asyncrat | 7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26

Analysis

max time kernel
148s
max time network
147s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
18/07/2026, 12:49

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
Size 45KB
Sample260718-p2kbwsfs7x
SHA256 7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26
MD5 f77ff1e42c730d07ef8e6954aeaa8726
SHA1 b235e92eb08c4949b3a65bf060a89281299b9b28
SHA512 1a49f3e4e446df225f876b7569f10260aae777f184522b2db2024d2eb2d7cb55194e519d2d8c8890232d7251fac93260e75c9ba647d609b9f1dd867606a6c1da
SSDEEP 768:MuLAZTnAkuSWUYzG8mo2qFQeeXKSocbbbQtN8/nPI6kzjbIgX3iyw4t9JqaWB/Ti:MuLAZTnbg2YeH2tNKA6k3bfXSRAqaWCr
TLSH
T1BA232B003BE8C12BF2BE5FB899F26145867AF2633603D98A1CC4519B5713FC686526FD
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
locky.chichgai.one:80
locky.chichgai.one:22
locky.chichgai.one:8080
locky.chichgai.one:8880
locky.chichgai.one:2052
locky.chichgai.one:2082
locky.chichgai.one:2086
locky.chichgai.one:2095
locky.chichgai.one:443
locky.chichgai.one:2053
locky.chichgai.one:2083
locky.chichgai.one:2087
locky.chichgai.one:2096
locky.chichgai.one:8443
ryuk.chichgai.one:80
ryuk.chichgai.one:22
ryuk.chichgai.one:8080
ryuk.chichgai.one:8880
ryuk.chichgai.one:2052
ryuk.chichgai.one:2082
ryuk.chichgai.one:2086
ryuk.chichgai.one:2095
ryuk.chichgai.one:443
ryuk.chichgai.one:2053
ryuk.chichgai.one:2083
ryuk.chichgai.one:2087
ryuk.chichgai.one:2096
ryuk.chichgai.one:8443
mirai.chichgai.one:80
mirai.chichgai.one:22
mirai.chichgai.one:8080
mirai.chichgai.one:8880
mirai.chichgai.one:2052
mirai.chichgai.one:2082
mirai.chichgai.one:2086
mirai.chichgai.one:2095
mirai.chichgai.one:443
mirai.chichgai.one:2053
mirai.chichgai.one:2083
mirai.chichgai.one:2087
mirai.chichgai.one:2096
mirai.chichgai.one:8443
formbook.chichgai.one:80
formbook.chichgai.one:22
formbook.chichgai.one:8080
formbook.chichgai.one:8880
formbook.chichgai.one:2052
formbook.chichgai.one:2082
formbook.chichgai.one:2086
formbook.chichgai.one:2095
formbook.chichgai.one:443
formbook.chichgai.one:2053
formbook.chichgai.one:2083
formbook.chichgai.one:2087
formbook.chichgai.one:2096
formbook.chichgai.one:8443

Mutex

CFW7mcK8EVgx

Attributes

delay
0
install
true
install_file
pu19y.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/0x000d00000001c5c9-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
1220	pu19y.exe
4344	pu19y.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
2568	cmd.exe
1960	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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pu19y.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pu19y.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.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

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
5776	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
2088	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
Token: SeDebugPrivilege	1220	pu19y.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4164 wrote to memory of 2568	4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe	89
PID 4164 wrote to memory of 1960	4164	7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe	90
PID 2568 wrote to memory of 2088	2568	cmd.exe	93
PID 1960 wrote to memory of 5776	1960	cmd.exe	94
PID 1960 wrote to memory of 4344	1960	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe
"C:\Users\Admin\AppData\Local\Temp\7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4164
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "pu19y" /tr '"C:\Users\Admin\AppData\Roaming\pu19y.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2568
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "pu19y" /tr '"C:\Users\Admin\AppData\Roaming\pu19y.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2088
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp478E.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1960
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:5776
- - C:\Users\Admin\AppData\Roaming\pu19y.exe
    "C:\Users\Admin\AppData\Roaming\pu19y.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4344

C:\Users\Admin\AppData\Roaming\pu19y.exe
"C:\Users\Admin\AppData\Roaming\pu19y.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1220

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

Replay Monitor

Loading Replay Monitor...

Downloads

tmp478E.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp478E.tmp.bat
Size 149B
SHA256 52c462ae719bc0ed7f0691e7d547925bf1c9ff1380af9df7621c7262e9d18875
MD5 ad7893f537364d275b52cc09b7ca9854
SHA1 ad19e766333c90c2cfd876e1c693438c3e188886
SHA512 563555d348bb5225fe9fb78f6f3a7fca2e4d1227c7f8aadc721efd076732b6705919f88892ff98089589ade55fd4e7bf74ef6e1577686f90b50a5a677fd55596
TLSH
T174C08C5291C5EA0E2C05249302FA998DA17268693E40AB00830444892280848E09A281
MD5 SHA1 SHA512 TLSH

Submit Download

pu19y.exe

Path C:\Users\Admin\AppData\Roaming\pu19y.exe
Size 45KB
SHA256 7f4d44fdec63d37b8e67d268b8b5e063528335d43894dfda71b45e238f079f26
MD5 f77ff1e42c730d07ef8e6954aeaa8726
SHA1 b235e92eb08c4949b3a65bf060a89281299b9b28
SHA512 1a49f3e4e446df225f876b7569f10260aae777f184522b2db2024d2eb2d7cb55194e519d2d8c8890232d7251fac93260e75c9ba647d609b9f1dd867606a6c1da
SSDEEP 768:MuLAZTnAkuSWUYzG8mo2qFQeeXKSocbbbQtN8/nPI6kzjbIgX3iyw4t9JqaWB/Ti:MuLAZTnbg2YeH2tNKA6k3bfXSRAqaWCr
TLSH
T1BA232B003BE8C12BF2BE5FB899F26145867AF2633603D98A1CC4519B5713FC686526FD
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1220-12-0x00000000746C0000-0x0000000074E7C000-memory.dmp

Download

memory/1220-14-0x00000000746C0000-0x0000000074E7C000-memory.dmp

Download

memory/4164-0-0x0000000074872000-0x0000000074873000-memory.dmp

Download

memory/4164-1-0x00000000007F0000-0x0000000000802000-memory.dmp

Download

memory/4164-2-0x0000000074860000-0x000000007501C000-memory.dmp

Download

memory/4164-3-0x0000000005370000-0x000000000540C000-memory.dmp

Download

memory/4164-8-0x0000000074860000-0x000000007501C000-memory.dmp

Download