asyncrat | 4fc5bc8679e046420ac7516d7a89080ba8ffd20fb7ebcc5dc6969f1df1a8a73a

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-12-2024 19:35

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General

Target

Miaou.exe
Size

393KB
MD5

ee858fa2a033e24c1fe66d5e6ac2ce8b
SHA1

c175a36ae75fed25ffd804f998ad073805300c42
SHA256

4fc5bc8679e046420ac7516d7a89080ba8ffd20fb7ebcc5dc6969f1df1a8a73a
SHA512

463ba7bba6b00bc7423017b5c01252adc957fb9bd360e6c375eeb6e61ff7f601e944c18625f7b5f768a6f2867609cd2eb06c134ac07cefe7d4275ba6cc853a16
SSDEEP

6144:a9Y5cOjYmp740NLXAY2zNivF7GlmOh/SHYy1bfV89YDwc/7GN7RVvjJbDs:a9Y5cifNLF2xivQ2DB/7yDtbDs

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

alainlegrosper.ddns.net:6606

Mutex

sgXgvLmJ6SR3

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 4768 set thread context of 468	4768	Miaou.exe	83

System Location Discovery: System Language Discovery 1 TTPs 1 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	jsc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	468	jsc.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4768 wrote to memory of 468	4768	Miaou.exe	83
PID 4768 wrote to memory of 468	4768	Miaou.exe	83
PID 4768 wrote to memory of 468	4768	Miaou.exe	83
PID 4768 wrote to memory of 468	4768	Miaou.exe	83
PID 4768 wrote to memory of 468	4768	Miaou.exe	83
PID 4768 wrote to memory of 468	4768	Miaou.exe	83
PID 4768 wrote to memory of 468	4768	Miaou.exe	83
PID 4768 wrote to memory of 468	4768	Miaou.exe	83
PID 4768 wrote to memory of 4580	4768	Miaou.exe	84
PID 4768 wrote to memory of 4580	4768	Miaou.exe	84
PID 4768 wrote to memory of 4580	4768	Miaou.exe	84

C:\Users\Admin\AppData\Local\Temp\Miaou.exe
"C:\Users\Admin\AppData\Local\Temp\Miaou.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4768
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:468
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
  2⤵
  PID:4580

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/468-10-0x0000000006680000-0x000000000671C000-memory.dmp

Filesize
624KB

Download
memory/468-14-0x0000000074910000-0x00000000750C0000-memory.dmp

Filesize
7.7MB

Download
memory/468-13-0x000000007491E000-0x000000007491F000-memory.dmp

Filesize
4KB

Download
memory/468-12-0x0000000006790000-0x00000000067F6000-memory.dmp

Filesize
408KB

Download
memory/468-4-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/468-5-0x000000007491E000-0x000000007491F000-memory.dmp

Filesize
4KB

Download
memory/468-11-0x0000000006CD0000-0x0000000007274000-memory.dmp

Filesize
5.6MB

Download
memory/468-7-0x0000000074910000-0x00000000750C0000-memory.dmp

Filesize
7.7MB

Download
memory/4768-3-0x00007FFEC6140000-0x00007FFEC6C01000-memory.dmp

Filesize
10.8MB

Download
memory/4768-6-0x00007FFEC6140000-0x00007FFEC6C01000-memory.dmp

Filesize
10.8MB

Download
memory/4768-0-0x00007FFEC6143000-0x00007FFEC6145000-memory.dmp

Filesize
8KB

Download
memory/4768-2-0x00000261FA840000-0x00000261FA8A4000-memory.dmp

Filesize
400KB

Download
memory/4768-1-0x00000261FA3C0000-0x00000261FA426000-memory.dmp

Filesize
408KB

Download