asyncrat | 67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a

Analysis

max time kernel
148s
max time network
148s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
04/08/2026, 09:47

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General

Target
67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
Size 45KB
Sample260804-lsb3dasxdt
SHA256 67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a
MD5 b004c6b6058cd318366233e184c3983c
SHA1 8e03b13dd90c6c2ee2b900f9a10170833de77415
SHA512 1e8a3f509f3fe9d87080692bea1bdbdd6439b385e0a65111e6255f3e1619c18b5b15f4f554de5ba591361c8f6707eb01ee1ed2fdbd82f3f633f05436485c720b
SSDEEP 768:wuZ8pT1Uu4/cWUeT66mo2q18Ao0p54mcPIEzjbpgX3io0+uUcySgpscBDZMx:wuZ8pT1tc2HADv4mhE3bmXSo0apdMx
TLSH
T18D233B003BE9823BF2BE4F7898F26145467AF2672603D64A1CC441DB5623FC6DA426FD
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

viet69i.com:80
viet69i.com:22
viet69i.com:8080
viet69i.com:8880
viet69i.com:2052
viet69i.com:2082
viet69i.com:2086
viet69i.com:2095
viet69i.com:443
viet69i.com:2053
viet69i.com:2083
viet69i.com:2087
viet69i.com:2096
viet69i.com:8443
www.viet69i.com:80
www.viet69i.com:22
www.viet69i.com:8080
www.viet69i.com:8880
www.viet69i.com:2052
www.viet69i.com:2082
www.viet69i.com:2086
www.viet69i.com:2095
www.viet69i.com:443
www.viet69i.com:2053
www.viet69i.com:2083
www.viet69i.com:2087
www.viet69i.com:2096
www.viet69i.com:8443
malware.viet69i.com:80
malware.viet69i.com:22
malware.viet69i.com:8080
malware.viet69i.com:8880
malware.viet69i.com:2052
malware.viet69i.com:2082
malware.viet69i.com:2086
malware.viet69i.com:2095
malware.viet69i.com:443
malware.viet69i.com:2053
malware.viet69i.com:2083
malware.viet69i.com:2087
malware.viet69i.com:2096
malware.viet69i.com:8443
conti.viet69i.com:80
conti.viet69i.com:22
conti.viet69i.com:8080
conti.viet69i.com:8880
conti.viet69i.com:2052
conti.viet69i.com:2082
conti.viet69i.com:2086
conti.viet69i.com:2095
conti.viet69i.com:443
conti.viet69i.com:2053
conti.viet69i.com:2083
conti.viet69i.com:2087
conti.viet69i.com:2096
conti.viet69i.com:8443

Mutex

TiNdOKwYQmbA

Attributes

delay
0
install
true
install_file
gbqy.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/0x000e00000001c538-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4308	gbqy.exe
2460	gbqy.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
4928	cmd.exe
1856	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	gbqy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gbqy.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2436	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
2172	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
Token: SeDebugPrivilege	4308	gbqy.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3428 wrote to memory of 1856	3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe	89
PID 3428 wrote to memory of 4928	3428	67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe	91
PID 1856 wrote to memory of 2172	1856	cmd.exe	93
PID 4928 wrote to memory of 2436	4928	cmd.exe	94
PID 4928 wrote to memory of 2460	4928	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe
"C:\Users\Admin\AppData\Local\Temp\67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3428
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "gbqy" /tr '"C:\Users\Admin\AppData\Roaming\gbqy.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1856
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "gbqy" /tr '"C:\Users\Admin\AppData\Roaming\gbqy.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2172
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4116.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4928
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2436
- - C:\Users\Admin\AppData\Roaming\gbqy.exe
    "C:\Users\Admin\AppData\Roaming\gbqy.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2460

C:\Users\Admin\AppData\Roaming\gbqy.exe
"C:\Users\Admin\AppData\Roaming\gbqy.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4308

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

tmp4116.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp4116.tmp.bat
Size 148B
SHA256 d2c097539b9d6f677e8a033850349b27ebee8534bf4cb768a9e8277660b9e0f0
MD5 3acbdba0ef07f9e2e118b4f332fde630
SHA1 b4d6c1800b6c9ac80464882183541e6eec1ac468
SHA512 2a9b3b5b736eb992c9373f36fdb07a321264207516f8dfb000bcfbd0f13c458be11ad72bc9c489812b3a892b1f0e3efe6dbb5dbe3fca3d69efe0060895c9888f
TLSH
T1D9C02B5296C5EA4F7805245303FAD49EB2776C593F84FF00C704404D129086CF0D9381
MD5 SHA1 SHA512 TLSH

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gbqy.exe

Path C:\Users\Admin\AppData\Roaming\gbqy.exe
Size 45KB
SHA256 67e771c84d2f3d12e5d637b953a1cca4389c27df5616981ce2a3ce9426c2fe2a
MD5 b004c6b6058cd318366233e184c3983c
SHA1 8e03b13dd90c6c2ee2b900f9a10170833de77415
SHA512 1e8a3f509f3fe9d87080692bea1bdbdd6439b385e0a65111e6255f3e1619c18b5b15f4f554de5ba591361c8f6707eb01ee1ed2fdbd82f3f633f05436485c720b
SSDEEP 768:wuZ8pT1Uu4/cWUeT66mo2q18Ao0p54mcPIEzjbpgX3io0+uUcySgpscBDZMx:wuZ8pT1tc2HADv4mhE3bmXSo0apdMx
TLSH
T18D233B003BE9823BF2BE4F7898F26145467AF2672603D64A1CC441DB5623FC6DA426FD
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/3428-0-0x0000000074C62000-0x0000000074C63000-memory.dmp

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memory/3428-1-0x0000000000E20000-0x0000000000E32000-memory.dmp

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memory/3428-2-0x0000000074C50000-0x000000007540C000-memory.dmp

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memory/3428-3-0x0000000005840000-0x00000000058DC000-memory.dmp

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memory/3428-8-0x0000000074C50000-0x000000007540C000-memory.dmp

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memory/4308-12-0x0000000074A60000-0x000000007521C000-memory.dmp

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memory/4308-14-0x0000000074A60000-0x000000007521C000-memory.dmp

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