asyncrat | 66c0b53c14cd0eb5c8c8952fefdf76e6280be6516b1ddb4949e9304e8e1ac7ae

Analysis

max time kernel
12s
max time network
148s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260629-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
06/07/2026, 08:23

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General

Target
AsyncRAT.exe
Size 56KB
Sample260706-kaly7act8t
SHA256 66c0b53c14cd0eb5c8c8952fefdf76e6280be6516b1ddb4949e9304e8e1ac7ae
MD5 bff259435b1ce82366c1a33aecb1549f
SHA1 124dd4795537a876334836f7ded68452e1972ecd
SHA512 d0aef92b0162e18b7c4b48a420a6468234a4227012fe043cf6eae02e8db289e22aee71c466b412010636df89a75b063376b511a0cee3b941bdc44ff46d26c7c2
SSDEEP 1536:2uf09TH2w240YikbeXSbGLM5R7DKdNkejNUHLTq:2ufoTH2w2pYikbe1LMf/KDkINmq
TLSH
T190434B003BE98237F2BE4FB8ACF21145467AE2636603D55D2CC451DB5B23BC6DA426F9
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

3mcw.com:443
3mcw.com:8848
3mcw.com:8080

Mutex

XQUGLXmKei9m

Attributes

delay
3
install
true
install_file
AsyncRat.exe
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x0008000000016d07-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4640	AsyncRat.exe
4684	AsyncRat.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AsyncRat.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AsyncRat.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AsyncRAT.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2524	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2676	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe
4068	AsyncRAT.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4068	AsyncRAT.exe
Token: SeDebugPrivilege	4640	AsyncRat.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4068 wrote to memory of 3712	4068	AsyncRAT.exe	88
PID 4068 wrote to memory of 3660	4068	AsyncRAT.exe	90
PID 3712 wrote to memory of 2676	3712	cmd.exe	92
PID 3660 wrote to memory of 2524	3660	cmd.exe	93
PID 3660 wrote to memory of 4684	3660	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\AsyncRAT.exe
"C:\Users\Admin\AppData\Local\Temp\AsyncRAT.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4068
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "AsyncRat" /tr '"C:\Users\Admin\AppData\Roaming\AsyncRat.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3712
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "AsyncRat" /tr '"C:\Users\Admin\AppData\Roaming\AsyncRat.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2676
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpB6C8.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3660
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2524
- - C:\Users\Admin\AppData\Roaming\AsyncRat.exe
    "C:\Users\Admin\AppData\Roaming\AsyncRat.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4684

C:\Users\Admin\AppData\Roaming\AsyncRat.exe
"C:\Users\Admin\AppData\Roaming\AsyncRat.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4640

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmpB6C8.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpB6C8.tmp.bat
Size 152B
SHA256 ba0fe5e9578c72a269b85283019ac3ceb6bfd8b9d7e0d3537eb9e1916e326a52
MD5 cbdac9eb7c42d54a8e557ac04563205d
SHA1 fb5f2c6718061774c4d60e2a2d2b00b552b77398
SHA512 441785d4ab83f31064c639c1b9718f4a0de7859f7f0d7911dcb33c095773bd36f07d1dc11787d18cd36d7eaa994903ea2c20c9c7892d83fdb83c49ff4f5bc41c
TLSH
T11EC02B4393C5EB1F2C05381313FADD8C91B6AC593F80BB50C30844AD128054CF0E9381
MD5 SHA1 SHA512 TLSH

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AsyncRat.exe

Path C:\Users\Admin\AppData\Roaming\AsyncRat.exe
Size 56KB
SHA256 66c0b53c14cd0eb5c8c8952fefdf76e6280be6516b1ddb4949e9304e8e1ac7ae
MD5 bff259435b1ce82366c1a33aecb1549f
SHA1 124dd4795537a876334836f7ded68452e1972ecd
SHA512 d0aef92b0162e18b7c4b48a420a6468234a4227012fe043cf6eae02e8db289e22aee71c466b412010636df89a75b063376b511a0cee3b941bdc44ff46d26c7c2
SSDEEP 1536:2uf09TH2w240YikbeXSbGLM5R7DKdNkejNUHLTq:2ufoTH2w2pYikbe1LMf/KDkINmq
TLSH
T190434B003BE98237F2BE4FB8ACF21145467AE2636603D55D2CC451DB5B23BC6DA426F9
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/4068-0-0x0000000074972000-0x0000000074973000-memory.dmp

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memory/4068-1-0x0000000000D20000-0x0000000000D34000-memory.dmp

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memory/4068-2-0x0000000074960000-0x000000007511C000-memory.dmp

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memory/4068-3-0x0000000005760000-0x00000000057FC000-memory.dmp

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memory/4068-9-0x0000000074960000-0x000000007511C000-memory.dmp

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memory/4640-12-0x0000000074960000-0x000000007511C000-memory.dmp

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memory/4640-14-0x0000000074960000-0x000000007511C000-memory.dmp

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