asyncrat | 69d6f888fb88a7222615071f4f62aeb30fd7c0060f33af8c8c0a7327b824b226

Analysis

max time kernel
148s
max time network
149s
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, 08:47

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
vnch.exe
Size 48KB
Sample260705-kp2m7aez2q
SHA256 69d6f888fb88a7222615071f4f62aeb30fd7c0060f33af8c8c0a7327b824b226
MD5 fc4642b975086278afd15d3213316d99
SHA1 b4bbbe39ac0aba226c956824d29b05a4ff7972ce
SHA512 1eb0b05b830a6f2ab25a9fc03cea7adb8b139370a31f052b49f90421f87939aa043247e0bda9b8ec8b02b5708b547cea5add77b36a05139d4336798bb317a9d9
SSDEEP 768:SuyJNTAoZjRWUJd9bmo2qLcll8tpeB4MroNtPOVgPIvCYw0b4O4I+wjV7i/JG0Xu:SuyJNTAGL2RJVFvCYbb42zWxGEwUdHG
TLSH
T1C8233A003BED812BF2BE4F7899F2214586BAB1673603D65E5CC441D71A23FC6D6426FA
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

ta777.ph defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

ta777.ph

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

Mutex

Rq7QNpdMlLzd

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/0x000e00000001c507-11.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
1760	svchost.exe
5256	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vnch.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
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

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
468	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
3344	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe
3452	vnch.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3452	vnch.exe
Token: SeDebugPrivilege	1760	svchost.exe
Token: SeDebugPrivilege	1760	svchost.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3452 wrote to memory of 2628	3452	vnch.exe	89
PID 3452 wrote to memory of 2812	3452	vnch.exe	91
PID 2628 wrote to memory of 3344	2628	cmd.exe	93
PID 2812 wrote to memory of 468	2812	cmd.exe	94
PID 2812 wrote to memory of 5256	2812	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\vnch.exe
"C:\Users\Admin\AppData\Local\Temp\vnch.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3452
- 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:2628
- - 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:3344
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpEFD9.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2812
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:468
- - 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:5256

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:1760

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:380
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  PID:6052

C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
1⤵
PID:692

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:420

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

Replay Monitor

Loading Replay Monitor...

Downloads

prep_Activatable Class_Hermes_perf.cache

Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
Size 599B
SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
MD5 658ab8c32d4cc5deb36ac5f63da4658b
SHA1 30c12cd871ff0c2c4098d794e9ae4f2540586813
SHA512 a73030c008ef3c2e274f11c90bfe79fa8ae402f76801c710bed8cc1ab1218a84858ea566b772be4bade8ef639a019c57d297028df15b64b3753482cf0f3c8f85
TLSH
T12AF05C83EB6A1B72C456123DC8EE56E47B31D1846EC11367A2107B1D3C2B7192D174BD
MD5 SHA1 SHA512 TLSH

Submit Download

tmpEFD9.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpEFD9.tmp.bat
Size 151B
SHA256 5ac0e7b5d4148c102e8a6cf932eca7fea744833a16122a9d3576fdcd317bad06
MD5 2013c1b36829fa5c04a297e7205e451b
SHA1 95fb9900469eab88ababcf276f8abd1feb0d3be3
SHA512 baaeaeb7272e6186e0b26b8f905bdc54a96a088c19ddef7fc076f8ed6f3e5938a7e66e0bc2f58d3c43201c5560cb3059d2eef23970b8f4ababb753f71eafeded
TLSH
T19CC02B4252CBEA1E3806149302FAD49DD6B26C193F44BF84C304401D67C084CFCEB341
MD5 SHA1 SHA512 TLSH

Submit Download

svchost.exe

Path C:\Users\Admin\AppData\Roaming\svchost.exe
Size 48KB
SHA256 69d6f888fb88a7222615071f4f62aeb30fd7c0060f33af8c8c0a7327b824b226
MD5 fc4642b975086278afd15d3213316d99
SHA1 b4bbbe39ac0aba226c956824d29b05a4ff7972ce
SHA512 1eb0b05b830a6f2ab25a9fc03cea7adb8b139370a31f052b49f90421f87939aa043247e0bda9b8ec8b02b5708b547cea5add77b36a05139d4336798bb317a9d9
SSDEEP 768:SuyJNTAoZjRWUJd9bmo2qLcll8tpeB4MroNtPOVgPIvCYw0b4O4I+wjV7i/JG0Xu:SuyJNTAGL2RJVFvCYbb42zWxGEwUdHG
TLSH
T1C8233A003BED812BF2BE4F7899F2214586BAB1673603D65E5CC441D71A23FC6D6426FA
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/420-192-0x0000017803220000-0x0000017803654000-memory.dmp

Download

memory/692-60-0x000001538C7B0000-0x000001538C7D0000-memory.dmp

Download

memory/692-43-0x0000014B82A40000-0x0000014B82A60000-memory.dmp

Download

memory/692-44-0x0000014B82E60000-0x0000014B82F60000-memory.dmp

Download

memory/692-50-0x0000014B82CA0000-0x0000014B82CC0000-memory.dmp

Download

memory/692-38-0x0000014B801E0000-0x0000014B802E0000-memory.dmp

Download

memory/692-36-0x0000014B801E0000-0x0000014B802E0000-memory.dmp

Download

memory/1760-13-0x0000000074FC0000-0x000000007577C000-memory.dmp

Download

memory/1760-15-0x0000000074FC0000-0x000000007577C000-memory.dmp

Download

memory/3452-0-0x0000000074FD2000-0x0000000074FD3000-memory.dmp

Download

memory/3452-10-0x0000000074FC0000-0x000000007577C000-memory.dmp

Download

memory/3452-4-0x0000000005900000-0x000000000599C000-memory.dmp

Download

memory/3452-3-0x0000000003010000-0x0000000003076000-memory.dmp

Download

memory/3452-2-0x0000000074FC0000-0x000000007577C000-memory.dmp

Download

memory/3452-1-0x0000000000A90000-0x0000000000AA2000-memory.dmp

Download

memory/6052-191-0x0000000003A30000-0x0000000003BFA000-memory.dmp

Download