asyncrat | ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60

Analysis

max time kernel
6s
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
31/08/2026, 15:00

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General

Target
ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
Size 45KB
Sample260831-sdlftshb29
SHA256 ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60
MD5 73a1bcf0e708bb144673dc5754de1240
SHA1 0fdcdb98c38ea501ebba55ad9176bf7d3944e926
SHA512 5fff3f79e1c8abc3670688ca60122ec3463c60af66cc7692eeee6198b6c42548313b8c3846d5d04454103387e561299ce0032707b93a9eff93e582164f88898f
SSDEEP 768:suJdpTP3tcsWUODmqmo2qVs+GtnVnJtHuPIWzjbOgX3ikvSjmPyuGZkaUBDZkx:suJdpTPdI2n++B3W3bxXSpmIwdkx
TLSH
T169231B003BE8812BF2BE4F7859F25145867AF2673603DA4E2CC442D75623FC59A526FE
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
cryptolocker.sexvietnam.mobi:80
cryptolocker.sexvietnam.mobi:22
cryptolocker.sexvietnam.mobi:8080
cryptolocker.sexvietnam.mobi:8880
cryptolocker.sexvietnam.mobi:2052
cryptolocker.sexvietnam.mobi:2082
cryptolocker.sexvietnam.mobi:2086
cryptolocker.sexvietnam.mobi:2095
cryptolocker.sexvietnam.mobi:443
cryptolocker.sexvietnam.mobi:2053
cryptolocker.sexvietnam.mobi:2083
cryptolocker.sexvietnam.mobi:2087
cryptolocker.sexvietnam.mobi:2096
cryptolocker.sexvietnam.mobi:8443
sasser.sexvietnam.mobi:80
sasser.sexvietnam.mobi:22
sasser.sexvietnam.mobi:8080
sasser.sexvietnam.mobi:8880
sasser.sexvietnam.mobi:2052
sasser.sexvietnam.mobi:2082
sasser.sexvietnam.mobi:2086
sasser.sexvietnam.mobi:2095
sasser.sexvietnam.mobi:443
sasser.sexvietnam.mobi:2053
sasser.sexvietnam.mobi:2083
sasser.sexvietnam.mobi:2087
sasser.sexvietnam.mobi:2096
sasser.sexvietnam.mobi:8443

Mutex

lZAwdHR6BVFe

Attributes

delay
0
install
true
install_file
48h5gp2f.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/0x000e00000001c499-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
2768	48h5gp2f.exe
1368	48h5gp2f.exe

Outbound SSH connection to public host 2 TTPs 5 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	15	5.61.208.88:22
SSH destination	16	5.61.208.88:22
SSH destination	8	5.61.208.88:22
SSH destination	12	5.61.208.88:22
SSH destination	14	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
2816	cmd.exe
2312	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	48h5gp2f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.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	48h5gp2f.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
5356	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
1872	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3956 wrote to memory of 2816	3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe	89
PID 3956 wrote to memory of 2312	3956	ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe	90
PID 2816 wrote to memory of 1872	2816	cmd.exe	93
PID 2312 wrote to memory of 5356	2312	cmd.exe	94
PID 2312 wrote to memory of 1368	2312	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe
"C:\Users\Admin\AppData\Local\Temp\ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3956
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "48h5gp2f" /tr '"C:\Users\Admin\AppData\Roaming\48h5gp2f.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2816
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "48h5gp2f" /tr '"C:\Users\Admin\AppData\Roaming\48h5gp2f.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1872
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpEF2D.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2312
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:5356
- - C:\Users\Admin\AppData\Roaming\48h5gp2f.exe
    "C:\Users\Admin\AppData\Roaming\48h5gp2f.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1368

C:\Users\Admin\AppData\Roaming\48h5gp2f.exe
"C:\Users\Admin\AppData\Roaming\48h5gp2f.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2768

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

tmpEF2D.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpEF2D.tmp.bat
Size 152B
SHA256 79315096a63e0b7947c23c037c052cc30e7510dfbd18abfdf3cd4f71c45b36b9
MD5 43217bd017dab6d8485156f2822a1449
SHA1 c80b4eebd25173bcfefa4b6aaebb3b46b76ba482
SHA512 29ba4c65ae625438c1ec150ccda8b886c1fa4d80ed8f2d9dde112a15b4b42dc9c554d5bf4140c68c7832592cbca2212229e547a4f4feee1f0d3e1025c57fa650
TLSH
T1B7C02B4292CAEF4F7805641322FAD99DB2726C193F48BB14C344402F13C0459F4DE381
MD5 SHA1 SHA512 TLSH

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48h5gp2f.exe

Path C:\Users\Admin\AppData\Roaming\48h5gp2f.exe
Size 45KB
SHA256 ba4c6ef52fec11db28cb7ff9fe6576a44e4589af08699a7338e37d28b0be1d60
MD5 73a1bcf0e708bb144673dc5754de1240
SHA1 0fdcdb98c38ea501ebba55ad9176bf7d3944e926
SHA512 5fff3f79e1c8abc3670688ca60122ec3463c60af66cc7692eeee6198b6c42548313b8c3846d5d04454103387e561299ce0032707b93a9eff93e582164f88898f
SSDEEP 768:suJdpTP3tcsWUODmqmo2qVs+GtnVnJtHuPIWzjbOgX3ikvSjmPyuGZkaUBDZkx:suJdpTPdI2n++B3W3bxXSpmIwdkx
TLSH
T169231B003BE8812BF2BE4F7859F25145867AF2673603DA4E2CC442D75623FC59A526FE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2768-12-0x0000000074580000-0x0000000074D3C000-memory.dmp

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memory/2768-14-0x0000000074580000-0x0000000074D3C000-memory.dmp

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memory/3956-0-0x0000000074702000-0x0000000074703000-memory.dmp

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memory/3956-1-0x00000000000F0000-0x0000000000102000-memory.dmp

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memory/3956-2-0x00000000746F0000-0x0000000074EAC000-memory.dmp

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memory/3956-3-0x0000000004BE0000-0x0000000004C7C000-memory.dmp

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memory/3956-8-0x00000000746F0000-0x0000000074EAC000-memory.dmp

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