asyncrat | 6f35ab9d6aed8b8df1754149da79be5cdadae7b5366e8f2be46d9370f7e920c0

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
26-03-2024 19:04

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General

Target

Server_lol_123.ps1
Size

762KB
MD5

1ef210e44c2f164c6b788b900ac4ce32
SHA1

f56f4937589a59358064d6130f40da9347c5f74f
SHA256

7b8a03c6807998387600ac79caf1ce7838d4313419965328191ba66635fa4e37
SHA512

7b0a09b0e6d3ebb4b1aff182f046c3abfd9da1ea9a4c0d4de0a73ffad0e8ce44cccb73e05f74aa933bc41292c870c3ec86a647953e3de31df01691d99cb98adb
SSDEEP

6144:ZWG30D0btNi7GUMC0a4dqWzYnx6fLRNmgvlFw9GMC68jDnyZT1JUOCN3N4mGNY/r:LZtnNqOM3zZtnNqOg

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

103.149.13.196:8621

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Suspicious use of SetThreadContext 2 IoCs

Processes:

powershell.exe

description	pid	process	target process
PID 2452 set thread context of 4440	2452	powershell.exe	aspnet_compiler.exe
PID 2452 set thread context of 4216	2452	powershell.exe	aspnet_compiler.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

aspnet_compiler.exe

pid process

4216 aspnet_compiler.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

2452 powershell.exe
2452 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2452 powershell.exe

pid	process
4216	aspnet_compiler.exe

pid	process
2452	powershell.exe
2452	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2452	powershell.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

powershell.exe

description	pid	process	target process
PID 2452 wrote to memory of 4440	2452	powershell.exe	aspnet_compiler.exe
PID 2452 wrote to memory of 4440	2452	powershell.exe	aspnet_compiler.exe
PID 2452 wrote to memory of 4440	2452	powershell.exe	aspnet_compiler.exe
PID 2452 wrote to memory of 4440	2452	powershell.exe	aspnet_compiler.exe
PID 2452 wrote to memory of 4440	2452	powershell.exe	aspnet_compiler.exe
PID 2452 wrote to memory of 4440	2452	powershell.exe	aspnet_compiler.exe
PID 2452 wrote to memory of 4440	2452	powershell.exe	aspnet_compiler.exe
PID 2452 wrote to memory of 4440	2452	powershell.exe	aspnet_compiler.exe
PID 2452 wrote to memory of 4216	2452	powershell.exe	aspnet_compiler.exe
PID 2452 wrote to memory of 4216	2452	powershell.exe	aspnet_compiler.exe
PID 2452 wrote to memory of 4216	2452	powershell.exe	aspnet_compiler.exe
PID 2452 wrote to memory of 4216	2452	powershell.exe	aspnet_compiler.exe
PID 2452 wrote to memory of 4216	2452	powershell.exe	aspnet_compiler.exe
PID 2452 wrote to memory of 4216	2452	powershell.exe	aspnet_compiler.exe
PID 2452 wrote to memory of 4216	2452	powershell.exe	aspnet_compiler.exe
PID 2452 wrote to memory of 4216	2452	powershell.exe	aspnet_compiler.exe

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\Server_lol_123.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2452

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
2⤵
PID:4440

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
2⤵
- Suspicious behavior: AddClipboardFormatListener
PID:4216

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2b3o5dvv.l0y.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2452-61-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-31-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-11-0x000002551A8A0000-0x000002551A8B0000-memory.dmp

Filesize
64KB

Download
memory/2452-12-0x000002551A8A0000-0x000002551A8B0000-memory.dmp

Filesize
64KB

Download
memory/2452-13-0x000002551AE20000-0x000002551AE50000-memory.dmp

Filesize
192KB

Download
memory/2452-17-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-19-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-15-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-21-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-14-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-23-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-29-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-33-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-35-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-37-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-43-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-49-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-69-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-67-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-65-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-63-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-77-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-71-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-73-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-119-0x000002551A8A0000-0x000002551A8B0000-memory.dmp

Filesize
64KB

Download
memory/2452-118-0x000002551A7E0000-0x000002551A7E1000-memory.dmp

Filesize
4KB

Download
memory/2452-75-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-7-0x000002551A7F0000-0x000002551A812000-memory.dmp

Filesize
136KB

Download
memory/2452-10-0x00007FFA8BA20000-0x00007FFA8C4E1000-memory.dmp

Filesize
10.8MB

Download
memory/2452-57-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-55-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-53-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-51-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-47-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-45-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-41-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-39-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-59-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-27-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-25-0x000002551AE20000-0x000002551AE4A000-memory.dmp

Filesize
168KB

Download
memory/2452-228-0x000002551A840000-0x000002551A841000-memory.dmp

Filesize
4KB

Download
memory/2452-233-0x00007FFA8BA20000-0x00007FFA8C4E1000-memory.dmp

Filesize
10.8MB

Download
memory/4216-237-0x0000000005210000-0x00000000052A2000-memory.dmp

Filesize
584KB

Download
memory/4216-232-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/4216-234-0x00000000749E0000-0x0000000075190000-memory.dmp

Filesize
7.7MB

Download
memory/4216-235-0x0000000005160000-0x0000000005170000-memory.dmp

Filesize
64KB

Download
memory/4216-236-0x0000000005720000-0x0000000005CC4000-memory.dmp

Filesize
5.6MB

Download
memory/4216-238-0x00000000053B0000-0x00000000053BA000-memory.dmp

Filesize
40KB

Download
memory/4216-241-0x00000000749E0000-0x0000000075190000-memory.dmp

Filesize
7.7MB

Download
memory/4216-242-0x0000000005160000-0x0000000005170000-memory.dmp

Filesize
64KB

Download
memory/4440-121-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4440-239-0x00000000749E0000-0x0000000075190000-memory.dmp

Filesize
7.7MB

Download
memory/4440-123-0x00000000052C0000-0x00000000052D0000-memory.dmp

Filesize
64KB

Download
memory/4440-122-0x00000000749E0000-0x0000000075190000-memory.dmp

Filesize
7.7MB

Download
memory/4440-240-0x00000000052C0000-0x00000000052D0000-memory.dmp

Filesize
64KB

Download