asyncrat | 98096088abab458c12a68bd71e7064e2e81e7fda79bfd582f97e6101363e81bc

Analysis

max time kernel
148s
max time network
143s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260629-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
05/07/2026, 07:39

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General

Target
vnc.exe
Size 48KB
Sample260705-jg6rhaew5n
SHA256 98096088abab458c12a68bd71e7064e2e81e7fda79bfd582f97e6101363e81bc
MD5 954b9000644497b9688c881e438e28c7
SHA1 bf02d23a7b67244f3294aae5b83c3afe50f2dc77
SHA512 6a6d5a100e122cfcbd69fc41595c21687b05509d0f800666dd184d56fab0180cf98306e09b650ffdff70e1a6b9e475ea40e098c9cdf0e0c45f525097e53f880b
SSDEEP 768:muyJNTAoZjRWUJd9bmo2qLKwoBBWGPI4Sady5WO0by76v6W5vrUU1vv/2cuvuBDg:muyJNTAGL2RBB+xady5WhbyOvLtrUGer
TLSH
T148234D003BED812BF2BE4FB499F22145867AF2637603E54E6CC451D75A13FC686429FA
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

ta777.live defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

ta777.live

ta777.live:8443
ta777.live:81
ta777.live:7878
ta777.live:8787
ta777.live:6789

Mutex

gPRRAk7312DI

Attributes

delay
3
install
true
install_file
svchost.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/0x000d00000001c693-11.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
6580	svchost.exe
6956	svchost.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	cmd.exe
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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vnc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2916	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
2772	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe
6088	vnc.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	6088	vnc.exe
Token: SeDebugPrivilege	6580	svchost.exe
Token: SeDebugPrivilege	6580	svchost.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 6088 wrote to memory of 1532	6088	vnc.exe	90
PID 6088 wrote to memory of 6312	6088	vnc.exe	92
PID 1532 wrote to memory of 2772	1532	cmd.exe	94
PID 6312 wrote to memory of 2916	6312	cmd.exe	95
PID 6312 wrote to memory of 6956	6312	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\vnc.exe
"C:\Users\Admin\AppData\Local\Temp\vnc.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:6088
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1532
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2772
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8F5A.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:6312
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2916
- - C:\Users\Admin\AppData\Roaming\svchost.exe
    "C:\Users\Admin\AppData\Roaming\svchost.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:6956

C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:6580

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

tmp8F5A.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp8F5A.tmp.bat
Size 151B
SHA256 1dc2cb82f797ae2ce9f661ab0f4a4cc81914ea2576c5b43314dd65f714c42de3
MD5 ca25ee1f8c8eea47f22b71e2d7359bab
SHA1 a3ac49963f17f3bd8fe6c0599a0d365073b0f4a6
SHA512 283b6e39249899c91e50e9b84ba2fbc2ad2f307f41d5c193ab5743cccc8e6b2d691c9bb1db82acfb4f46bbffbd24c950a42f9f14a04011ee25195de9d86127aa
TLSH
T1A5C02B4255C5EA0E2805946303FAD48D93B2AD193F44BF80C304405D338044CF5EA342
MD5 SHA1 SHA512 TLSH

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svchost.exe

Path C:\Users\Admin\AppData\Roaming\svchost.exe
Size 48KB
SHA256 98096088abab458c12a68bd71e7064e2e81e7fda79bfd582f97e6101363e81bc
MD5 954b9000644497b9688c881e438e28c7
SHA1 bf02d23a7b67244f3294aae5b83c3afe50f2dc77
SHA512 6a6d5a100e122cfcbd69fc41595c21687b05509d0f800666dd184d56fab0180cf98306e09b650ffdff70e1a6b9e475ea40e098c9cdf0e0c45f525097e53f880b
SSDEEP 768:muyJNTAoZjRWUJd9bmo2qLKwoBBWGPI4Sady5WO0by76v6W5vrUU1vv/2cuvuBDg:muyJNTAGL2RBB+xady5WhbyOvLtrUGer
TLSH
T148234D003BED812BF2BE4FB499F22145867AF2637603E54E6CC451D75A13FC686429FA
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/6088-0-0x0000000074552000-0x0000000074553000-memory.dmp

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memory/6088-1-0x0000000000130000-0x0000000000142000-memory.dmp

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memory/6088-2-0x0000000074540000-0x0000000074CFC000-memory.dmp

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memory/6088-3-0x0000000004C00000-0x0000000004C66000-memory.dmp

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memory/6088-4-0x00000000050D0000-0x000000000516C000-memory.dmp

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memory/6088-9-0x0000000074540000-0x0000000074CFC000-memory.dmp

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memory/6580-13-0x00000000744C0000-0x0000000074C7C000-memory.dmp

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memory/6580-15-0x00000000744C0000-0x0000000074C7C000-memory.dmp

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