asyncrat | df025008bab8a9d1b780276526007d60abaafb894af2cca82bc633c715945ec5

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
22/03/2025, 06:10

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General

Target

4478036b24730075b2da4b9c1a601533.exe
Size

272KB
MD5

4478036b24730075b2da4b9c1a601533
SHA1

34dfa5ee56ed334f2ad46e2dfdc024498d27dc56
SHA256

d233b1e7a55864b83d22ab61d24b66a4d68fe503efe6b568bd058833f146f3f9
SHA512

ae887bfc70049ffc72fb250e50f5f1ea6825ce4765c1174a073e804fb1b21fd4032d30e28ff52e49dc61e070aa98ef393646f8824a10f6946eb40566c6cdd7ef
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sdT3:WFzDqa86hV6uRRqX1evPlwAEd7

Score

10^/10

asyncrat discovery 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

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
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
behavioral14/memory/3528-29-0x0000000000400000-0x0000000000430000-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-1-5-21-3975168204-1612096350-4002976354-1000\Control Panel\International\Geo\Nation	4478036b24730075b2da4b9c1a601533.exe

Executes dropped EXE 1 IoCs

pid	Process
1672	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-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	4478036b24730075b2da4b9c1a601533.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1672 set thread context of 3528	1672	HiPatchService.exe	98

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 5 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	4478036b24730075b2da4b9c1a601533.exe

Checks processor information in registry 2 TTPs 2 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

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4784	timeout.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
1672	HiPatchService.exe
1672	HiPatchService.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe
3528	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1672	HiPatchService.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1576 wrote to memory of 1672	1576	4478036b24730075b2da4b9c1a601533.exe	92
PID 1576 wrote to memory of 1672	1576	4478036b24730075b2da4b9c1a601533.exe	92
PID 1576 wrote to memory of 1672	1576	4478036b24730075b2da4b9c1a601533.exe	92
PID 1576 wrote to memory of 3100	1576	4478036b24730075b2da4b9c1a601533.exe	93
PID 1576 wrote to memory of 3100	1576	4478036b24730075b2da4b9c1a601533.exe	93
PID 1576 wrote to memory of 3100	1576	4478036b24730075b2da4b9c1a601533.exe	93
PID 3100 wrote to memory of 4784	3100	cmd.exe	95
PID 3100 wrote to memory of 4784	3100	cmd.exe	95
PID 3100 wrote to memory of 4784	3100	cmd.exe	95
PID 1672 wrote to memory of 4920	1672	HiPatchService.exe	97
PID 1672 wrote to memory of 4920	1672	HiPatchService.exe	97
PID 1672 wrote to memory of 4920	1672	HiPatchService.exe	97
PID 1672 wrote to memory of 3528	1672	HiPatchService.exe	98
PID 1672 wrote to memory of 3528	1672	HiPatchService.exe	98
PID 1672 wrote to memory of 3528	1672	HiPatchService.exe	98
PID 1672 wrote to memory of 3528	1672	HiPatchService.exe	98
PID 1672 wrote to memory of 3528	1672	HiPatchService.exe	98
PID 1672 wrote to memory of 3528	1672	HiPatchService.exe	98
PID 1672 wrote to memory of 3528	1672	HiPatchService.exe	98
PID 1672 wrote to memory of 3528	1672	HiPatchService.exe	98

C:\Users\Admin\AppData\Local\Temp\4478036b24730075b2da4b9c1a601533.exe
"C:\Users\Admin\AppData\Local\Temp\4478036b24730075b2da4b9c1a601533.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1576
- 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:1672
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:4920
- - 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:3528
- 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:3100
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 180
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4784

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:1876

Network

MITRE ATT&CK Enterprise v15

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

C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat

Filesize
213B

MD5
0955cb4b691d44b37f8b6fad48a33b8e

SHA1
9dae759ae014cc124ab6eed7c8035788c124ae4a

SHA256
9092dbb1ca1767d1966b7f79349dd95a802a68248251bf070c0f1d74d5681d71

SHA512
08b868a028c1e8d29ed643416850df16f58d44668f9193b46bd3934965e5617a0a4015fc52815c5456023dbde01023450d295b76d936a936f26b602e764b0235

Download Submit
C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe

Filesize
272KB

MD5
74c0ffca9f2d62956a85f4fc9e136671

SHA1
06567ef4dbcd23663033fc30437a11214a175953

SHA256
6baa3eca1aa643d3b86c1a8d844164fa9c0bac7c41cb37ecc333ab30582e849e

SHA512
3d447cd4083a372a626fb28d5f7023c613627f058bbbe27215c7a3f94ce121cc873f9895d219cc9a8314310d532affbf98d1d8cb542fc9c3402ed33831a7bafa

Download Submit
memory/1576-6-0x00000000055E0000-0x00000000055EA000-memory.dmp

Filesize
40KB

Download
memory/1576-3-0x0000000005660000-0x00000000056F2000-memory.dmp

Filesize
584KB

Download
memory/1576-4-0x0000000074980000-0x0000000075130000-memory.dmp

Filesize
7.7MB

Download
memory/1576-5-0x00000000055F0000-0x00000000055FA000-memory.dmp

Filesize
40KB

Download
memory/1576-0-0x000000007498E000-0x000000007498F000-memory.dmp

Filesize
4KB

Download
memory/1576-10-0x000000007498E000-0x000000007498F000-memory.dmp

Filesize
4KB

Download
memory/1576-2-0x0000000005B70000-0x0000000006114000-memory.dmp

Filesize
5.6MB

Download
memory/1576-25-0x0000000074980000-0x0000000075130000-memory.dmp

Filesize
7.7MB

Download
memory/1576-1-0x0000000000BB0000-0x0000000000BF6000-memory.dmp

Filesize
280KB

Download
memory/1672-26-0x0000000074980000-0x0000000075130000-memory.dmp

Filesize
7.7MB

Download
memory/1672-28-0x0000000074980000-0x0000000075130000-memory.dmp

Filesize
7.7MB

Download
memory/1672-31-0x0000000074980000-0x0000000075130000-memory.dmp

Filesize
7.7MB

Download
memory/3528-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download