asyncrat | 31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895

Analysis

max time kernel
148s
max time network
150s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
05/08/2026, 09:27

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General

Target
31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
Size 45KB
Sample260805-le39psha24
SHA256 31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895
MD5 64bd8f330784e1975aa6ce09618aaa34
SHA1 784ebd8a94cd335c0badde62d2f0b7b3fe3744a3
SHA512 20dccb4554bba5db89ac38d7ba7cec9e72d5207d3c8122ebf65ccb618a91021eed5848654029bf0c7668e996dd184eb9e3fd2ee333da88f907936f7aae11778e
SSDEEP 768:wuZ8pT1Uu4/cWUeT66mo2q1V8V1RpYEcPIazjbpgX3ixit51MkhaFo3yGBDZMx:wuZ8pT1tc2W8VDeEha3bmXSeMkhaFwdO
TLSH
T10F231A003BE9823BF2BE4F7899F26145867AF2672603D5491CC451DB5723FC68A426FE
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

viet18.org:80
viet18.org:22
viet18.org:8080
viet18.org:8880
viet18.org:2052
viet18.org:2082
viet18.org:2086
viet18.org:2095
viet18.org:443
viet18.org:2053
viet18.org:2083
viet18.org:2087
viet18.org:2096
viet18.org:8443
www.viet18.org:80
www.viet18.org:22
www.viet18.org:8080
www.viet18.org:8880
www.viet18.org:2052
www.viet18.org:2082
www.viet18.org:2086
www.viet18.org:2095
www.viet18.org:443
www.viet18.org:2053
www.viet18.org:2083
www.viet18.org:2087
www.viet18.org:2096
www.viet18.org:8443
trisis.viet18.org:80
trisis.viet18.org:22
trisis.viet18.org:8080
trisis.viet18.org:8880
trisis.viet18.org:2052
trisis.viet18.org:2082
trisis.viet18.org:2086
trisis.viet18.org:2095
trisis.viet18.org:443
trisis.viet18.org:2053
trisis.viet18.org:2083
trisis.viet18.org:2087
trisis.viet18.org:2096
trisis.viet18.org:8443
hermeticwiper.viet18.org:80
hermeticwiper.viet18.org:22
hermeticwiper.viet18.org:8080
hermeticwiper.viet18.org:8880
hermeticwiper.viet18.org:2052
hermeticwiper.viet18.org:2082
hermeticwiper.viet18.org:2086
hermeticwiper.viet18.org:2095
hermeticwiper.viet18.org:443
hermeticwiper.viet18.org:2053
hermeticwiper.viet18.org:2083
hermeticwiper.viet18.org:2087
hermeticwiper.viet18.org:2096
hermeticwiper.viet18.org:8443

Mutex

1RgXyDvbDsgv

Attributes

delay
0
install
true
install_file
jw9w.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/0x000e00000001c504-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4780	jw9w.exe
4368	jw9w.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
4596	cmd.exe
2256	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	jw9w.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jw9w.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2992	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
6108	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
Token: SeDebugPrivilege	4780	jw9w.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1420 wrote to memory of 4596	1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe	89
PID 1420 wrote to memory of 2256	1420	31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe	90
PID 4596 wrote to memory of 6108	4596	cmd.exe	93
PID 2256 wrote to memory of 2992	2256	cmd.exe	94
PID 2256 wrote to memory of 4368	2256	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe
"C:\Users\Admin\AppData\Local\Temp\31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1420
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "jw9w" /tr '"C:\Users\Admin\AppData\Roaming\jw9w.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4596
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "jw9w" /tr '"C:\Users\Admin\AppData\Roaming\jw9w.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:6108
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp3D7C.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2256
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2992
- - C:\Users\Admin\AppData\Roaming\jw9w.exe
    "C:\Users\Admin\AppData\Roaming\jw9w.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4368

C:\Users\Admin\AppData\Roaming\jw9w.exe
"C:\Users\Admin\AppData\Roaming\jw9w.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4780

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

tmp3D7C.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp3D7C.tmp.bat
Size 148B
SHA256 11a2176d8300342f9137dcd4be02cc0b570483dd308c366cfc467ce8b9f61434
MD5 6ee582212c9e6a911fc6020d47eac4a4
SHA1 3026dd5733f2b80f98cb8a945a75301d66ded2f0
SHA512 3024b33a2917b0f59aafbcfa54246317618ddfa4f7d00e99edf2a193c2f17aa990f1097dcd71f37d00a5aca768bd9fff19f4e11e7690e89c634e47f48c426207
TLSH
T107C08C62A1C6AA4E6845141302BAA48C9162A9193EC0AB00C34484192281848F49A241
MD5 SHA1 SHA512 TLSH

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jw9w.exe

Path C:\Users\Admin\AppData\Roaming\jw9w.exe
Size 45KB
SHA256 31260fe1e59ece787d5cb16f3058968d31c45a25cdb47769c356b92674b88895
MD5 64bd8f330784e1975aa6ce09618aaa34
SHA1 784ebd8a94cd335c0badde62d2f0b7b3fe3744a3
SHA512 20dccb4554bba5db89ac38d7ba7cec9e72d5207d3c8122ebf65ccb618a91021eed5848654029bf0c7668e996dd184eb9e3fd2ee333da88f907936f7aae11778e
SSDEEP 768:wuZ8pT1Uu4/cWUeT66mo2q1V8V1RpYEcPIazjbpgX3ixit51MkhaFo3yGBDZMx:wuZ8pT1tc2W8VDeEha3bmXSeMkhaFwdO
TLSH
T10F231A003BE9823BF2BE4F7899F26145867AF2672603D5491CC451DB5723FC68A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1420-0-0x0000000075192000-0x0000000075193000-memory.dmp

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memory/1420-1-0x0000000000570000-0x0000000000582000-memory.dmp

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memory/1420-2-0x0000000075180000-0x000000007593C000-memory.dmp

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memory/1420-3-0x0000000004F20000-0x0000000004FBC000-memory.dmp

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memory/1420-8-0x0000000075180000-0x000000007593C000-memory.dmp

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memory/4780-12-0x0000000075180000-0x000000007593C000-memory.dmp

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memory/4780-14-0x0000000075180000-0x000000007593C000-memory.dmp

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