asyncrat | 09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f

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
31/08/2026, 15:13

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General

Target
09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
Size 45KB
Sample260831-slyfcsxthx
SHA256 09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f
MD5 b02b68760aeb3b45a3ce6fadff586d28
SHA1 da533c741abea81f83ebd773c369d4d7e7a941ee
SHA512 ec3731986aaa1b9e4162a7188f0ada6ff08c7d006ff037d994ee0d936a53cf425864c464e9aac148dd2c34ab3dd1d15ea3492a5162f378fd01129119e0b09276
SSDEEP 768:suJdpTP3tcsWUODmqmo2qVp3wZQaKkPI3zjbugX3i1fVOPhaTzix1mWoEWBDZkx:suJdpTPdI2/I33bRXSTMI4ME4dkx
TLSH
T1B3231A003BE9812BF27E4FB8A8F26145467AF5636603D64D2C8451DB5623FC6CA426ED
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

sexvietnam.mobi:80
sexvietnam.mobi:22
sexvietnam.mobi:8080
sexvietnam.mobi:8880
sexvietnam.mobi:2052
sexvietnam.mobi:2082
sexvietnam.mobi:2086
sexvietnam.mobi:2095
sexvietnam.mobi:443
sexvietnam.mobi:2053
sexvietnam.mobi:2083
sexvietnam.mobi:2087
sexvietnam.mobi:2096
sexvietnam.mobi:8443
www.sexvietnam.mobi:80
www.sexvietnam.mobi:22
www.sexvietnam.mobi:8080
www.sexvietnam.mobi:8880
www.sexvietnam.mobi:2052
www.sexvietnam.mobi:2082
www.sexvietnam.mobi:2086
www.sexvietnam.mobi:2095
www.sexvietnam.mobi:443
www.sexvietnam.mobi:2053
www.sexvietnam.mobi:2083
www.sexvietnam.mobi:2087
www.sexvietnam.mobi:2096
www.sexvietnam.mobi:8443
malware.sexvietnam.mobi:80
malware.sexvietnam.mobi:22
malware.sexvietnam.mobi:8080
malware.sexvietnam.mobi:8880
malware.sexvietnam.mobi:2052
malware.sexvietnam.mobi:2082
malware.sexvietnam.mobi:2086
malware.sexvietnam.mobi:2095
malware.sexvietnam.mobi:443
malware.sexvietnam.mobi:2053
malware.sexvietnam.mobi:2083
malware.sexvietnam.mobi:2087
malware.sexvietnam.mobi:2096
malware.sexvietnam.mobi:8443

Mutex

m4oLDs5PRQMx

Attributes

delay
0
install
true
install_file
cvf6ff70.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/0x000f00000001c4df-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4704	cvf6ff70.exe
4268	cvf6ff70.exe

Outbound SSH connection to public host 2 TTPs 1 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	6	5.61.208.88:22

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
5056	cmd.exe
4308	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	cvf6ff70.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cvf6ff70.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4880	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
3444	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3304 wrote to memory of 5056	3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe	89
PID 3304 wrote to memory of 4308	3304	09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe	90
PID 4308 wrote to memory of 4880	4308	cmd.exe	93
PID 5056 wrote to memory of 3444	5056	cmd.exe	94
PID 4308 wrote to memory of 4268	4308	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe
"C:\Users\Admin\AppData\Local\Temp\09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3304
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "cvf6ff70" /tr '"C:\Users\Admin\AppData\Roaming\cvf6ff70.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5056
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "cvf6ff70" /tr '"C:\Users\Admin\AppData\Roaming\cvf6ff70.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3444
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp2512.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4308
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4880
- - C:\Users\Admin\AppData\Roaming\cvf6ff70.exe
    "C:\Users\Admin\AppData\Roaming\cvf6ff70.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4268

C:\Users\Admin\AppData\Roaming\cvf6ff70.exe
"C:\Users\Admin\AppData\Roaming\cvf6ff70.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4704

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

Lateral Movement

Collection

Command and Control

Protocol Tunneling

T1572

Exfiltration

Impact

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Downloads

tmp2512.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp2512.tmp.bat
Size 152B
SHA256 f06851512766216b4eeb7dc2271d63a78f7ff4609f6725e06430f744ab56abdf
MD5 3b750380183f3d8edea2f3e833519319
SHA1 f7cdd86d7ca1b78ddcfdb04d5b6a3de4aa9a0494
SHA512 8b91b387f0a8ee1e756f4428ea9562df1b875387e035dc926748484d6645a3f79110ff5137e5de394f13f83e20763042648d392e883f156eaf5995cfd25e9dd1
TLSH
T158C08C9261C6AA1E29065C1316BBE59D92A668993E40AB008304840A5380868F0A9282
MD5 SHA1 SHA512 TLSH

Submit Download

cvf6ff70.exe

Path C:\Users\Admin\AppData\Roaming\cvf6ff70.exe
Size 45KB
SHA256 09583018baa5d2667e41271e62687db998772882f22c5ddd4bbdd420d25e2d8f
MD5 b02b68760aeb3b45a3ce6fadff586d28
SHA1 da533c741abea81f83ebd773c369d4d7e7a941ee
SHA512 ec3731986aaa1b9e4162a7188f0ada6ff08c7d006ff037d994ee0d936a53cf425864c464e9aac148dd2c34ab3dd1d15ea3492a5162f378fd01129119e0b09276
SSDEEP 768:suJdpTP3tcsWUODmqmo2qVp3wZQaKkPI3zjbugX3i1fVOPhaTzix1mWoEWBDZkx:suJdpTPdI2/I33bRXSTMI4ME4dkx
TLSH
T1B3231A003BE9812BF27E4FB8A8F26145467AF5636603D64D2C8451DB5623FC6CA426ED
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3304-0-0x0000000074562000-0x0000000074563000-memory.dmp

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memory/3304-1-0x0000000000780000-0x0000000000792000-memory.dmp

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memory/3304-2-0x0000000074550000-0x0000000074D0C000-memory.dmp

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memory/3304-3-0x00000000052F0000-0x000000000538C000-memory.dmp

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memory/3304-8-0x0000000074550000-0x0000000074D0C000-memory.dmp

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memory/4704-12-0x00000000743E0000-0x0000000074B9C000-memory.dmp

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memory/4704-14-0x00000000743E0000-0x0000000074B9C000-memory.dmp

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