asyncrat | 4e75cb29be96283f4f05a840c4ed6ff23ed3ff24fcf32af2845a5b187261439d

General

Target

33dad047fbc03f81e8a9e63d99a7efe4.exe
Size

502KB
MD5

33dad047fbc03f81e8a9e63d99a7efe4
SHA1

6f3ae296412b498835b5ab3e9318062f9c7d7f2f
SHA256

4e75cb29be96283f4f05a840c4ed6ff23ed3ff24fcf32af2845a5b187261439d
SHA512

9b6237231d97b8b3988c0831cf91c74f1c52f2741c319076200159a3bf5db13a4ba0e977c0c45c5df25b5608470c3d482fce36951ab29d4103b4c6441b98e4e6

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

10.14.204.30:2022

10.14.204.30:2019

10.14.204.30:5631

Mutex

AsyncMutex_6SI8OkPnk

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 6 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1984-66-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1984-65-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1984-68-0x000000000040C71E-mapping.dmp	asyncrat
behavioral1/memory/1984-67-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1984-72-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1984-70-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Suspicious use of SetThreadContext 1 IoCs

Processes:

33dad047fbc03f81e8a9e63d99a7efe4.exe

description pid process target process

PID 1052 set thread context of 1984 1052 33dad047fbc03f81e8a9e63d99a7efe4.exe 33dad047fbc03f81e8a9e63d99a7efe4.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe33dad047fbc03f81e8a9e63d99a7efe4.exe

pid process

328 powershell.exe
1052 33dad047fbc03f81e8a9e63d99a7efe4.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exe33dad047fbc03f81e8a9e63d99a7efe4.exe

description pid process

Token: SeDebugPrivilege 328 powershell.exe
Token: SeDebugPrivilege 1052 33dad047fbc03f81e8a9e63d99a7efe4.exe

description	pid	process	target process
PID 1052 set thread context of 1984	1052	33dad047fbc03f81e8a9e63d99a7efe4.exe	33dad047fbc03f81e8a9e63d99a7efe4.exe

pid	process
328	powershell.exe
1052	33dad047fbc03f81e8a9e63d99a7efe4.exe

description	pid	process
Token: SeDebugPrivilege	328	powershell.exe
Token: SeDebugPrivilege	1052	33dad047fbc03f81e8a9e63d99a7efe4.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

33dad047fbc03f81e8a9e63d99a7efe4.exe

C:\Users\Admin\AppData\Local\Temp\33dad047fbc03f81e8a9e63d99a7efe4.exe
"C:\Users\Admin\AppData\Local\Temp\33dad047fbc03f81e8a9e63d99a7efe4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1052

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:328

C:\Users\Admin\AppData\Local\Temp\33dad047fbc03f81e8a9e63d99a7efe4.exe
C:\Users\Admin\AppData\Local\Temp\33dad047fbc03f81e8a9e63d99a7efe4.exe
2⤵
PID:1984

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/328-58-0x0000000000000000-mapping.dmp

Download
memory/328-61-0x0000000070DC0000-0x000000007136B000-memory.dmp

Filesize
5.7MB

Download
memory/328-60-0x0000000070DC0000-0x000000007136B000-memory.dmp

Filesize
5.7MB

Download
memory/1052-57-0x0000000076C81000-0x0000000076C83000-memory.dmp

Filesize
8KB

Download
memory/1052-54-0x00000000010B0000-0x0000000001134000-memory.dmp

Filesize
528KB

Download
memory/1052-56-0x0000000000D80000-0x0000000000DCC000-memory.dmp

Filesize
304KB

Download
memory/1052-55-0x0000000000B60000-0x0000000000BEA000-memory.dmp

Filesize
552KB

Download
memory/1984-62-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1984-66-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1984-65-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1984-63-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1984-68-0x000000000040C71E-mapping.dmp

Download
memory/1984-67-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1984-72-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1984-70-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

description	pid	process	target process
PID 1052 wrote to memory of 328	1052	33dad047fbc03f81e8a9e63d99a7efe4.exe	powershell.exe
PID 1052 wrote to memory of 328	1052	33dad047fbc03f81e8a9e63d99a7efe4.exe	powershell.exe
PID 1052 wrote to memory of 328	1052	33dad047fbc03f81e8a9e63d99a7efe4.exe	powershell.exe
PID 1052 wrote to memory of 328	1052	33dad047fbc03f81e8a9e63d99a7efe4.exe	powershell.exe
PID 1052 wrote to memory of 1984	1052	33dad047fbc03f81e8a9e63d99a7efe4.exe	33dad047fbc03f81e8a9e63d99a7efe4.exe
PID 1052 wrote to memory of 1984	1052	33dad047fbc03f81e8a9e63d99a7efe4.exe	33dad047fbc03f81e8a9e63d99a7efe4.exe
PID 1052 wrote to memory of 1984	1052	33dad047fbc03f81e8a9e63d99a7efe4.exe	33dad047fbc03f81e8a9e63d99a7efe4.exe
PID 1052 wrote to memory of 1984	1052	33dad047fbc03f81e8a9e63d99a7efe4.exe	33dad047fbc03f81e8a9e63d99a7efe4.exe
PID 1052 wrote to memory of 1984	1052	33dad047fbc03f81e8a9e63d99a7efe4.exe	33dad047fbc03f81e8a9e63d99a7efe4.exe
PID 1052 wrote to memory of 1984	1052	33dad047fbc03f81e8a9e63d99a7efe4.exe	33dad047fbc03f81e8a9e63d99a7efe4.exe
PID 1052 wrote to memory of 1984	1052	33dad047fbc03f81e8a9e63d99a7efe4.exe	33dad047fbc03f81e8a9e63d99a7efe4.exe
PID 1052 wrote to memory of 1984	1052	33dad047fbc03f81e8a9e63d99a7efe4.exe	33dad047fbc03f81e8a9e63d99a7efe4.exe
PID 1052 wrote to memory of 1984	1052	33dad047fbc03f81e8a9e63d99a7efe4.exe	33dad047fbc03f81e8a9e63d99a7efe4.exe
PID 1052 wrote to memory of 1984	1052	33dad047fbc03f81e8a9e63d99a7efe4.exe	33dad047fbc03f81e8a9e63d99a7efe4.exe
PID 1052 wrote to memory of 1984	1052	33dad047fbc03f81e8a9e63d99a7efe4.exe	33dad047fbc03f81e8a9e63d99a7efe4.exe
PID 1052 wrote to memory of 1984	1052	33dad047fbc03f81e8a9e63d99a7efe4.exe	33dad047fbc03f81e8a9e63d99a7efe4.exe

Analysis

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