asyncrat | d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16

Analysis

max time kernel
6s
max time network
152s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
17/08/2026, 15:48

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General

Target
d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
Size 45KB
Sample260817-s8395atfja
SHA256 d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16
MD5 1727a4087d77f6927b379a9e409f469d
SHA1 b5e9be963030674349d496e5654ddac16dc10c24
SHA512 f20b7030fd7545e5976ad6b37455f536ac2319d19d6b7c076fecde52ac0c206c84b0293727edad3ca8aec78bd4221b2bed930c69281abfdc714b7f7761adfe19
SSDEEP 768:suJdpTP3tcsWUODmqmo2qV+xJaxrPHuPIHzjbkgh3iUS/qsjsKYMP2MpT5BDZkx:suJdpTPdI27eR3H3brhSUSiCVYXendkx
TLSH
T163231B003BE8812BF2BE4FB8A8F26145467AF5637603D54D2CC451DB5623FC69A426FD
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

mio9ecge.name:80
mio9ecge.name:22
mio9ecge.name:8080
mio9ecge.name:8880
mio9ecge.name:2052
mio9ecge.name:2082
mio9ecge.name:2086
mio9ecge.name:2095
mio9ecge.name:443
mio9ecge.name:2053
mio9ecge.name:2083
mio9ecge.name:2087
mio9ecge.name:2096
mio9ecge.name:8443
www.mio9ecge.name:80
www.mio9ecge.name:22
www.mio9ecge.name:8080
www.mio9ecge.name:8880
www.mio9ecge.name:2052
www.mio9ecge.name:2082
www.mio9ecge.name:2086
www.mio9ecge.name:2095
www.mio9ecge.name:443
www.mio9ecge.name:2053
www.mio9ecge.name:2083
www.mio9ecge.name:2087
www.mio9ecge.name:2096
www.mio9ecge.name:8443
trisis.mio9ecge.name:80
trisis.mio9ecge.name:22
trisis.mio9ecge.name:8080
trisis.mio9ecge.name:8880
trisis.mio9ecge.name:2052
trisis.mio9ecge.name:2082
trisis.mio9ecge.name:2086
trisis.mio9ecge.name:2095
trisis.mio9ecge.name:443
trisis.mio9ecge.name:2053
trisis.mio9ecge.name:2083
trisis.mio9ecge.name:2087
trisis.mio9ecge.name:2096
trisis.mio9ecge.name:8443
dridex.mio9ecge.name:80
dridex.mio9ecge.name:22
dridex.mio9ecge.name:8080
dridex.mio9ecge.name:8880
dridex.mio9ecge.name:2052
dridex.mio9ecge.name:2082
dridex.mio9ecge.name:2086
dridex.mio9ecge.name:2095
dridex.mio9ecge.name:443
dridex.mio9ecge.name:2053
dridex.mio9ecge.name:2083
dridex.mio9ecge.name:2087
dridex.mio9ecge.name:2096
dridex.mio9ecge.name:8443
ryuk.mio9ecge.name:80
ryuk.mio9ecge.name:22
ryuk.mio9ecge.name:8080
ryuk.mio9ecge.name:8880
ryuk.mio9ecge.name:2052
ryuk.mio9ecge.name:2082
ryuk.mio9ecge.name:2086
ryuk.mio9ecge.name:2095
ryuk.mio9ecge.name:443
ryuk.mio9ecge.name:2053
ryuk.mio9ecge.name:2083
ryuk.mio9ecge.name:2087
ryuk.mio9ecge.name:2096
ryuk.mio9ecge.name:8443

Mutex

J5jY7AbgPmEh

Attributes

delay
0
install
true
install_file
nmfutvok.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/0x0003000000008f2c-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4448	nmfutvok.exe
1120	nmfutvok.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
4124	cmd.exe
4384	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	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nmfutvok.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nmfutvok.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
5124	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
3104	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 4124	2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe	89
PID 2420 wrote to memory of 4384	2420	d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe	91
PID 4124 wrote to memory of 3104	4124	cmd.exe	93
PID 4384 wrote to memory of 5124	4384	cmd.exe	94
PID 4384 wrote to memory of 1120	4384	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe
"C:\Users\Admin\AppData\Local\Temp\d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "nmfutvok" /tr '"C:\Users\Admin\AppData\Roaming\nmfutvok.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4124
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "nmfutvok" /tr '"C:\Users\Admin\AppData\Roaming\nmfutvok.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3104
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA66.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4384
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:5124
- - C:\Users\Admin\AppData\Roaming\nmfutvok.exe
    "C:\Users\Admin\AppData\Roaming\nmfutvok.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1120

C:\Users\Admin\AppData\Roaming\nmfutvok.exe
"C:\Users\Admin\AppData\Roaming\nmfutvok.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4448

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

tmpA66.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpA66.tmp.bat
Size 151B
SHA256 c9a770499e5f9098aebc54142958281a129d07aee8f16527904c01b09f657af5
MD5 e4c69873d7c2b79b501accebc0f2c21e
SHA1 46e2dc82864c1ddeca8dbfdecb976b51b35ee970
SHA512 85fbc7ef748c2d116e0f882d3a95693f15b35fccd2b251be38d499d7d63663421d41b571c75f8af2807cc1d0c4016253b7cd8ffbb2a3cf49154821bc25b23314
TLSH
T147C02B5261C9FA2E3805241312FBD49DA1B26EA93F80FF20D744402E568055EF4E9381
MD5 SHA1 SHA512 TLSH

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nmfutvok.exe

Path C:\Users\Admin\AppData\Roaming\nmfutvok.exe
Size 45KB
SHA256 d1ea668ff6a751c8e4cd808a2028d675ee84b12d23db1409b1adcd1f364a0c16
MD5 1727a4087d77f6927b379a9e409f469d
SHA1 b5e9be963030674349d496e5654ddac16dc10c24
SHA512 f20b7030fd7545e5976ad6b37455f536ac2319d19d6b7c076fecde52ac0c206c84b0293727edad3ca8aec78bd4221b2bed930c69281abfdc714b7f7761adfe19
SSDEEP 768:suJdpTP3tcsWUODmqmo2qV+xJaxrPHuPIHzjbkgh3iUS/qsjsKYMP2MpT5BDZkx:suJdpTPdI27eR3H3brhSUSiCVYXendkx
TLSH
T163231B003BE8812BF2BE4FB8A8F26145467AF5637603D54D2CC451DB5623FC69A426FD
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2420-0-0x00000000744C2000-0x00000000744C3000-memory.dmp

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memory/2420-1-0x00000000007E0000-0x00000000007F2000-memory.dmp

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memory/2420-2-0x00000000744B0000-0x0000000074C6C000-memory.dmp

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memory/2420-3-0x0000000005350000-0x00000000053EC000-memory.dmp

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memory/2420-8-0x00000000744B0000-0x0000000074C6C000-memory.dmp

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memory/4448-12-0x0000000074340000-0x0000000074AFC000-memory.dmp

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memory/4448-14-0x0000000074340000-0x0000000074AFC000-memory.dmp

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