asyncrat | 4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361

Analysis

max time kernel
148s
max time network
155s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
17/07/2026, 15:17

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General

Target
4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
Size 45KB
Sample260717-sn97yah17t
SHA256 4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361
MD5 3104bd56481aa2576b4df0d3b4353465
SHA1 7779edd6314ac8712f6b888994a130639f6009f5
SHA512 aac82620de9359489d338e1726a0686b45a925d6c47d06c515f44cd81b12f1c67c1f5c4a767aad8cf3032fba1cc6f35a923ef9e4dd6ac485779b0ffd54a42bca
SSDEEP 768:8uuSpTg7GBoWUSH6+mo2qYNCqtTtoPIjzjbSgX3iP9e/eC4hWvkHVnBDZ0x:8uuSpTgyf2ll3j3bVXSP9e/8MvkHLd0x
TLSH
T19A231B0037E9812BF2BE4F78A9F26245867AB5633A03D54D1CC441DB5623FC6DA426FE
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

chichgai.one:80
chichgai.one:22
chichgai.one:8080
chichgai.one:8880
chichgai.one:2052
chichgai.one:2082
chichgai.one:2086
chichgai.one:2095
chichgai.one:443
chichgai.one:2053
chichgai.one:2083
chichgai.one:2087
chichgai.one:2096
chichgai.one:8443
www.chichgai.one:80
www.chichgai.one:22
www.chichgai.one:8080
www.chichgai.one:8880
www.chichgai.one:2052
www.chichgai.one:2082
www.chichgai.one:2086
www.chichgai.one:2095
www.chichgai.one:443
www.chichgai.one:2053
www.chichgai.one:2083
www.chichgai.one:2087
www.chichgai.one:2096
www.chichgai.one:8443
trickbot.chichgai.one:80
trickbot.chichgai.one:22
trickbot.chichgai.one:8080
trickbot.chichgai.one:8880
trickbot.chichgai.one:2052
trickbot.chichgai.one:2082
trickbot.chichgai.one:2086
trickbot.chichgai.one:2095
trickbot.chichgai.one:443
trickbot.chichgai.one:2053
trickbot.chichgai.one:2083
trickbot.chichgai.one:2087
trickbot.chichgai.one:2096
trickbot.chichgai.one:8443
remcos.chichgai.one:80
remcos.chichgai.one:22
remcos.chichgai.one:8080
remcos.chichgai.one:8880
remcos.chichgai.one:2052
remcos.chichgai.one:2082
remcos.chichgai.one:2086
remcos.chichgai.one:2095
remcos.chichgai.one:443
remcos.chichgai.one:2053
remcos.chichgai.one:2083
remcos.chichgai.one:2087
remcos.chichgai.one:2096
remcos.chichgai.one:8443
darkside.chichgai.one:80
darkside.chichgai.one:22
darkside.chichgai.one:8080
darkside.chichgai.one:8880
darkside.chichgai.one:2052
darkside.chichgai.one:2082
darkside.chichgai.one:2086
darkside.chichgai.one:2095
darkside.chichgai.one:443
darkside.chichgai.one:2053
darkside.chichgai.one:2083
darkside.chichgai.one:2087
darkside.chichgai.one:2096
darkside.chichgai.one:8443
nimda.chichgai.one:80
nimda.chichgai.one:22
nimda.chichgai.one:8080
nimda.chichgai.one:8880
nimda.chichgai.one:2052
nimda.chichgai.one:2082
nimda.chichgai.one:2086
nimda.chichgai.one:2095
nimda.chichgai.one:443
nimda.chichgai.one:2053
nimda.chichgai.one:2083
nimda.chichgai.one:2087
nimda.chichgai.one:2096
nimda.chichgai.one:8443

Mutex

uqPq6UbsftuB

Attributes

delay
0
install
true
install_file
oc6n40.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/0x000f00000001c56b-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
1720	oc6n40.exe
4144	oc6n40.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	oc6n40.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	oc6n40.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2236	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
1160	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4960 wrote to memory of 4412	4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe	86
PID 4960 wrote to memory of 1660	4960	4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe	88
PID 1660 wrote to memory of 2236	1660	cmd.exe	90
PID 4412 wrote to memory of 1160	4412	cmd.exe	91
PID 1660 wrote to memory of 4144	1660	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe
"C:\Users\Admin\AppData\Local\Temp\4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4960
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "oc6n40" /tr '"C:\Users\Admin\AppData\Roaming\oc6n40.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4412
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "oc6n40" /tr '"C:\Users\Admin\AppData\Roaming\oc6n40.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1160
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpDCCA.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1660
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2236
- - C:\Users\Admin\AppData\Roaming\oc6n40.exe
    "C:\Users\Admin\AppData\Roaming\oc6n40.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4144

C:\Users\Admin\AppData\Roaming\oc6n40.exe
"C:\Users\Admin\AppData\Roaming\oc6n40.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1720

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

tmpDCCA.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpDCCA.tmp.bat
Size 150B
SHA256 557c5e0e812fa61a142a591c4cbfd7c224040a65de60151a3c44f56bdda5bf02
MD5 b0412b96af6d4f01634bd9989b754b14
SHA1 4935f741ff3d8337821b25b042691afc34f9c258
SHA512 41e5a660c546c9e96b3403b3dae56b7e9655cef3ade2bbd5171eb83a012c1eee7bf5f1e4aa8169b02761383b8a98a3e7f56571ba9704e4492d2ada75b5f8f716
TLSH
T1F2C02B43A1C5EA1E2905242312FFD4CD91B2AC2A3F40BF00CB14844D6280898F0D9381
MD5 SHA1 SHA512 TLSH

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oc6n40.exe

Path C:\Users\Admin\AppData\Roaming\oc6n40.exe
Size 45KB
SHA256 4b30a36854c952ae657f84a02722864cdb11316de512678aff166cbb3035a361
MD5 3104bd56481aa2576b4df0d3b4353465
SHA1 7779edd6314ac8712f6b888994a130639f6009f5
SHA512 aac82620de9359489d338e1726a0686b45a925d6c47d06c515f44cd81b12f1c67c1f5c4a767aad8cf3032fba1cc6f35a923ef9e4dd6ac485779b0ffd54a42bca
SSDEEP 768:8uuSpTg7GBoWUSH6+mo2qYNCqtTtoPIjzjbSgX3iP9e/eC4hWvkHVnBDZ0x:8uuSpTgyf2ll3j3bVXSP9e/8MvkHLd0x
TLSH
T19A231B0037E9812BF2BE4F78A9F26245867AB5633A03D54D1CC441DB5623FC6DA426FE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1720-12-0x0000000074830000-0x0000000074FEC000-memory.dmp

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memory/1720-14-0x0000000074830000-0x0000000074FEC000-memory.dmp

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memory/4960-0-0x0000000074842000-0x0000000074843000-memory.dmp

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memory/4960-1-0x0000000000DA0000-0x0000000000DB2000-memory.dmp

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memory/4960-2-0x0000000074830000-0x0000000074FEC000-memory.dmp

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memory/4960-3-0x0000000005990000-0x0000000005A2C000-memory.dmp

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memory/4960-9-0x0000000074830000-0x0000000074FEC000-memory.dmp

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