asyncrat | a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd

Analysis

max time kernel
92s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-11-2024 20:01

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General

Target

a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe
Size

90KB
MD5

fa9a35aa46e8125410e19919c5007d1d
SHA1

fecb72b3eef590a364f2a5c8079d9dc8c8bbebd4
SHA256

a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd
SHA512

b809aabafc3112277c164b35a39b7641529cc27d74e608a408f72244f1c658274a208d56abccde964b1d9c5458f6e7bb367c38f04f984465c4fa57a6ef37fefd
SSDEEP

1536:UMDWyMQnnneVAefyEQmMj99uazMY2cCStPuShSdN20QylgNOmmWB+ByNfu6:UMDWypeVA+yE4hpMBcFwLdkRqgNOmmWD

Score

10^/10

asyncrat 3 discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

138.68.81.155:2301

Mutex

2W4KFQzXfKnZ

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 4464 set thread context of 4956	4464	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.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	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4464	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe
4464	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4464	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe
Token: SeDebugPrivilege	4956	RegAsm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4464 wrote to memory of 736	4464	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	83
PID 4464 wrote to memory of 736	4464	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	83
PID 4464 wrote to memory of 736	4464	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	83
PID 4464 wrote to memory of 4956	4464	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	84
PID 4464 wrote to memory of 4956	4464	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	84
PID 4464 wrote to memory of 4956	4464	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	84
PID 4464 wrote to memory of 4956	4464	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	84
PID 4464 wrote to memory of 4956	4464	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	84
PID 4464 wrote to memory of 4956	4464	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	84
PID 4464 wrote to memory of 4956	4464	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	84
PID 4464 wrote to memory of 4956	4464	a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe	84

C:\Users\Admin\AppData\Local\Temp\a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe
"C:\Users\Admin\AppData\Local\Temp\a180c575505893f3ff42b31bc0909b773f18515b72e4cbeb2b3fc72c48822acd.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4464
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  #system32
  2⤵
  PID:736
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  #system32
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4956

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/4464-0-0x00000000743CE000-0x00000000743CF000-memory.dmp

Filesize
4KB

Download
memory/4464-1-0x0000000000700000-0x000000000071C000-memory.dmp

Filesize
112KB

Download
memory/4464-2-0x00000000743C0000-0x0000000074B70000-memory.dmp

Filesize
7.7MB

Download
memory/4464-5-0x00000000743C0000-0x0000000074B70000-memory.dmp

Filesize
7.7MB

Download
memory/4956-3-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4956-6-0x00000000743C0000-0x0000000074B70000-memory.dmp

Filesize
7.7MB

Download
memory/4956-7-0x00000000743C0000-0x0000000074B70000-memory.dmp

Filesize
7.7MB

Download
memory/4956-10-0x0000000005F60000-0x0000000005FFC000-memory.dmp

Filesize
624KB

Download
memory/4956-11-0x00000000065B0000-0x0000000006B54000-memory.dmp

Filesize
5.6MB

Download
memory/4956-12-0x0000000006070000-0x00000000060D6000-memory.dmp

Filesize
408KB

Download
memory/4956-13-0x00000000743C0000-0x0000000074B70000-memory.dmp

Filesize
7.7MB

Download
memory/4956-14-0x00000000743C0000-0x0000000074B70000-memory.dmp

Filesize
7.7MB

Download