asyncrat | f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347

Analysis

max time kernel
148s
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, 17:06

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General

Target
f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
Size 45KB
Sample260831-vmd48adn2s
SHA256 f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347
MD5 b8d8b692762c9117604e7400196bfe17
SHA1 b644e716f444559960f1c24095be90a72e00fed1
SHA512 a287d89ab864d80a01f9478efa66f1df10c0de684bb84ee1eb30076466d375dff4c18935088c8ebc10893ac70d035835256ce8c215745c19b886be1da810fd92
SSDEEP 768:suJdpTP3tcsWUODmqmo2qV2maPcl83APITpzjbpgX3ibNp2UrCF2WTZZzgT4ToBk:suJdpTPdI2HfcS3lTp3bmXSZsJ2gNgTS
TLSH
T1DB2339003BE8812BF2BE4F74A9F26145867AF2637603D64E1CC441DB4623FC69A426FD
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
locky.sexvietnam.mobi:80
locky.sexvietnam.mobi:22
locky.sexvietnam.mobi:8080
locky.sexvietnam.mobi:8880
locky.sexvietnam.mobi:2052
locky.sexvietnam.mobi:2082
locky.sexvietnam.mobi:2086
locky.sexvietnam.mobi:2095
locky.sexvietnam.mobi:443
locky.sexvietnam.mobi:2053
locky.sexvietnam.mobi:2083
locky.sexvietnam.mobi:2087
locky.sexvietnam.mobi:2096
locky.sexvietnam.mobi:8443
iloveyou.sexvietnam.mobi:80
iloveyou.sexvietnam.mobi:22
iloveyou.sexvietnam.mobi:8080
iloveyou.sexvietnam.mobi:8880
iloveyou.sexvietnam.mobi:2052
iloveyou.sexvietnam.mobi:2082
iloveyou.sexvietnam.mobi:2086
iloveyou.sexvietnam.mobi:2095
iloveyou.sexvietnam.mobi:443
iloveyou.sexvietnam.mobi:2053
iloveyou.sexvietnam.mobi:2083
iloveyou.sexvietnam.mobi:2087
iloveyou.sexvietnam.mobi:2096
iloveyou.sexvietnam.mobi:8443

Mutex

3w1PlvCmWq7s

Attributes

delay
0
install
true
install_file
xl04e3xu.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/0x000e00000001c516-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
6044	xl04e3xu.exe
2740	xl04e3xu.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	19	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
4284	cmd.exe
4324	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	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	xl04e3xu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xl04e3xu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4596	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
5700	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
Token: SeDebugPrivilege	6044	xl04e3xu.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4132 wrote to memory of 4284	4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe	89
PID 4132 wrote to memory of 4324	4132	f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe	90
PID 4284 wrote to memory of 5700	4284	cmd.exe	93
PID 4324 wrote to memory of 4596	4324	cmd.exe	94
PID 4324 wrote to memory of 2740	4324	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe
"C:\Users\Admin\AppData\Local\Temp\f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4132
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "xl04e3xu" /tr '"C:\Users\Admin\AppData\Roaming\xl04e3xu.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4284
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "xl04e3xu" /tr '"C:\Users\Admin\AppData\Roaming\xl04e3xu.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5700
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpFC8B.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4324
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4596
- - C:\Users\Admin\AppData\Roaming\xl04e3xu.exe
    "C:\Users\Admin\AppData\Roaming\xl04e3xu.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2740

C:\Users\Admin\AppData\Roaming\xl04e3xu.exe
"C:\Users\Admin\AppData\Roaming\xl04e3xu.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:6044

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

tmpFC8B.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpFC8B.tmp.bat
Size 152B
SHA256 0b7c59bfd5592b80baca785c1e5f9b44f5049b02ca760013a50b151fb3e6a3c7
MD5 fe25278b7372c728fd55d5a1f8f8bce5
SHA1 d1b1e1dd2cd2f990a5d1ed1e6bf85d1a20e39089
SHA512 a7a161b0bec77e0c5207f58be2b80af25fe17961b3acd59b58cf61a21c540bb1b80ce576ac23fbfc5544c56a59700b9ca9f2a5ba6f4c3a4b8de1e7d7c51db544
TLSH
T143C02B4391C5FA1F6E05942302FAE58DD5726C193F40BF10C34C8C1E628195CF0D9345
MD5 SHA1 SHA512 TLSH

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xl04e3xu.exe

Path C:\Users\Admin\AppData\Roaming\xl04e3xu.exe
Size 45KB
SHA256 f6cd080aff46307df61ea4448577adfe1aa369c6bc302bcee976422445957347
MD5 b8d8b692762c9117604e7400196bfe17
SHA1 b644e716f444559960f1c24095be90a72e00fed1
SHA512 a287d89ab864d80a01f9478efa66f1df10c0de684bb84ee1eb30076466d375dff4c18935088c8ebc10893ac70d035835256ce8c215745c19b886be1da810fd92
SSDEEP 768:suJdpTP3tcsWUODmqmo2qV2maPcl83APITpzjbpgX3ibNp2UrCF2WTZZzgT4ToBk:suJdpTPdI2HfcS3lTp3bmXSZsJ2gNgTS
TLSH
T1DB2339003BE8812BF2BE4F74A9F26145867AF2637603D64E1CC441DB4623FC69A426FD
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/4132-0-0x00000000751E2000-0x00000000751E3000-memory.dmp

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memory/4132-1-0x0000000000270000-0x0000000000282000-memory.dmp

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memory/4132-2-0x00000000751D0000-0x000000007598C000-memory.dmp

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memory/4132-3-0x0000000004DD0000-0x0000000004E6C000-memory.dmp

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memory/4132-8-0x00000000751D0000-0x000000007598C000-memory.dmp

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memory/6044-12-0x0000000075060000-0x000000007581C000-memory.dmp

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memory/6044-14-0x0000000075060000-0x000000007581C000-memory.dmp

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