asyncrat | 33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f

Analysis

max time kernel
148s
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
04/08/2026, 00:22

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General

Target
33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
Size 45KB
Sample260804-apdw1szelf
SHA256 33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f
MD5 5b0a87db7a33844db6b5c91d8d583ed3
SHA1 57dc5ef4eb2f0a3837fff59a531e972d1206d18d
SHA512 37d30142aef44ee94a788b10f54feeef38ddc7c9c4fbeeb01c99c983564dd6232cacdeae4961cc74cf6501fb76455df408317cb424a6219097d927aa2c05bfeb
SSDEEP 768:EulCJTHESwgWUK3aGmo2q9x/NYssPJZOPIczzjbvgXiifgw+TzcMEIBDZsx:EulCJTHl42eHIf3cz3bYXLn+nvNdsx
TLSH
T1C9231A003BE8C22BF2BE4F7898F26145467AF6673603D68E1CC451D75613FC69A426EE
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

xcavengon.click:80
xcavengon.click:22
xcavengon.click:8080
xcavengon.click:8880
xcavengon.click:2052
xcavengon.click:2082
xcavengon.click:2086
xcavengon.click:2095
xcavengon.click:443
xcavengon.click:2053
xcavengon.click:2083
xcavengon.click:2087
xcavengon.click:2096
xcavengon.click:8443
www.xcavengon.click:80
www.xcavengon.click:22
www.xcavengon.click:8080
www.xcavengon.click:8880
www.xcavengon.click:2052
www.xcavengon.click:2082
www.xcavengon.click:2086
www.xcavengon.click:2095
www.xcavengon.click:443
www.xcavengon.click:2053
www.xcavengon.click:2083
www.xcavengon.click:2087
www.xcavengon.click:2096
www.xcavengon.click:8443
gh0st.xcavengon.click:80
gh0st.xcavengon.click:22
gh0st.xcavengon.click:8080
gh0st.xcavengon.click:8880
gh0st.xcavengon.click:2052
gh0st.xcavengon.click:2082
gh0st.xcavengon.click:2086
gh0st.xcavengon.click:2095
gh0st.xcavengon.click:443
gh0st.xcavengon.click:2053
gh0st.xcavengon.click:2083
gh0st.xcavengon.click:2087
gh0st.xcavengon.click:2096
gh0st.xcavengon.click:8443
fakeupdates.xcavengon.click:80
fakeupdates.xcavengon.click:22
fakeupdates.xcavengon.click:8080
fakeupdates.xcavengon.click:8880
fakeupdates.xcavengon.click:2052
fakeupdates.xcavengon.click:2082
fakeupdates.xcavengon.click:2086
fakeupdates.xcavengon.click:2095
fakeupdates.xcavengon.click:443
fakeupdates.xcavengon.click:2053
fakeupdates.xcavengon.click:2083
fakeupdates.xcavengon.click:2087
fakeupdates.xcavengon.click:2096
fakeupdates.xcavengon.click:8443
wannacry.xcavengon.click:80
wannacry.xcavengon.click:22
wannacry.xcavengon.click:8080
wannacry.xcavengon.click:8880
wannacry.xcavengon.click:2052
wannacry.xcavengon.click:2082
wannacry.xcavengon.click:2086
wannacry.xcavengon.click:2095
wannacry.xcavengon.click:443
wannacry.xcavengon.click:2053
wannacry.xcavengon.click:2083
wannacry.xcavengon.click:2087
wannacry.xcavengon.click:2096
wannacry.xcavengon.click:8443

Mutex

hz5m3dn2Ni9B

Attributes

delay
0
install
true
install_file
fgvi4q.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/0x0003000000000432-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
244	fgvi4q.exe
3676	fgvi4q.exe

Outbound SSH connection to public host 2 TTPs 4 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	pid	Process
SSH destination	7	172.67.189.217:22	244	fgvi4q.exe
SSH destination	9	104.21.10.8:22		Process not Found
SSH destination	13	172.67.189.217:22		Process not Found
SSH destination	14	104.21.10.8:22		Process not Found

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
4568	cmd.exe
1240	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	fgvi4q.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.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	fgvi4q.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4424	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
5220	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
Token: SeDebugPrivilege	244	fgvi4q.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3552 wrote to memory of 4568	3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe	88
PID 3552 wrote to memory of 1240	3552	33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe	90
PID 4568 wrote to memory of 5220	4568	cmd.exe	92
PID 1240 wrote to memory of 4424	1240	cmd.exe	93
PID 1240 wrote to memory of 3676	1240	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe
"C:\Users\Admin\AppData\Local\Temp\33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3552
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "fgvi4q" /tr '"C:\Users\Admin\AppData\Roaming\fgvi4q.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4568
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "fgvi4q" /tr '"C:\Users\Admin\AppData\Roaming\fgvi4q.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5220
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpAB3A.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1240
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4424
- - C:\Users\Admin\AppData\Roaming\fgvi4q.exe
    "C:\Users\Admin\AppData\Roaming\fgvi4q.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3676

C:\Users\Admin\AppData\Roaming\fgvi4q.exe
"C:\Users\Admin\AppData\Roaming\fgvi4q.exe"
1⤵
- Executes dropped EXE
- Outbound SSH connection to public host
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:244

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

tmpAB3A.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpAB3A.tmp.bat
Size 150B
SHA256 6c9040c3f7d4502c6bc8cd3d93f0e18ed62fb0983fb3b87478ea60b5201692ce
MD5 574753b71180204e25dfe20dfa8d7920
SHA1 0cfb51d83a46098a2cacfaf8b0888100f047fdef
SHA512 b9d58f1ee4b36437f8cb312b7aa2a591e62390d01f3d7b27128ad011fc3be3e3f5cff5c31ce6d0f6dbeb2b1610ee082602765a39a9c01e629d9b3cc743fffd77
TLSH
T1D9C02B9351C9EA0E2C85186302FBD48E91736C1D3F40BB00CF04825D22C047CF4D9345
MD5 SHA1 SHA512 TLSH

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fgvi4q.exe

Path C:\Users\Admin\AppData\Roaming\fgvi4q.exe
Size 45KB
SHA256 33a3bf49d19e10adc3db75eaebcb3ec4f45b1a131f17c6dff9f6559ce48d2c4f
MD5 5b0a87db7a33844db6b5c91d8d583ed3
SHA1 57dc5ef4eb2f0a3837fff59a531e972d1206d18d
SHA512 37d30142aef44ee94a788b10f54feeef38ddc7c9c4fbeeb01c99c983564dd6232cacdeae4961cc74cf6501fb76455df408317cb424a6219097d927aa2c05bfeb
SSDEEP 768:EulCJTHESwgWUK3aGmo2q9x/NYssPJZOPIczzjbvgXiifgw+TzcMEIBDZsx:EulCJTHl42eHIf3cz3bYXLn+nvNdsx
TLSH
T1C9231A003BE8C22BF2BE4F7898F26145467AF6673603D68E1CC451D75613FC69A426EE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/244-12-0x00000000744B0000-0x0000000074C6C000-memory.dmp

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memory/244-14-0x00000000744B0000-0x0000000074C6C000-memory.dmp

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memory/3552-0-0x0000000074632000-0x0000000074633000-memory.dmp

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memory/3552-1-0x00000000008E0000-0x00000000008F2000-memory.dmp

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memory/3552-2-0x0000000074620000-0x0000000074DDC000-memory.dmp

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memory/3552-3-0x0000000005450000-0x00000000054EC000-memory.dmp

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memory/3552-8-0x0000000074620000-0x0000000074DDC000-memory.dmp

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