asyncrat | 45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2

Analysis

max time kernel
6s
max time network
149s
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, 16:51

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General

Target
45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
Size 45KB
Sample260831-vcsjvshe85
SHA256 45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2
MD5 f68b27b4188975d2b39abddb87aebd82
SHA1 e4834bd6bf4f52801f6b55281e4a98b7bfb1af16
SHA512 ae8c85fa16021b4cb5eab477d482d66e6646901b488bda9181b4348fbfe9783ed8a989519aea3ab6b30b1cbdf31c8da31eebf0291bc65256b24e910fe16ee109
SSDEEP 768:cu7m/5THrq+CWUoDuMmo2qFCm/9GgrOPIRzjb8gX3iRvaDUrjpDOgiX3BDZUx:cu7e5TH2A2pm1b3R3bTXSnpQXxdUx
TLSH
T1DA232B003BE8C12BF2BE4F749DF26145467AF5A36603D54E1CC452DB5A23BC68A426FE
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
cl0p.sexvietnam.mobi:80
cl0p.sexvietnam.mobi:22
cl0p.sexvietnam.mobi:8080
cl0p.sexvietnam.mobi:8880
cl0p.sexvietnam.mobi:2052
cl0p.sexvietnam.mobi:2082
cl0p.sexvietnam.mobi:2086
cl0p.sexvietnam.mobi:2095
cl0p.sexvietnam.mobi:443
cl0p.sexvietnam.mobi:2053
cl0p.sexvietnam.mobi:2083
cl0p.sexvietnam.mobi:2087
cl0p.sexvietnam.mobi:2096
cl0p.sexvietnam.mobi:8443
fakeupdates.sexvietnam.mobi:80
fakeupdates.sexvietnam.mobi:22
fakeupdates.sexvietnam.mobi:8080
fakeupdates.sexvietnam.mobi:8880
fakeupdates.sexvietnam.mobi:2052
fakeupdates.sexvietnam.mobi:2082
fakeupdates.sexvietnam.mobi:2086
fakeupdates.sexvietnam.mobi:2095
fakeupdates.sexvietnam.mobi:443
fakeupdates.sexvietnam.mobi:2053
fakeupdates.sexvietnam.mobi:2083
fakeupdates.sexvietnam.mobi:2087
fakeupdates.sexvietnam.mobi:2096
fakeupdates.sexvietnam.mobi:8443

Mutex

4J6oqzWNG0PB

Attributes

delay
0
install
true
install_file
zvesf.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/0x000d00000001c614-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
6140	zvesf.exe
1968	zvesf.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	21	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
3644	cmd.exe
1096	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	zvesf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zvesf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.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
4912	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
4348	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
Token: SeDebugPrivilege	6140	zvesf.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 916 wrote to memory of 3644	916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe	88
PID 916 wrote to memory of 1096	916	45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe	89
PID 3644 wrote to memory of 4348	3644	cmd.exe	92
PID 1096 wrote to memory of 4912	1096	cmd.exe	93
PID 1096 wrote to memory of 1968	1096	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe
"C:\Users\Admin\AppData\Local\Temp\45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:916
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "zvesf" /tr '"C:\Users\Admin\AppData\Roaming\zvesf.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3644
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "zvesf" /tr '"C:\Users\Admin\AppData\Roaming\zvesf.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4348
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpE8A1.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1096
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4912
- - C:\Users\Admin\AppData\Roaming\zvesf.exe
    "C:\Users\Admin\AppData\Roaming\zvesf.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1968

C:\Users\Admin\AppData\Roaming\zvesf.exe
"C:\Users\Admin\AppData\Roaming\zvesf.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:6140

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

Replay Monitor

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Downloads

tmpE8A1.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpE8A1.tmp.bat
Size 149B
SHA256 c822ca86c77237619126b1ac4e95fa4322da85936de12df7fd573cf1902ef252
MD5 bd33c7db261a0a335e77d310c8ac91c9
SHA1 24ae8d1d471b31c8d6dd0bc97f3946bde542f481
SHA512 1c83126ac7b99f1da5dd96f51f43790f5b5956cba0702ddd7a133a74fca3393416c2943cc429546e8b9419b3391bad658c9ae8cc4eff11bdc91a97daebace74a
TLSH
T14CC02B8251C6FA0E7805245312FAD88CA1726C1D3FC4FB04C304400D53C0449F0EA786
MD5 SHA1 SHA512 TLSH

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zvesf.exe

Path C:\Users\Admin\AppData\Roaming\zvesf.exe
Size 45KB
SHA256 45d997f599eee9164803f648bbf6fb27aa0b354d8cc13ed495be446c3abce9d2
MD5 f68b27b4188975d2b39abddb87aebd82
SHA1 e4834bd6bf4f52801f6b55281e4a98b7bfb1af16
SHA512 ae8c85fa16021b4cb5eab477d482d66e6646901b488bda9181b4348fbfe9783ed8a989519aea3ab6b30b1cbdf31c8da31eebf0291bc65256b24e910fe16ee109
SSDEEP 768:cu7m/5THrq+CWUoDuMmo2qFCm/9GgrOPIRzjb8gX3iRvaDUrjpDOgiX3BDZUx:cu7e5TH2A2pm1b3R3bTXSnpQXxdUx
TLSH
T1DA232B003BE8C12BF2BE4F749DF26145467AF5A36603D54E1CC452DB5A23BC68A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/916-0-0x0000000075102000-0x0000000075103000-memory.dmp

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memory/916-1-0x0000000000570000-0x0000000000582000-memory.dmp

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memory/916-2-0x00000000750F0000-0x00000000758AC000-memory.dmp

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memory/916-3-0x0000000004F90000-0x000000000502C000-memory.dmp

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memory/916-8-0x00000000750F0000-0x00000000758AC000-memory.dmp

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memory/6140-12-0x0000000074F80000-0x000000007573C000-memory.dmp

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memory/6140-14-0x0000000074F80000-0x000000007573C000-memory.dmp

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