asyncrat | f0e5b0472df1921c5b9c32c0dc4c1a3a2cc15084b72df00fe2710f63221ee224

Analysis

max time kernel
141s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
16-03-2024 03:37

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General

Target

loader.ps1
Size

14.0MB
MD5

fe51ec3ec4510262ca50af133b5cef93
SHA1

aba6d26dcfb1fa6c991b2486fc7cda8165b61551
SHA256

1877e4bab37f755a1c74d6e03319da7b42b07a45be4da1205609d4e47aa16e7c
SHA512

149ee9151f9d94c4fa9308de3b81b3f0a13fa2991c1bbf74e48b85f695d2ef3ef7ba1f39f91ef2619c40f6d0a0dc8f25d5452c538084e26d6301ec9273d15b96
SSDEEP

49152:5v8ClP0QiEwg/C5r6iNlqaZg21NY/TQX5I:

Score

10^/10

asyncrat venom clients rat

Malware Config

Extracted

Family

asyncrat

Version

5.0.5

Botnet

Venom Clients

kdfsv.duckdns.org:8890

Mutex

Venom_RAT_HVNC_Mutex_Venom RAT_HVNC

Attributes

delay
1
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 NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 1760 created 3296 1760 powershell.exe Explorer.EXE

description	pid	process	target process
PID 1760 created 3296	1760	powershell.exe	Explorer.EXE

Async RAT payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral8/memory/4384-18-0x0000018054760000-0x0000018054776000-memory.dmp	family_asyncrat
behavioral8/memory/4384-20-0x000001806D090000-0x000001806D0A0000-memory.dmp	family_asyncrat

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exe

pid process

1760 powershell.exe
1760 powershell.exe
1760 powershell.exe
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs

Processes:

powershell.exe

pid process

1760 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exenotepad.exe

description pid process

Token: SeDebugPrivilege 1760 powershell.exe
Token: SeDebugPrivilege 4384 notepad.exe

pid	process
1760	powershell.exe
1760	powershell.exe
1760	powershell.exe

pid	process
1760	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1760	powershell.exe
Token: SeDebugPrivilege	4384	notepad.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

powershell.exe

description	pid	process	target process
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe
PID 1760 wrote to memory of 4384	1760	powershell.exe	notepad.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3296

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\loader.ps1
2⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1760

C:\Windows\System32\notepad.exe
C:\Windows\System32\notepad.exe
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4384

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wrzenwuu.bml.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1760-25-0x00000221C0D00000-0x00000221C0D5B000-memory.dmp

Filesize
364KB

Download
memory/1760-13-0x00007FFA50E40000-0x00007FFA51901000-memory.dmp

Filesize
10.8MB

Download
memory/1760-9-0x00000221BE9E0000-0x00000221BEA02000-memory.dmp

Filesize
136KB

Download
memory/1760-24-0x00007FFA50E40000-0x00007FFA51901000-memory.dmp

Filesize
10.8MB

Download
memory/1760-12-0x00000221BEA40000-0x00000221BEA50000-memory.dmp

Filesize
64KB

Download
memory/1760-14-0x00000221BEA40000-0x00000221BEA50000-memory.dmp

Filesize
64KB

Download
memory/1760-15-0x00000221A6260000-0x00000221A62BB000-memory.dmp

Filesize
364KB

Download
memory/1760-16-0x00000221C0D00000-0x00000221C0D5B000-memory.dmp

Filesize
364KB

Download
memory/1760-10-0x00007FFA50E40000-0x00007FFA51901000-memory.dmp

Filesize
10.8MB

Download
memory/1760-11-0x00000221BEA40000-0x00000221BEA50000-memory.dmp

Filesize
64KB

Download
memory/4384-19-0x00007FFA50E40000-0x00007FFA51901000-memory.dmp

Filesize
10.8MB

Download
memory/4384-17-0x0000018052C10000-0x0000018052C26000-memory.dmp

Filesize
88KB

Download
memory/4384-21-0x000001806D090000-0x000001806D0A0000-memory.dmp

Filesize
64KB

Download
memory/4384-20-0x000001806D090000-0x000001806D0A0000-memory.dmp

Filesize
64KB

Download
memory/4384-18-0x0000018054760000-0x0000018054776000-memory.dmp

Filesize
88KB

Download
memory/4384-26-0x00007FFA6F090000-0x00007FFA6F285000-memory.dmp

Filesize
2.0MB

Download
memory/4384-29-0x00007FFA50E40000-0x00007FFA51901000-memory.dmp

Filesize
10.8MB

Download
memory/4384-30-0x000001806D090000-0x000001806D0A0000-memory.dmp

Filesize
64KB

Download
memory/4384-31-0x000001806D090000-0x000001806D0A0000-memory.dmp

Filesize
64KB

Download
memory/4384-32-0x000001806D090000-0x000001806D0A0000-memory.dmp

Filesize
64KB

Download
memory/4384-33-0x00007FFA6F090000-0x00007FFA6F285000-memory.dmp

Filesize
2.0MB

Download