asyncrat | 7ddbec7fac00ec5624f45da5879ebfa97d95b21c7842cbaa1058daa46a47bd41

Analysis

max time kernel
59s
max time network
22s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 19:52

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General

Target

c4c197e50214b25100e10fb00b2ac6e0.exe
Size

273KB
MD5

c4c197e50214b25100e10fb00b2ac6e0
SHA1

1dfac5794ccab5ec1e3c4897b8069c85e44bde19
SHA256

91b9c5ee1050b5ba75f7ad5e1daace80e64220fc71cb4cda0a2265b0559afa5f
SHA512

11d6fca3edc71affd5ae97743ae2e3a4ed8172f73e1f1a4d799baeb335a1f2a0219f652b2bc5d4d6a45144b936e047842579a50926813eacd9b9be1bfb8a2878
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sdTk:WFzDqa86hV6uRRqX1evPlwAEdA

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 5 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

resource	yara_rule
behavioral19/memory/2688-35-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral19/memory/2688-37-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral19/memory/2688-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral19/memory/2688-33-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral19/memory/2688-31-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
3020	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2304	c4c197e50214b25100e10fb00b2ac6e0.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	c4c197e50214b25100e10fb00b2ac6e0.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3020 set thread context of 2688	3020	HiPatchService.exe	35

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 4 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	c4c197e50214b25100e10fb00b2ac6e0.exe
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	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
3020	HiPatchService.exe
3020	HiPatchService.exe
2688	RegAsm.exe
2688	RegAsm.exe
2688	RegAsm.exe
2688	RegAsm.exe
2688	RegAsm.exe
2688	RegAsm.exe
2688	RegAsm.exe
2688	RegAsm.exe
2688	RegAsm.exe
2688	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3020	HiPatchService.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 3020	2304	c4c197e50214b25100e10fb00b2ac6e0.exe	31
PID 2304 wrote to memory of 3020	2304	c4c197e50214b25100e10fb00b2ac6e0.exe	31
PID 2304 wrote to memory of 3020	2304	c4c197e50214b25100e10fb00b2ac6e0.exe	31
PID 2304 wrote to memory of 3020	2304	c4c197e50214b25100e10fb00b2ac6e0.exe	31
PID 2304 wrote to memory of 3020	2304	c4c197e50214b25100e10fb00b2ac6e0.exe	31
PID 2304 wrote to memory of 3020	2304	c4c197e50214b25100e10fb00b2ac6e0.exe	31
PID 2304 wrote to memory of 3020	2304	c4c197e50214b25100e10fb00b2ac6e0.exe	31
PID 2304 wrote to memory of 1516	2304	c4c197e50214b25100e10fb00b2ac6e0.exe	32
PID 2304 wrote to memory of 1516	2304	c4c197e50214b25100e10fb00b2ac6e0.exe	32
PID 2304 wrote to memory of 1516	2304	c4c197e50214b25100e10fb00b2ac6e0.exe	32
PID 2304 wrote to memory of 1516	2304	c4c197e50214b25100e10fb00b2ac6e0.exe	32
PID 2304 wrote to memory of 1516	2304	c4c197e50214b25100e10fb00b2ac6e0.exe	32
PID 2304 wrote to memory of 1516	2304	c4c197e50214b25100e10fb00b2ac6e0.exe	32
PID 2304 wrote to memory of 1516	2304	c4c197e50214b25100e10fb00b2ac6e0.exe	32
PID 3020 wrote to memory of 2716	3020	HiPatchService.exe	34
PID 3020 wrote to memory of 2716	3020	HiPatchService.exe	34
PID 3020 wrote to memory of 2716	3020	HiPatchService.exe	34
PID 3020 wrote to memory of 2716	3020	HiPatchService.exe	34
PID 3020 wrote to memory of 2716	3020	HiPatchService.exe	34
PID 3020 wrote to memory of 2716	3020	HiPatchService.exe	34
PID 3020 wrote to memory of 2716	3020	HiPatchService.exe	34
PID 3020 wrote to memory of 2688	3020	HiPatchService.exe	35
PID 3020 wrote to memory of 2688	3020	HiPatchService.exe	35
PID 3020 wrote to memory of 2688	3020	HiPatchService.exe	35
PID 3020 wrote to memory of 2688	3020	HiPatchService.exe	35
PID 3020 wrote to memory of 2688	3020	HiPatchService.exe	35
PID 3020 wrote to memory of 2688	3020	HiPatchService.exe	35
PID 3020 wrote to memory of 2688	3020	HiPatchService.exe	35
PID 3020 wrote to memory of 2688	3020	HiPatchService.exe	35
PID 3020 wrote to memory of 2688	3020	HiPatchService.exe	35
PID 3020 wrote to memory of 2688	3020	HiPatchService.exe	35
PID 3020 wrote to memory of 2688	3020	HiPatchService.exe	35
PID 3020 wrote to memory of 2688	3020	HiPatchService.exe	35

C:\Users\Admin\AppData\Local\Temp\c4c197e50214b25100e10fb00b2ac6e0.exe
"C:\Users\Admin\AppData\Local\Temp\c4c197e50214b25100e10fb00b2ac6e0.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2304
- 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:3020
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:2716
- - 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
    - Suspicious behavior: EnumeratesProcesses
    PID:2688
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1516

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2572

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

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
\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe

Filesize
273KB

MD5
9a0b6cab34cc8c3fc65e1ca84639a850

SHA1
a07d9c97db0dadb2de7a9b95af9d78bc023b86ae

SHA256
e3614e77bc7881da4bf658720cea20bd581e24b88c5b83be25102d1ed5800701

SHA512
f383bd8c19102c12be580ec7c61199a86b65c08d2b707914068fac0e6ced0c1210a2d7d327f36d0b7f318141f9c665b95c77ab0c4ce6179aa924593b8765e262

Download Submit
memory/2304-25-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/2304-1-0x0000000000FA0000-0x0000000000FE6000-memory.dmp

Filesize
280KB

Download
memory/2304-2-0x0000000000290000-0x000000000029A000-memory.dmp

Filesize
40KB

Download
memory/2304-3-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/2304-21-0x00000000742AE000-0x00000000742AF000-memory.dmp

Filesize
4KB

Download
memory/2304-0-0x00000000742AE000-0x00000000742AF000-memory.dmp

Filesize
4KB

Download
memory/2688-35-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2688-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2688-26-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2688-37-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2688-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2688-33-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2688-31-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2688-28-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/3020-22-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/3020-23-0x0000000001000000-0x0000000001046000-memory.dmp

Filesize
280KB

Download
memory/3020-38-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download