asyncrat | 84ee86c633ff7c291cace991a86fbc6d4a9104500872526b0a8284349abec7e4

Analysis

max time kernel
58s
max time network
60s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
09/10/2026, 19:44

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General

Target
84ee86c633ff7c291cace991a86fbc6d4a9104500872526b0a8284349abec7e4.exe
Size 273KB
Sample261009-yfx6asbs8p
SHA256 84ee86c633ff7c291cace991a86fbc6d4a9104500872526b0a8284349abec7e4
MD5 a3f18c4055db9275b23dd60517e94556
SHA1 c8e3d863817a39fd417a69c3aa5c502a197dfa07
SHA512 8ed7df42eb7170eb554c7f7a999efe3b90408c125d14e4915aba308535cad3e48cb16e61f452f11b3d6eec0dee47a7bc6a76a729d2dd939c566527cef738a614
SSDEEP 3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/eCBl:WFzDqa86hV6uRRqX1evPlwAdl
TLSH
T19A547238F88C552EC679D6F0A8F447C6FE582C6B3551A9CD5BA63388483364B68CDE1C
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/3984-19-0x0000000000400000-0x0000000000430000-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-1-5-21-1696934516-3600988056-1840298893-1000\Control Panel\International\Geo\Nation	84ee86c633ff7c291cace991a86fbc6d4a9104500872526b0a8284349abec7e4.exe

Executes dropped EXE 2 IoCs

pid	Process
5012	HiPatchService.exe
2316	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-1-5-21-1696934516-3600988056-1840298893-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	84ee86c633ff7c291cace991a86fbc6d4a9104500872526b0a8284349abec7e4.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5012 set thread context of 3984	5012	HiPatchService.exe	107
PID 2316 set thread context of 4984	2316	HiPatchService.exe	108

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
856	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	RegAsm.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	84ee86c633ff7c291cace991a86fbc6d4a9104500872526b0a8284349abec7e4.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
2212	timeout.exe

Suspicious behavior: EnumeratesProcesses 52 IoCs

pid	Process
3984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
4984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe
4984	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3984	RegAsm.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4512 wrote to memory of 2316	4512	84ee86c633ff7c291cace991a86fbc6d4a9104500872526b0a8284349abec7e4.exe	103
PID 4512 wrote to memory of 856	4512	84ee86c633ff7c291cace991a86fbc6d4a9104500872526b0a8284349abec7e4.exe	104
PID 856 wrote to memory of 2212	856	cmd.exe	106
PID 5012 wrote to memory of 3984	5012	HiPatchService.exe	107
PID 5012 wrote to memory of 3984	5012	HiPatchService.exe	107
PID 5012 wrote to memory of 3984	5012	HiPatchService.exe	107
PID 5012 wrote to memory of 3984	5012	HiPatchService.exe	107
PID 5012 wrote to memory of 3984	5012	HiPatchService.exe	107
PID 2316 wrote to memory of 4984	2316	HiPatchService.exe	108
PID 2316 wrote to memory of 4984	2316	HiPatchService.exe	108
PID 2316 wrote to memory of 4984	2316	HiPatchService.exe	108
PID 2316 wrote to memory of 4984	2316	HiPatchService.exe	108
PID 2316 wrote to memory of 4984	2316	HiPatchService.exe	108

C:\Users\Admin\AppData\Local\Temp\84ee86c633ff7c291cace991a86fbc6d4a9104500872526b0a8284349abec7e4.exe
"C:\Users\Admin\AppData\Local\Temp\84ee86c633ff7c291cace991a86fbc6d4a9104500872526b0a8284349abec7e4.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4512
- 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:2316
- - 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:4984
- 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:856
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 180
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2212

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:5012
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Reads the TCP/IP host and domain name from the registry
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3984

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:3560

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

System Network Configuration Discovery

T1016

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 273KB
SHA256 d61eecdf1a19563ff3e33292b8463ee349b737e920c590c6b93efb075705fa9f
MD5 427e20ba724a6d841ef2969e13bbc0fa
SHA1 f4cae9aea55087b24f71a10dcc32ba0c9443ac8d
SHA512 b30bbbfcd32d13449a02276c11ff82a771522057da920ba182dac939a5fca60d3205de7d2fdd4255a8d481f9c83914846429d04b86a9ca17012c4fea21ea7678
SSDEEP 3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/eCBh:WFzDqa86hV6uRRqX1evPlwAdh
TLSH
T1D7547238F88C552EC679D5F0A8F447C6FE582C6B3551A9CD6BA63388483364B68CDE1C
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2316-17-0x0000000005530000-0x0000000005540000-memory.dmp

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memory/3984-19-0x0000000000400000-0x0000000000430000-memory.dmp

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memory/4512-4-0x0000000005730000-0x000000000573A000-memory.dmp

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memory/4512-5-0x0000000005720000-0x000000000572A000-memory.dmp

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memory/4512-3-0x00000000059F0000-0x0000000005A00000-memory.dmp

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memory/4512-13-0x00000000059F0000-0x0000000005A00000-memory.dmp

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memory/4512-0-0x0000000000CF0000-0x0000000000D36000-memory.dmp

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memory/4512-2-0x0000000005760000-0x00000000057F2000-memory.dmp

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memory/4512-1-0x0000000005C70000-0x0000000006214000-memory.dmp

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memory/5012-11-0x0000000005A10000-0x0000000005A20000-memory.dmp

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