asyncrat | 4bcbb8983fe7425976c5a1789deff73fb138e80981f5ebfef1f835bcc6757760

Resubmissions

14/04/2025, 07:51

250414-jp1kfssjz9 10

14/04/2025, 07:46

250414-jl9nyssjt9 10

08/04/2025, 15:58

250408-tevasswl18 10

08/04/2025, 14:19

250408-rm2nqsvqw2 10

Analysis

max time kernel
149s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20250410-en
resource tags

arch:x64arch:x86image:win11-20250410-enlocale:en-usos:windows11-21h2-x64system
submitted
14/04/2025, 07:46

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Report Analysis Logs

General

Target

f628fa20e85aaf1cc562cfd512392d3d12da2ef70adc31068f1e3d7f2b0a4f3b.exe
Size

273KB
MD5

3ef5f71fdec671a56a286ea1866bb640
SHA1

04e90d67cfb7cb470ea9e6d48f4fc765b0ddb472
SHA256

f628fa20e85aaf1cc562cfd512392d3d12da2ef70adc31068f1e3d7f2b0a4f3b
SHA512

5e724aef6ad8258cf23363911fb74780ff9b6cd469c0ba478d72de2d86b295ed63901e89a0a05466b2c9a7925244f6b02aef3ab9d06f325a1301eb3aedd431d2
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sdT/u:WFzDqa86hV6uRRqX1evPlwAEdS

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
behavioral5/memory/4244-24-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 2 IoCs

pid	Process
232	HiPatchService.exe
6008	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-1-5-21-3437575798-4173230203-4015467660-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	f628fa20e85aaf1cc562cfd512392d3d12da2ef70adc31068f1e3d7f2b0a4f3b.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 232 set thread context of 4244	232	HiPatchService.exe	87
PID 6008 set thread context of 5008	6008	HiPatchService.exe	89

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	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	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f628fa20e85aaf1cc562cfd512392d3d12da2ef70adc31068f1e3d7f2b0a4f3b.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
3432	timeout.exe

Suspicious behavior: EnumeratesProcesses 48 IoCs

pid	Process
232	HiPatchService.exe
232	HiPatchService.exe
232	HiPatchService.exe
232	HiPatchService.exe
6008	HiPatchService.exe
6008	HiPatchService.exe
4244	RegAsm.exe
4244	RegAsm.exe
4244	RegAsm.exe
4244	RegAsm.exe
4244	RegAsm.exe
4244	RegAsm.exe
5008	RegAsm.exe
5008	RegAsm.exe
5008	RegAsm.exe
5008	RegAsm.exe
5008	RegAsm.exe
5008	RegAsm.exe
4244	RegAsm.exe
5008	RegAsm.exe
4244	RegAsm.exe
5008	RegAsm.exe
4244	RegAsm.exe
5008	RegAsm.exe
5008	RegAsm.exe
4244	RegAsm.exe
4244	RegAsm.exe
5008	RegAsm.exe
4244	RegAsm.exe
5008	RegAsm.exe
4244	RegAsm.exe
5008	RegAsm.exe
4244	RegAsm.exe
5008	RegAsm.exe
4244	RegAsm.exe
5008	RegAsm.exe
5008	RegAsm.exe
4244	RegAsm.exe
5008	RegAsm.exe
4244	RegAsm.exe
5008	RegAsm.exe
4244	RegAsm.exe
4244	RegAsm.exe
5008	RegAsm.exe
5008	RegAsm.exe
4244	RegAsm.exe
5008	RegAsm.exe
4244	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	232	HiPatchService.exe
Token: SeDebugPrivilege	6008	HiPatchService.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 4832 wrote to memory of 232	4832	cmd.exe	80
PID 4832 wrote to memory of 232	4832	cmd.exe	80
PID 4832 wrote to memory of 232	4832	cmd.exe	80
PID 1824 wrote to memory of 6008	1824	f628fa20e85aaf1cc562cfd512392d3d12da2ef70adc31068f1e3d7f2b0a4f3b.exe	81
PID 1824 wrote to memory of 6008	1824	f628fa20e85aaf1cc562cfd512392d3d12da2ef70adc31068f1e3d7f2b0a4f3b.exe	81
PID 1824 wrote to memory of 6008	1824	f628fa20e85aaf1cc562cfd512392d3d12da2ef70adc31068f1e3d7f2b0a4f3b.exe	81
PID 1824 wrote to memory of 2832	1824	f628fa20e85aaf1cc562cfd512392d3d12da2ef70adc31068f1e3d7f2b0a4f3b.exe	82
PID 1824 wrote to memory of 2832	1824	f628fa20e85aaf1cc562cfd512392d3d12da2ef70adc31068f1e3d7f2b0a4f3b.exe	82
PID 1824 wrote to memory of 2832	1824	f628fa20e85aaf1cc562cfd512392d3d12da2ef70adc31068f1e3d7f2b0a4f3b.exe	82
PID 2832 wrote to memory of 3432	2832	cmd.exe	84
PID 2832 wrote to memory of 3432	2832	cmd.exe	84
PID 2832 wrote to memory of 3432	2832	cmd.exe	84
PID 232 wrote to memory of 5796	232	HiPatchService.exe	85
PID 232 wrote to memory of 5796	232	HiPatchService.exe	85
PID 232 wrote to memory of 5796	232	HiPatchService.exe	85
PID 232 wrote to memory of 5208	232	HiPatchService.exe	86
PID 232 wrote to memory of 5208	232	HiPatchService.exe	86
PID 232 wrote to memory of 5208	232	HiPatchService.exe	86
PID 232 wrote to memory of 4244	232	HiPatchService.exe	87
PID 232 wrote to memory of 4244	232	HiPatchService.exe	87
PID 232 wrote to memory of 4244	232	HiPatchService.exe	87
PID 232 wrote to memory of 4244	232	HiPatchService.exe	87
PID 232 wrote to memory of 4244	232	HiPatchService.exe	87
PID 232 wrote to memory of 4244	232	HiPatchService.exe	87
PID 232 wrote to memory of 4244	232	HiPatchService.exe	87
PID 232 wrote to memory of 4244	232	HiPatchService.exe	87
PID 6008 wrote to memory of 5024	6008	HiPatchService.exe	88
PID 6008 wrote to memory of 5024	6008	HiPatchService.exe	88
PID 6008 wrote to memory of 5024	6008	HiPatchService.exe	88
PID 6008 wrote to memory of 5008	6008	HiPatchService.exe	89
PID 6008 wrote to memory of 5008	6008	HiPatchService.exe	89
PID 6008 wrote to memory of 5008	6008	HiPatchService.exe	89
PID 6008 wrote to memory of 5008	6008	HiPatchService.exe	89
PID 6008 wrote to memory of 5008	6008	HiPatchService.exe	89
PID 6008 wrote to memory of 5008	6008	HiPatchService.exe	89
PID 6008 wrote to memory of 5008	6008	HiPatchService.exe	89
PID 6008 wrote to memory of 5008	6008	HiPatchService.exe	89

