asyncrat | 5d319c98b3450e3d1390dc83c014fcbce7066739e3975d352482ba254fb7b1ec

Analysis

max time kernel
108s
max time network
116s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08/11/2024, 11:47

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General

Target

5d319c98b3450e3d1390dc83c014fcbce7066739e3975d352482ba254fb7b1ecN.exe
Size

90KB
MD5

e8574afef756029ea7fed58b6f0a6af0
SHA1

bd7ae7551050e5edad87120f71acbfcabb7fc21b
SHA256

5d319c98b3450e3d1390dc83c014fcbce7066739e3975d352482ba254fb7b1ec
SHA512

6471d7051d9b18b326360cc02d97be571f76f9885da6dc8bac73005538a461ca1ff0407e8cf8282609e45ef1b9aa6d70fcd41cad3d802238694893a3fcec47b0
SSDEEP

1536:LMb0P+Y32nYwt3rRlc3uXSBRDO43tyVmXhfP:LMbbnYwt3rv4O43tyVmXhn

Score

10^/10

asyncrat 3 discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

136.244.81.197:8548

Mutex

Wy1CfSpKZBlc

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4668 set thread context of 3912	4668	5d319c98b3450e3d1390dc83c014fcbce7066739e3975d352482ba254fb7b1ecN.exe	84

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5d319c98b3450e3d1390dc83c014fcbce7066739e3975d352482ba254fb7b1ecN.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4668 wrote to memory of 3912	4668	5d319c98b3450e3d1390dc83c014fcbce7066739e3975d352482ba254fb7b1ecN.exe	84
PID 4668 wrote to memory of 3912	4668	5d319c98b3450e3d1390dc83c014fcbce7066739e3975d352482ba254fb7b1ecN.exe	84
PID 4668 wrote to memory of 3912	4668	5d319c98b3450e3d1390dc83c014fcbce7066739e3975d352482ba254fb7b1ecN.exe	84
PID 4668 wrote to memory of 3912	4668	5d319c98b3450e3d1390dc83c014fcbce7066739e3975d352482ba254fb7b1ecN.exe	84
PID 4668 wrote to memory of 3912	4668	5d319c98b3450e3d1390dc83c014fcbce7066739e3975d352482ba254fb7b1ecN.exe	84
PID 4668 wrote to memory of 3912	4668	5d319c98b3450e3d1390dc83c014fcbce7066739e3975d352482ba254fb7b1ecN.exe	84
PID 4668 wrote to memory of 3912	4668	5d319c98b3450e3d1390dc83c014fcbce7066739e3975d352482ba254fb7b1ecN.exe	84
PID 4668 wrote to memory of 3912	4668	5d319c98b3450e3d1390dc83c014fcbce7066739e3975d352482ba254fb7b1ecN.exe	84

C:\Users\Admin\AppData\Local\Temp\5d319c98b3450e3d1390dc83c014fcbce7066739e3975d352482ba254fb7b1ecN.exe
"C:\Users\Admin\AppData\Local\Temp\5d319c98b3450e3d1390dc83c014fcbce7066739e3975d352482ba254fb7b1ecN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4668
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  #system32
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3912

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3912-2-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3912-5-0x0000000075370000-0x0000000075B20000-memory.dmp

Filesize
7.7MB

Download
memory/3912-6-0x0000000075370000-0x0000000075B20000-memory.dmp

Filesize
7.7MB

Download
memory/3912-8-0x0000000075370000-0x0000000075B20000-memory.dmp

Filesize
7.7MB

Download
memory/4668-0-0x000000007537E000-0x000000007537F000-memory.dmp

Filesize
4KB

Download
memory/4668-1-0x0000000000060000-0x000000000007C000-memory.dmp

Filesize
112KB

Download
memory/4668-4-0x0000000075370000-0x0000000075B20000-memory.dmp

Filesize
7.7MB

Download
memory/4668-7-0x0000000075370000-0x0000000075B20000-memory.dmp

Filesize
7.7MB

Download