asyncrat | 4780ad66fe081922301a8a90ca01d2e30c6bd5cfcfbe3d768773e8cf86e864df

General

Target

net5.exe
Size

766KB
MD5

c094c57d960c5db1a798911c59cb9c91
SHA1

daa83187c52c8fd8349e2525cc0754ccdc023fd0
SHA256

4780ad66fe081922301a8a90ca01d2e30c6bd5cfcfbe3d768773e8cf86e864df
SHA512

c11437aa95c3588cca5cb6da12fb7a46b3c01b408d8673174f1df85e5bc29471d303adc997cd873d80045765a38c75daa0fc94217f6a25003cbbc160ea5a6f3b

Score

10^/10

asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7A

C2

mysubdomain873.duckdns.org:600

Mutex

AsyncMutex_6SI8OkPnk

Attributes

aes_key
6ARSUbK1J7i0ZiDwHtKhtGLRoDs9BiV3
anti_detection
false
autorun
false
bdos
false
delay
Default
host
mysubdomain873.duckdns.org
hwid
1
install_file
install_folder
%AppData%
mutex
AsyncMutex_6SI8OkPnk
pastebin_config
null
port
600
version
0.5.7A

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/1736-116-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral2/memory/1736-117-0x000000000040C74E-mapping.dmp	asyncrat

Suspicious use of SetThreadContext 1 IoCs

Processes:

net5.exe

description pid process target process

PID 4016 set thread context of 1736 4016 net5.exe RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1736 RegSvcs.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

net5.exe

pid process

4016 net5.exe

description	pid	process	target process
PID 4016 set thread context of 1736	4016	net5.exe	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1736	RegSvcs.exe

pid	process
4016	net5.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

net5.exe

description	pid	process	target process
PID 4016 wrote to memory of 1736	4016	net5.exe	RegSvcs.exe
PID 4016 wrote to memory of 1736	4016	net5.exe	RegSvcs.exe
PID 4016 wrote to memory of 1736	4016	net5.exe	RegSvcs.exe
PID 4016 wrote to memory of 1736	4016	net5.exe	RegSvcs.exe
PID 4016 wrote to memory of 1736	4016	net5.exe	RegSvcs.exe
PID 4016 wrote to memory of 1736	4016	net5.exe	RegSvcs.exe
PID 4016 wrote to memory of 1736	4016	net5.exe	RegSvcs.exe
PID 4016 wrote to memory of 1736	4016	net5.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\net5.exe
"C:\Users\Admin\AppData\Local\Temp\net5.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4016

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1736

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1736-116-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1736-117-0x000000000040C74E-mapping.dmp

Download
memory/1736-120-0x0000000005170000-0x0000000005171000-memory.dmp

Filesize
4KB

Download
memory/1736-121-0x0000000005AD0000-0x0000000005AD1000-memory.dmp

Filesize
4KB

Download
memory/1736-122-0x0000000006070000-0x0000000006071000-memory.dmp

Filesize
4KB

Download
memory/1736-123-0x0000000005BE0000-0x0000000005BE1000-memory.dmp

Filesize
4KB

Download
memory/1736-124-0x0000000006B30000-0x0000000006B31000-memory.dmp

Filesize
4KB

Download
memory/1736-125-0x0000000006AB0000-0x0000000006B29000-memory.dmp

Filesize
484KB

Download
memory/1736-126-0x0000000006C10000-0x0000000006C11000-memory.dmp

Filesize
4KB

Download
memory/1736-127-0x0000000006D10000-0x0000000006D11000-memory.dmp

Filesize
4KB

Download
memory/1736-128-0x0000000006C80000-0x0000000006C84000-memory.dmp

Filesize
16KB

Download
memory/1736-129-0x00000000070D0000-0x000000000715D000-memory.dmp

Filesize
564KB

Download
memory/1736-130-0x0000000007260000-0x00000000072B9000-memory.dmp

Filesize
356KB

Download
memory/1736-131-0x00000000072C0000-0x00000000072C1000-memory.dmp

Filesize
4KB

Download

Analysis

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