0d201c45a0ccee0b80b7fa89f0104dab0e9e05fd44a29412340a159289695a.exe
Size 272KB
Sample260825-xpcehsvtas
SHA256 ff0d201c45a0ccee0b80b7fa89f0104dab0e9e05fd44a29412340a159289695a
MD5 801574acf0ed91d9b009d67206be3d3a
SHA1 45254192d7f397714d93f1091f8e8ba5259f997e
SHA512 f31c139740512641b3ae07fa57f9bbcc187ad4f3fd500d39c78c05c5b04d28c07486d49024851510552203eebf3d254d31224134955d8f97fd90884372d77164
SSDEEP 3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/eCBK:WFzDqa86hV6uRRqX1evPlwAdK
TLSH
T1A0447238F88C552EC679D6F0A9F447C6FE582C6B3551A9CD6BA63388443364B68CDE0C
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
behavioral1/memory/2428-19-0x0000000000400000-0x0000000000430000-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	ff0d201c45a0ccee0b80b7fa89f0104dab0e9e05fd44a29412340a159289695a.exe

Executes dropped EXE 2 IoCs

pid	Process
5884	HiPatchService.exe
5092	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"	ff0d201c45a0ccee0b80b7fa89f0104dab0e9e05fd44a29412340a159289695a.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5884 set thread context of 2428	5884	HiPatchService.exe	93
PID 5092 set thread context of 3896	5092	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
2600	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	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	ff0d201c45a0ccee0b80b7fa89f0104dab0e9e05fd44a29412340a159289695a.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 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
1240	timeout.exe

Suspicious behavior: EnumeratesProcesses 52 IoCs

pid	Process
5092	HiPatchService.exe
5092	HiPatchService.exe
2428	RegAsm.exe
2428	RegAsm.exe
2428	RegAsm.exe
2428	RegAsm.exe
2428	RegAsm.exe
2428	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe
2428	RegAsm.exe
2428	RegAsm.exe
2428	RegAsm.exe
2428	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe
2428	RegAsm.exe
2428	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe
2428	RegAsm.exe
2428	RegAsm.exe
2428	RegAsm.exe
2428	RegAsm.exe
2428	RegAsm.exe
2428	RegAsm.exe
2428	RegAsm.exe
2428	RegAsm.exe
2428	RegAsm.exe
2428	RegAsm.exe
2428	RegAsm.exe
2428	RegAsm.exe
2428	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe
3896	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5092	HiPatchService.exe
Token: SeDebugPrivilege	3896	RegAsm.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4376 wrote to memory of 5092	4376	ff0d201c45a0ccee0b80b7fa89f0104dab0e9e05fd44a29412340a159289695a.exe	87
PID 4376 wrote to memory of 2600	4376	ff0d201c45a0ccee0b80b7fa89f0104dab0e9e05fd44a29412340a159289695a.exe	88
PID 2600 wrote to memory of 1240	2600	cmd.exe	90
PID 5884 wrote to memory of 2428	5884	HiPatchService.exe	93
PID 5884 wrote to memory of 2428	5884	HiPatchService.exe	93
PID 5884 wrote to memory of 2428	5884	HiPatchService.exe	93
PID 5884 wrote to memory of 2428	5884	HiPatchService.exe	93
PID 5884 wrote to memory of 2428	5884	HiPatchService.exe	93
PID 5092 wrote to memory of 1784	5092	HiPatchService.exe	96
PID 5092 wrote to memory of 3896	5092	HiPatchService.exe	97
PID 5092 wrote to memory of 3896	5092	HiPatchService.exe	97
PID 5092 wrote to memory of 3896	5092	HiPatchService.exe	97
PID 5092 wrote to memory of 3896	5092	HiPatchService.exe	97
PID 5092 wrote to memory of 3896	5092	HiPatchService.exe	97

C:\Users\Admin\AppData\Local\Temp\ff0d201c45a0ccee0b80b7fa89f0104dab0e9e05fd44a29412340a159289695a.exe
"C:\Users\Admin\AppData\Local\Temp\ff0d201c45a0ccee0b80b7fa89f0104dab0e9e05fd44a29412340a159289695a.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4376
- 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 behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5092
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:1784
- - 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:3896
- 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:2600
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 180
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:1240

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:5884
- 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:2428

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:4604

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

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 272KB
SHA256 7de1a8da64fca640d437ed0257f22cb44670e7682901585a1003921b7b383d81
MD5 a0329e2ac059bcf2d7f09cec574cb9c9
SHA1 372e40309e8f299a8697477da0c126dc2b4a2f83
SHA512 4fb73273fe8e8b99a6fcc1a509a8436c1aa130d7bdee5a2219abf0170db81d14e606a1ece3ba98a08c2bbb0801ae16829d2696dbdb32b8a81b320bb5bc64317f
SSDEEP 3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/eCBh:WFzDqa86hV6uRRqX1evPlwAdh
TLSH
T164447238F88C552EC679D6F0A9F447C6FE582C6B3551A9CD6BA63388443364B68CDE0C
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2428-19-0x0000000000400000-0x0000000000430000-memory.dmp

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memory/4376-3-0x0000000005550000-0x0000000005560000-memory.dmp

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memory/4376-5-0x00000000052F0000-0x00000000052FA000-memory.dmp

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memory/4376-4-0x0000000005300000-0x000000000530A000-memory.dmp

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memory/4376-13-0x0000000005550000-0x0000000005560000-memory.dmp

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memory/4376-0-0x00000000008A0000-0x00000000008E6000-memory.dmp

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memory/4376-2-0x0000000005340000-0x00000000053D2000-memory.dmp

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memory/4376-1-0x0000000005850000-0x0000000005DF4000-memory.dmp

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memory/5092-17-0x0000000005770000-0x0000000005780000-memory.dmp

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memory/5884-11-0x00000000052A0000-0x00000000052B0000-memory.dmp

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