asyncrat | 40c0d2006ca35701294a9450cb8d44b0bf7f0e4363641bb890a84e5d89094183

Analysis

max time kernel
197s
max time network
209s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2022 21:02

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General

Target

40c0d2006ca35701294a9450cb8d44b0bf7f0e4363641bb890a84e5d89094183.ps1
Size

345KB
MD5

6f015e02b96b417ce0b84d76b6cb8353
SHA1

9596f8545e2c1a30a0b03931b4ff7e5bbb0e8161
SHA256

40c0d2006ca35701294a9450cb8d44b0bf7f0e4363641bb890a84e5d89094183
SHA512

bbe33d286a98597c0fb88dff7b9d29acfd7e3b44c3c2a4d1e41b9ba657b5870e8d344d651d47a00650efa3b3bce9e51980dcd0e521668add57942f208a84ce2b
SSDEEP

6144:J0EVR64eKCEIqQWVUBFJHFe933XjSuSTIoHv+JUB+b8jDQocIH/X:J0EVRpeKCEIqQWVUBFJHFe93ujTIoHvt

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

| Edit 3LOSH RAT

Botnet

Default

185.81.157.19:6666

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.
rat asyncrat

Async RAT payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/5072-135-0x0000000000400000-0x0000000000414000-memory.dmp	asyncrat
behavioral2/memory/5072-136-0x000000000040E18E-mapping.dmp	asyncrat

Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 4180 set thread context of 5072 4180 powershell.exe aspnet_compiler.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

powershell.exe

pid process

4180 powershell.exe
4180 powershell.exe
4180 powershell.exe
4180 powershell.exe
4180 powershell.exe
4180 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 4180 powershell.exe

description	pid	process	target process
PID 4180 set thread context of 5072	4180	powershell.exe	aspnet_compiler.exe

pid	process
4180	powershell.exe
4180	powershell.exe
4180	powershell.exe
4180	powershell.exe
4180	powershell.exe
4180	powershell.exe

description	pid	process
Token: SeDebugPrivilege	4180	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

powershell.exe

description	pid	process	target process
PID 4180 wrote to memory of 2028	4180	powershell.exe	aspnet_compiler.exe
PID 4180 wrote to memory of 2028	4180	powershell.exe	aspnet_compiler.exe
PID 4180 wrote to memory of 2028	4180	powershell.exe	aspnet_compiler.exe
PID 4180 wrote to memory of 4920	4180	powershell.exe	aspnet_compiler.exe
PID 4180 wrote to memory of 4920	4180	powershell.exe	aspnet_compiler.exe
PID 4180 wrote to memory of 4920	4180	powershell.exe	aspnet_compiler.exe
PID 4180 wrote to memory of 5072	4180	powershell.exe	aspnet_compiler.exe
PID 4180 wrote to memory of 5072	4180	powershell.exe	aspnet_compiler.exe
PID 4180 wrote to memory of 5072	4180	powershell.exe	aspnet_compiler.exe
PID 4180 wrote to memory of 5072	4180	powershell.exe	aspnet_compiler.exe
PID 4180 wrote to memory of 5072	4180	powershell.exe	aspnet_compiler.exe
PID 4180 wrote to memory of 5072	4180	powershell.exe	aspnet_compiler.exe
PID 4180 wrote to memory of 5072	4180	powershell.exe	aspnet_compiler.exe
PID 4180 wrote to memory of 5072	4180	powershell.exe	aspnet_compiler.exe

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\40c0d2006ca35701294a9450cb8d44b0bf7f0e4363641bb890a84e5d89094183.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4180

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
2⤵
PID:2028

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
2⤵
PID:4920

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
2⤵
PID:5072

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/4180-132-0x000001F1FEB20000-0x000001F1FEB42000-memory.dmp

Filesize
136KB

Download
memory/4180-133-0x00007FF9D3CD0000-0x00007FF9D4791000-memory.dmp

Filesize
10.8MB

Download
memory/4180-134-0x00007FF9D3CD0000-0x00007FF9D4791000-memory.dmp

Filesize
10.8MB

Download
memory/4180-137-0x00007FF9D3CD0000-0x00007FF9D4791000-memory.dmp

Filesize
10.8MB

Download
memory/5072-135-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5072-136-0x000000000040E18E-mapping.dmp

Download