asyncrat | af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72

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
04/08/2026, 16:20

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General

Target
af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
Size 45KB
Sample260804-ts5cxssvax
SHA256 af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72
MD5 a25043d419b166acc51b67c7e1537774
SHA1 537b89ef8264322a1f6b7138922f6dd960cd1386
SHA512 ecaf0ae34f8b9b1f4531a763ccc2033ed3b93484d4d4cbf525ef4df1ca74d513d18ce77651370af6628939493ef99ea66ef47673d14ee4c20eb1525b2f58194d
SSDEEP 768:cu6RaepTPYzbs8WU+Xaamo2q1iBzvQjx7PIrAjb5gX3iRjcTVzpePTiiBDZUx:cu6YepTPso2L1VrobWXSWTVzper/dUx
TLSH
T17D231A003BE9C13BF2BE5FB8ACF26145867AF6732603D5492CC451D75623FC686426EA
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
locky.xcavengon.click:80
locky.xcavengon.click:22
locky.xcavengon.click:8080
locky.xcavengon.click:8880
locky.xcavengon.click:2052
locky.xcavengon.click:2082
locky.xcavengon.click:2086
locky.xcavengon.click:2095
locky.xcavengon.click:443
locky.xcavengon.click:2053
locky.xcavengon.click:2083
locky.xcavengon.click:2087
locky.xcavengon.click:2096
locky.xcavengon.click:8443
cl0p.xcavengon.click:80
cl0p.xcavengon.click:22
cl0p.xcavengon.click:8080
cl0p.xcavengon.click:8880
cl0p.xcavengon.click:2052
cl0p.xcavengon.click:2082
cl0p.xcavengon.click:2086
cl0p.xcavengon.click:2095
cl0p.xcavengon.click:443
cl0p.xcavengon.click:2053
cl0p.xcavengon.click:2083
cl0p.xcavengon.click:2087
cl0p.xcavengon.click:2096
cl0p.xcavengon.click:8443
remcos.xcavengon.click:80
remcos.xcavengon.click:22
remcos.xcavengon.click:8080
remcos.xcavengon.click:8880
remcos.xcavengon.click:2052
remcos.xcavengon.click:2082
remcos.xcavengon.click:2086
remcos.xcavengon.click:2095
remcos.xcavengon.click:443
remcos.xcavengon.click:2053
remcos.xcavengon.click:2083
remcos.xcavengon.click:2087
remcos.xcavengon.click:2096
remcos.xcavengon.click:8443

Mutex

xxA3q8CsVVR0

Attributes

delay
0
install
true
install_file
odyqylcd.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/0x001700000001c485-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
828	odyqylcd.exe
2900	odyqylcd.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
SSH destination	5	172.67.189.217:22
SSH destination	8	104.21.10.8:22
SSH destination	16	172.67.189.217:22
SSH destination	18	104.21.10.8:22

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
4276	cmd.exe
2472	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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	odyqylcd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	odyqylcd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4224	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
720	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4260 wrote to memory of 4276	4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe	89
PID 4260 wrote to memory of 2472	4260	af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe	91
PID 4276 wrote to memory of 720	4276	cmd.exe	93
PID 2472 wrote to memory of 4224	2472	cmd.exe	94
PID 2472 wrote to memory of 2900	2472	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe
"C:\Users\Admin\AppData\Local\Temp\af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4260
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "odyqylcd" /tr '"C:\Users\Admin\AppData\Roaming\odyqylcd.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4276
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "odyqylcd" /tr '"C:\Users\Admin\AppData\Roaming\odyqylcd.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:720
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp699D.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2472
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4224
- - C:\Users\Admin\AppData\Roaming\odyqylcd.exe
    "C:\Users\Admin\AppData\Roaming\odyqylcd.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2900

C:\Users\Admin\AppData\Roaming\odyqylcd.exe
"C:\Users\Admin\AppData\Roaming\odyqylcd.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:828

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

tmp699D.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp699D.tmp.bat
Size 152B
SHA256 555de9472a1be2c7041bc9e986f6d00d7a66057bd216eb12e5a2a65edac88edc
MD5 99958293e5713c6db00cd35448e34d01
SHA1 0828809a16d8e8af519f80e8ff19dce825227d48
SHA512 3d0b97db97ee45d381c14bff3fe8afb6f53082c96c705cf922d7606c6a8223fa0a2ac40f262c52deaca52419756168c3bce41113a4540d28e66510cf619f47af
TLSH
T1F4C02B4291C9EA0F6C0614231EFBE58CD1727C1D3F40BB10CF04482E52C0598F0E9385
MD5 SHA1 SHA512 TLSH

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odyqylcd.exe

Path C:\Users\Admin\AppData\Roaming\odyqylcd.exe
Size 45KB
SHA256 af952e5fa83f809eb2f4f94748a6856537b045917f23ac78bc06550d939fbc72
MD5 a25043d419b166acc51b67c7e1537774
SHA1 537b89ef8264322a1f6b7138922f6dd960cd1386
SHA512 ecaf0ae34f8b9b1f4531a763ccc2033ed3b93484d4d4cbf525ef4df1ca74d513d18ce77651370af6628939493ef99ea66ef47673d14ee4c20eb1525b2f58194d
SSDEEP 768:cu6RaepTPYzbs8WU+Xaamo2q1iBzvQjx7PIrAjb5gX3iRjcTVzpePTiiBDZUx:cu6YepTPso2L1VrobWXSWTVzper/dUx
TLSH
T17D231A003BE9C13BF2BE5FB8ACF26145867AF6732603D5492CC451D75623FC686426EA
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/828-12-0x0000000074782000-0x0000000074783000-memory.dmp

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memory/828-14-0x0000000074782000-0x0000000074783000-memory.dmp

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memory/4260-0-0x00000000750A2000-0x00000000750A3000-memory.dmp

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memory/4260-1-0x0000000000A60000-0x0000000000A72000-memory.dmp

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memory/4260-2-0x0000000075090000-0x000000007584C000-memory.dmp

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memory/4260-3-0x00000000054B0000-0x000000000554C000-memory.dmp

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memory/4260-8-0x0000000075090000-0x000000007584C000-memory.dmp

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