asyncrat | a0470b9276f5ef410e0db769efba305d836eee50303a9dad086139c689e5cb5d

Analysis

max time kernel
148s
max time network
149s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
02/11/2026, 08:36

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General

Target
patch.exe
Size 112KB
Sample261102-khmwfsty6r
SHA256 a0470b9276f5ef410e0db769efba305d836eee50303a9dad086139c689e5cb5d
MD5 c3c739b40cf1be1624fcc4795561f4c9
SHA1 2b8b120be59d5bf8fb2fce31a73e15e2a77bdcb7
SHA512 16a5c6ba18c5f7b04c97022da87affc4611ad2ae87a3a0b8b54564723cd5c1cc5edc10cbb0678162fbdfe9fef67e89c3a83c614262045e143d2b52b423083486
SSDEEP 1536:bu+M1TFlJ42Z6VO3z3bhdSNmLlPidKtKrqi35RwYR:bu+YTFlW2Ak3z3bhYm45PwYR
TLSH
T1E1B39F30EFD7B036EC2D4AFC5CA371714929A9D3250EF53AFDC0329746226C1A5726A9
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default command_and_control defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

f8bet88.shop:443
f8bet88.shop:80
f8bet88.shop:22
f8bet88.shop:3306
f8bet88.shop:21
f8bet88.shop:5900
www.f8bet88.shop:443
www.f8bet88.shop:80
www.f8bet88.shop:22
www.f8bet88.shop:3306
www.f8bet88.shop:21
www.f8bet88.shop:5900
api.f8bet88.shop:443
api.f8bet88.shop:80
api.f8bet88.shop:22
api.f8bet88.shop:3306
api.f8bet88.shop:21
api.f8bet88.shop:5900

Mutex

Ltzy1hdpKevl

Attributes

delay
3
install
true
install_file
patch.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/0x0004000000008f26-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
5412	patch.exe
696	patch.exe

Outbound SSH connection to public host 2 TTPs 2 IoCs

SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

command_and_control

Protocol Tunneling

T1572

Network Service Discovery

T1046

description	flow	ioc
SSH destination	15	66.33.60.34:22
SSH destination	16	76.76.21.164:22

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

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 2 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
4932	cmd.exe
4292	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	patch.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	patch.exe

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	patch.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	patch.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	patch.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
1756	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
4120	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe
3360	patch.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3360	patch.exe
Token: SeDebugPrivilege	5412	patch.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3360 wrote to memory of 4932	3360	patch.exe	89
PID 3360 wrote to memory of 4292	3360	patch.exe	91
PID 4932 wrote to memory of 4120	4932	cmd.exe	93
PID 4292 wrote to memory of 1756	4292	cmd.exe	94
PID 4292 wrote to memory of 696	4292	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\patch.exe
"C:\Users\Admin\AppData\Local\Temp\patch.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3360
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "patch" /tr '"C:\Users\Admin\AppData\Roaming\patch.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4932
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "patch" /tr '"C:\Users\Admin\AppData\Roaming\patch.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4120
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp306D.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4292
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:1756
- - C:\Users\Admin\AppData\Roaming\patch.exe
    "C:\Users\Admin\AppData\Roaming\patch.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:696

C:\Users\Admin\AppData\Roaming\patch.exe
"C:\Users\Admin\AppData\Roaming\patch.exe"
1⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:5412

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

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

Network Service Discovery

T1046

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Protocol Tunneling

T1572

Exfiltration

Impact

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Downloads

tmp306D.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp306D.tmp.bat
Size 149B
SHA256 94fb199cfe61c7fb456fcf7569288c7c55f38cd1d44a210be2aa657ef3f89434
MD5 d5af421f005ca2e33ef0b0e2b8a3a652
SHA1 1c7065a5230df84a9aee2e4f200338cb36bd6129
SHA512 5cb08432d087fc5ae26718b19d0a22ab6f84c6b2ca641bc5f72db948245f4945d4a6890b5f1a1b2fd5b7f58a0c358cc8831fb6c476fa5dddd94300b07edec4ea
TLSH
T17FC08CB251C5AA0E3D09141303BBD49CA26A6C6D3E80AB008304448D2681888E099241
MD5 SHA1 SHA512 TLSH

Submit Download

patch.exe

Path C:\Users\Admin\AppData\Roaming\patch.exe
Size 112KB
SHA256 a0470b9276f5ef410e0db769efba305d836eee50303a9dad086139c689e5cb5d
MD5 c3c739b40cf1be1624fcc4795561f4c9
SHA1 2b8b120be59d5bf8fb2fce31a73e15e2a77bdcb7
SHA512 16a5c6ba18c5f7b04c97022da87affc4611ad2ae87a3a0b8b54564723cd5c1cc5edc10cbb0678162fbdfe9fef67e89c3a83c614262045e143d2b52b423083486
SSDEEP 1536:bu+M1TFlJ42Z6VO3z3bhdSNmLlPidKtKrqi35RwYR:bu+YTFlW2Ak3z3bhYm45PwYR
TLSH
T1E1B39F30EFD7B036EC2D4AFC5CA371714929A9D3250EF53AFDC0329746226C1A5726A9
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3360-0-0x00000000742E2000-0x00000000742E3000-memory.dmp

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memory/3360-1-0x00000000007E0000-0x0000000000802000-memory.dmp

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memory/3360-2-0x00000000742D0000-0x0000000074A8C000-memory.dmp

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memory/3360-3-0x0000000005380000-0x000000000541C000-memory.dmp

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memory/3360-9-0x00000000742D0000-0x0000000074A8C000-memory.dmp

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memory/5412-12-0x00000000742C0000-0x0000000074A7C000-memory.dmp

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memory/5412-14-0x00000000742C0000-0x0000000074A7C000-memory.dmp

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