asyncrat | 47023614c069481b374496cf0029af51d5aee78d64dbe7004e3f57765e59d8bd

General

Target

06032024_0208_update.ps1
Size

11.3MB
MD5

b89be2490ecdbe22d71420b68f77661a
SHA1

d06d705393b5bd798c3c7b814b31e8f301c57b47
SHA256

47023614c069481b374496cf0029af51d5aee78d64dbe7004e3f57765e59d8bd
SHA512

bcc51f0f04e947582df60f49c75d6f3192adee1606cc8d88c087d3570b90e05ec71b00640704a3d3996a259ea16e9cf415b1c1711f6708d960a07c6934e1d399
SSDEEP

49152:PvP+yQI3XU83yr6gWyZQUQL2lsocu53GMqTUXIPN4:g

Score

10^/10

asyncrat venom clients rat

Malware Config

Extracted

Family

asyncrat

Version

5.0.5

Botnet

Venom Clients

C2

vrnmmondays.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 4428 created 3352 4428 powershell.exe Explorer.EXE

description	pid	process	target process
PID 4428 created 3352	4428	powershell.exe	Explorer.EXE

Async RAT payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/1576-19-0x000001B49AE10000-0x000001B49AE26000-memory.dmp	family_asyncrat
behavioral2/memory/1576-21-0x000001B4B37C0000-0x000001B4B37D0000-memory.dmp	family_asyncrat

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exe

pid process

4428 powershell.exe
4428 powershell.exe
4428 powershell.exe
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs

Processes:

powershell.exe

pid process

4428 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exenotepad.exe

description pid process

Token: SeDebugPrivilege 4428 powershell.exe
Token: SeDebugPrivilege 1576 notepad.exe

pid	process
4428	powershell.exe
4428	powershell.exe
4428	powershell.exe

pid	process
4428	powershell.exe

description	pid	process
Token: SeDebugPrivilege	4428	powershell.exe
Token: SeDebugPrivilege	1576	notepad.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

powershell.exe

description	pid	process	target process
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe
PID 4428 wrote to memory of 1576	4428	powershell.exe	notepad.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3352

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\06032024_0208_update.ps1
2⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4428

C:\Windows\System32\notepad.exe
C:\Windows\System32\notepad.exe
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1576

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sxgjo4d1.y4o.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1576-25-0x00007FFCC1130000-0x00007FFCC1BF1000-memory.dmp

Filesize
10.8MB

Download
memory/1576-29-0x00007FFCDF450000-0x00007FFCDF645000-memory.dmp

Filesize
2.0MB

Download
memory/1576-20-0x00007FFCC1130000-0x00007FFCC1BF1000-memory.dmp

Filesize
10.8MB

Download
memory/1576-28-0x000001B4B37C0000-0x000001B4B37D0000-memory.dmp

Filesize
64KB

Download
memory/1576-27-0x000001B4B37C0000-0x000001B4B37D0000-memory.dmp

Filesize
64KB

Download
memory/1576-14-0x000001B4992C0000-0x000001B4992D6000-memory.dmp

Filesize
88KB

Download
memory/1576-26-0x000001B4B37C0000-0x000001B4B37D0000-memory.dmp

Filesize
64KB

Download
memory/1576-19-0x000001B49AE10000-0x000001B49AE26000-memory.dmp

Filesize
88KB

Download
memory/1576-24-0x00007FFCDF450000-0x00007FFCDF645000-memory.dmp

Filesize
2.0MB

Download
memory/1576-23-0x000001B4B37C0000-0x000001B4B37D0000-memory.dmp

Filesize
64KB

Download
memory/1576-22-0x000001B4B37C0000-0x000001B4B37D0000-memory.dmp

Filesize
64KB

Download
memory/1576-21-0x000001B4B37C0000-0x000001B4B37D0000-memory.dmp

Filesize
64KB

Download
memory/4428-10-0x00007FFCC1130000-0x00007FFCC1BF1000-memory.dmp

Filesize
10.8MB

Download
memory/4428-11-0x0000026778880000-0x0000026778890000-memory.dmp

Filesize
64KB

Download
memory/4428-0-0x0000026778840000-0x0000026778862000-memory.dmp

Filesize
136KB

Download
memory/4428-17-0x00007FFCC1130000-0x00007FFCC1BF1000-memory.dmp

Filesize
10.8MB

Download
memory/4428-13-0x000002677AB10000-0x000002677AB6B000-memory.dmp

Filesize
364KB

Download
memory/4428-12-0x0000026760210000-0x000002676026B000-memory.dmp

Filesize
364KB

Download
memory/4428-18-0x000002677AB10000-0x000002677AB6B000-memory.dmp

Filesize
364KB

Download

Analysis

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