asyncrat | ae60268e3dae5ed2ecb06c47642bb33cd4f79d0b980476f1a7c931e2a4ba32ca

Analysis

max time kernel
90s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
15-12-2022 06:12

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General

Target

office.ps1
Size

172KB
MD5

40113b90033a17620cfab836e01c208e
SHA1

8b752278316f5af828ddf23f62d4b6d6c0591e6e
SHA256

ae60268e3dae5ed2ecb06c47642bb33cd4f79d0b980476f1a7c931e2a4ba32ca
SHA512

83d55d3e4c898b35879774a7ec469bfb33598ad0adec08012cedef170fc32515bd2d0378d4ffb658ca5eaa95187b65c46b7645a233990aae4c971e5e2bf95e5e
SSDEEP

1536:DYrP7b2WPgkSqZkjEHcFJXiKTClpXcclUXdCXxEbr7IlWMQvVhB8LCZsHXGwrAfO:D30

Score

10^/10

asyncrat 99 rat

Malware Config

Extracted

Family

asyncrat

Version

| Edit 3LOSH RAT

Botnet

d1x3x.linkpc.net:6666

d1x3x.dyndns.org:6666

d1x3x.selfip.biz:6666

Mutex

AsyncMutex_Devil

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
behavioral3/memory/3448-134-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat
behavioral3/memory/3448-135-0x0000000000410BCE-mapping.dmp	asyncrat

Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 4824 set thread context of 3448 4824 powershell.exe aspnet_compiler.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

aspnet_compiler.exe

pid process

3448 aspnet_compiler.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exeaspnet_compiler.exe

pid process

4824 powershell.exe
4824 powershell.exe
3448 aspnet_compiler.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeaspnet_compiler.exe

description pid process

Token: SeDebugPrivilege 4824 powershell.exe
Token: SeDebugPrivilege 3448 aspnet_compiler.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

aspnet_compiler.exe

pid process

3448 aspnet_compiler.exe

description	pid	process	target process
PID 4824 set thread context of 3448	4824	powershell.exe	aspnet_compiler.exe

pid	process
3448	aspnet_compiler.exe

pid	process
4824	powershell.exe
4824	powershell.exe
3448	aspnet_compiler.exe

description	pid	process
Token: SeDebugPrivilege	4824	powershell.exe
Token: SeDebugPrivilege	3448	aspnet_compiler.exe

pid	process
3448	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

powershell.exe

description	pid	process	target process
PID 4824 wrote to memory of 3448	4824	powershell.exe	aspnet_compiler.exe
PID 4824 wrote to memory of 3448	4824	powershell.exe	aspnet_compiler.exe
PID 4824 wrote to memory of 3448	4824	powershell.exe	aspnet_compiler.exe
PID 4824 wrote to memory of 3448	4824	powershell.exe	aspnet_compiler.exe
PID 4824 wrote to memory of 3448	4824	powershell.exe	aspnet_compiler.exe
PID 4824 wrote to memory of 3448	4824	powershell.exe	aspnet_compiler.exe
PID 4824 wrote to memory of 3448	4824	powershell.exe	aspnet_compiler.exe
PID 4824 wrote to memory of 3448	4824	powershell.exe	aspnet_compiler.exe

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\office.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4824

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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3448

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/3448-134-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3448-135-0x0000000000410BCE-mapping.dmp

Download
memory/3448-137-0x0000000006570000-0x0000000006B14000-memory.dmp

Filesize
5.6MB

Download
memory/3448-138-0x00000000060A0000-0x0000000006132000-memory.dmp

Filesize
584KB

Download
memory/3448-139-0x0000000006060000-0x000000000606A000-memory.dmp

Filesize
40KB

Download
memory/3448-140-0x0000000007B30000-0x0000000007BCC000-memory.dmp

Filesize
624KB

Download
memory/3448-141-0x0000000007BD0000-0x0000000007C36000-memory.dmp

Filesize
408KB

Download
memory/3448-142-0x0000000008740000-0x00000000087B6000-memory.dmp

Filesize
472KB

Download
memory/3448-143-0x00000000087E0000-0x00000000087FE000-memory.dmp

Filesize
120KB

Download
memory/4824-132-0x0000026EF36F0000-0x0000026EF3712000-memory.dmp

Filesize
136KB

Download
memory/4824-133-0x00007FFD8C790000-0x00007FFD8D251000-memory.dmp

Filesize
10.8MB

Download
memory/4824-136-0x00007FFD8C790000-0x00007FFD8D251000-memory.dmp

Filesize
10.8MB

Download