C:\Users\Admin\AppData\Local\Temp\f628fa20e85aaf1cc562cfd512392d3d12da2ef70adc31068f1e3d7f2b0a4f3b.exe
"C:\Users\Admin\AppData\Local\Temp\f628fa20e85aaf1cc562cfd512392d3d12da2ef70adc31068f1e3d7f2b0a4f3b.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1824
- 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:6008
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:5024
- - 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:5008
- 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:2832
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 180
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3432

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:4832
- 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:232
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:5796
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:5208
- - 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:4244

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2092

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\HiPatchService.exe.log

Filesize
1KB

MD5
ac45cc773216001c355992d869450b47

SHA1
1f19c3839b521e1bf1ec7928f32f45234f38ea40

SHA256
c9c03abe98c496376975747c9b617f5f6e1b50aec09aa8be31aa24e81254901f

SHA512
3d73620a59089bc05d60ae07f0811ddacd1661599eca096cd9927813f86dc9cebac1de221691373601c743250694de43e408a9e607e813fb28260b1509f84574

Download Submit
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
273KB

MD5
e2a50b0ac50091174d4c8724ca4f66f8

SHA1
830552d74007adc5e40c22bce8633a21b7c24192

SHA256
b636c951b6438f2126bc8e7395f411bf400603f0c6b0ed30c251e5406bc8e9ab

SHA512
adf60fbbeb4dfd7d3c58a12b8bda4dd3984042a8a13b5bf66c6b995f4cf14ff8f86d4fa62c1300d5e30ccd28ece9b2ee096ae3f9dee9c15e2c5aabc44d31604d

Download Submit
memory/232-13-0x00000000743D0000-0x0000000074B81000-memory.dmp

Filesize
7.7MB

Download
memory/232-14-0x00000000743D0000-0x0000000074B81000-memory.dmp

Filesize
7.7MB

Download
memory/232-26-0x00000000743D0000-0x0000000074B81000-memory.dmp

Filesize
7.7MB

Download
memory/1824-15-0x00000000743DE000-0x00000000743DF000-memory.dmp

Filesize
4KB

Download
memory/1824-3-0x0000000005290000-0x0000000005322000-memory.dmp

Filesize
584KB

Download
memory/1824-0-0x00000000743DE000-0x00000000743DF000-memory.dmp

Filesize
4KB

Download
memory/1824-6-0x0000000005230000-0x000000000523A000-memory.dmp

Filesize
40KB

Download
memory/1824-4-0x0000000005250000-0x000000000525A000-memory.dmp

Filesize
40KB

Download
memory/1824-16-0x00000000743D0000-0x0000000074B81000-memory.dmp

Filesize
7.7MB

Download
memory/1824-2-0x0000000005990000-0x0000000005F36000-memory.dmp

Filesize
5.6MB

Download
memory/1824-22-0x00000000743D0000-0x0000000074B81000-memory.dmp

Filesize
7.7MB

Download
memory/1824-5-0x00000000743D0000-0x0000000074B81000-memory.dmp

Filesize
7.7MB

Download
memory/1824-1-0x0000000000890000-0x00000000008D6000-memory.dmp

Filesize
280KB

Download
memory/4244-24-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/6008-21-0x00000000743D0000-0x0000000074B81000-memory.dmp

Filesize
7.7MB

Download
memory/6008-29-0x00000000743D0000-0x0000000074B81000-memory.dmp

Filesize
7.7MB

Download