asyncrat | 9232da169c68f8673643676fa960c5f590d712b62b29f267b3511e7399e7c2ed

Analysis

max time kernel
148s
max time network
150s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
10/09/2026, 15:43

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General

Target
mcoaisduasd9.exe
Size 45KB
Sample260910-s59bzadn51
SHA256 9232da169c68f8673643676fa960c5f590d712b62b29f267b3511e7399e7c2ed
MD5 4630c7825d8d81a6775f2e9efff9649a
SHA1 f3566686843ad2e40514b46aa98690b3ba557d9b
SHA512 6ed2c92b9c97df398402aea92cc63afd8c086d9c017123319914e4fb295de0559bddcaee499ba26cf997fbd9ff0234ef379d84c43ab2f2f4ed13ff6d13621bf9
SSDEEP 768:hu5GdTtQpVBTWU/fShmo2qg7fp+nUzYgfpPI1Rjb8gX3i1BX06WyLpfpxu47BDZ9:hu5GdTt0y2vk2d+1BbTXS1J0qLpfp/d9
TLSH
T12C231B003BE8C127F2BE4FB858F26145467AF1677603D68E1CC4519B5713BC29A52AFE
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

admin defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Admin

xemphim3x.tv:80
xemphim3x.tv:443
xemphim3x.tv:7788
xemphim3x.tv:7879
xemphim3x.tv:3577
xemphim3x.tv:8888
xemphim3x.tv:3306
xemphim3x.tv:21
xemphim3x.tv:22
www.xemphim3x.tv:80
www.xemphim3x.tv:443
www.xemphim3x.tv:7788
www.xemphim3x.tv:7879
www.xemphim3x.tv:3577
www.xemphim3x.tv:8888
www.xemphim3x.tv:3306
www.xemphim3x.tv:21
www.xemphim3x.tv:22
malware.xemphim3x.tv:80
malware.xemphim3x.tv:443
malware.xemphim3x.tv:7788
malware.xemphim3x.tv:7879
malware.xemphim3x.tv:3577
malware.xemphim3x.tv:8888
malware.xemphim3x.tv:3306
malware.xemphim3x.tv:21
malware.xemphim3x.tv:22
ssh.xemphim3x.tv:80
ssh.xemphim3x.tv:443
ssh.xemphim3x.tv:7788
ssh.xemphim3x.tv:7879
ssh.xemphim3x.tv:3577
ssh.xemphim3x.tv:8888
ssh.xemphim3x.tv:3306
ssh.xemphim3x.tv:21
ssh.xemphim3x.tv:22

Mutex

w80BckpT4pnF

Attributes

delay
3
install
true
install_file
mcoaisduasd9.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/0x00090000000167e7-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
1768	mcoaisduasd9.exe
1044	mcoaisduasd9.exe

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
5604	cmd.exe
2200	cmd.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	mcoaisduasd9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mcoaisduasd9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mcoaisduasd9.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
2188	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
3092	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe
1256	mcoaisduasd9.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1256	mcoaisduasd9.exe
Token: SeDebugPrivilege	1768	mcoaisduasd9.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1256 wrote to memory of 5604	1256	mcoaisduasd9.exe	89
PID 1256 wrote to memory of 2200	1256	mcoaisduasd9.exe	91
PID 5604 wrote to memory of 3092	5604	cmd.exe	93
PID 2200 wrote to memory of 2188	2200	cmd.exe	94
PID 2200 wrote to memory of 1044	2200	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\mcoaisduasd9.exe
"C:\Users\Admin\AppData\Local\Temp\mcoaisduasd9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1256
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "mcoaisduasd9" /tr '"C:\Users\Admin\AppData\Roaming\mcoaisduasd9.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5604
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "mcoaisduasd9" /tr '"C:\Users\Admin\AppData\Roaming\mcoaisduasd9.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3092
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpFF26.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2200
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2188
- - C:\Users\Admin\AppData\Roaming\mcoaisduasd9.exe
    "C:\Users\Admin\AppData\Roaming\mcoaisduasd9.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1044

C:\Users\Admin\AppData\Roaming\mcoaisduasd9.exe
"C:\Users\Admin\AppData\Roaming\mcoaisduasd9.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1768

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

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

tmpFF26.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpFF26.tmp.bat
Size 156B
SHA256 35fde889c636d247c20f8fce4f4f858abff0d827736d16a65470368fd95e2cdc
MD5 4f7dc524babaa33cc7c0dabb6749fd39
SHA1 7a4f254f0b444ab523477c8565dd115d69e73063
SHA512 71771e9696ddbadad56f4232ffe381e5a2e5e7b1ba8ee21e5101a7763a228760b8c25a50e722051c80cc68fa68eecdcd48b17eb0fc19b589dc82a1a1f0586327
TLSH
T14CC08C9256C9FA5F3909245302FAB58EB2B268193E40BB909784441916C0448E09A382
MD5 SHA1 SHA512 TLSH

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mcoaisduasd9.exe

Path C:\Users\Admin\AppData\Roaming\mcoaisduasd9.exe
Size 45KB
SHA256 9232da169c68f8673643676fa960c5f590d712b62b29f267b3511e7399e7c2ed
MD5 4630c7825d8d81a6775f2e9efff9649a
SHA1 f3566686843ad2e40514b46aa98690b3ba557d9b
SHA512 6ed2c92b9c97df398402aea92cc63afd8c086d9c017123319914e4fb295de0559bddcaee499ba26cf997fbd9ff0234ef379d84c43ab2f2f4ed13ff6d13621bf9
SSDEEP 768:hu5GdTtQpVBTWU/fShmo2qg7fp+nUzYgfpPI1Rjb8gX3i1BX06WyLpfpxu47BDZ9:hu5GdTt0y2vk2d+1BbTXS1J0qLpfp/d9
TLSH
T12C231B003BE8C127F2BE4FB858F26145467AF1677603D68E1CC4519B5713BC29A52AFE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1256-0-0x00000000751F2000-0x00000000751F3000-memory.dmp

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memory/1256-1-0x0000000000ED0000-0x0000000000EE2000-memory.dmp

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memory/1256-2-0x00000000751E0000-0x000000007599C000-memory.dmp

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memory/1256-3-0x0000000005980000-0x0000000005A1C000-memory.dmp

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memory/1256-8-0x00000000751E0000-0x000000007599C000-memory.dmp

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memory/1768-12-0x0000000075070000-0x000000007582C000-memory.dmp

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memory/1768-14-0x0000000075070000-0x000000007582C000-memory.dmp

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