asyncrat | ae60268e3dae5ed2ecb06c47642bb33cd4f79d0b980476f1a7c931e2a4ba32ca

Analysis

max time kernel
61s
max time network
146s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-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 7 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2036-62-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat
behavioral2/memory/2036-63-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat
behavioral2/memory/2036-61-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat
behavioral2/memory/2036-64-0x0000000000410BCE-mapping.dmp	asyncrat
behavioral2/memory/2036-70-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat
behavioral2/memory/2036-68-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat
behavioral2/memory/2036-72-0x00000000006A0000-0x00000000006C4000-memory.dmp	asyncrat

Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 1336 set thread context of 2036 1336 powershell.exe aspnet_compiler.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

aspnet_compiler.exe

pid process

2036 aspnet_compiler.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exeaspnet_compiler.exe

pid process

1336 powershell.exe
2036 aspnet_compiler.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeaspnet_compiler.exe

description pid process

Token: SeDebugPrivilege 1336 powershell.exe
Token: SeDebugPrivilege 2036 aspnet_compiler.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

aspnet_compiler.exe

pid process

2036 aspnet_compiler.exe

description	pid	process	target process
PID 1336 set thread context of 2036	1336	powershell.exe	aspnet_compiler.exe

pid	process
2036	aspnet_compiler.exe

pid	process
1336	powershell.exe
2036	aspnet_compiler.exe

description	pid	process
Token: SeDebugPrivilege	1336	powershell.exe
Token: SeDebugPrivilege	2036	aspnet_compiler.exe

pid	process
2036	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

powershell.exe

description	pid	process	target process
PID 1336 wrote to memory of 2036	1336	powershell.exe	aspnet_compiler.exe
PID 1336 wrote to memory of 2036	1336	powershell.exe	aspnet_compiler.exe
PID 1336 wrote to memory of 2036	1336	powershell.exe	aspnet_compiler.exe
PID 1336 wrote to memory of 2036	1336	powershell.exe	aspnet_compiler.exe
PID 1336 wrote to memory of 2036	1336	powershell.exe	aspnet_compiler.exe
PID 1336 wrote to memory of 2036	1336	powershell.exe	aspnet_compiler.exe
PID 1336 wrote to memory of 2036	1336	powershell.exe	aspnet_compiler.exe
PID 1336 wrote to memory of 2036	1336	powershell.exe	aspnet_compiler.exe
PID 1336 wrote to memory of 2036	1336	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:1336

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:2036

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1336-66-0x00000000027B4000-0x00000000027B7000-memory.dmp

Filesize
12KB

Download
memory/1336-56-0x000007FEF3550000-0x000007FEF40AD000-memory.dmp

Filesize
11.4MB

Download
memory/1336-57-0x00000000027B4000-0x00000000027B7000-memory.dmp

Filesize
12KB

Download
memory/1336-54-0x000007FEFB9A1000-0x000007FEFB9A3000-memory.dmp

Filesize
8KB

Download
memory/1336-67-0x00000000027BB000-0x00000000027DA000-memory.dmp

Filesize
124KB

Download
memory/2036-62-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2036-59-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2036-64-0x0000000000410BCE-mapping.dmp

Download
memory/2036-58-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2036-61-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2036-63-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2036-70-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2036-68-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2036-71-0x0000000075E81000-0x0000000075E83000-memory.dmp

Filesize
8KB

Download
memory/2036-72-0x00000000006A0000-0x00000000006C4000-memory.dmp

Filesize
144KB

Download