asyncrat | aac3c2253f66894d743e9989fbd4b10aded43370b2f8c8e7b8648e1a7288743f

Analysis

max time kernel
148s
max time network
145s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260629-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
02/07/2026, 02:04

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
reyhfgh.exe
Size 45KB
Sample260702-chpfaaaz7w
SHA256 aac3c2253f66894d743e9989fbd4b10aded43370b2f8c8e7b8648e1a7288743f
MD5 53ac9981546f39697e69501e7be6af4c
SHA1 3bdc06994c18808ae63530dc0ffae795de659b44
SHA512 40a572292d76002978d52de3e76cc8855474ebce18b6fa2decf4f63e3c808afa1f07a81886e1b4a52cda9b4204518f740059011e4b7eaf053f8bb5f0d1149f9f
SSDEEP 768:tuyZNTAoZjRWUJd9bmo2qLN9YikqHztOPIUzjbjgE3iHIoRMZiQ5yNoIBDZKx:tuyZNTAGL2CalK3U3b8ES9MjudKx
TLSH
T129232B003BE9C22BF2BE4F78ACF26245467AF1633603D64A1CC451975713BC69A526FE
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

admin defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Admin

sexdeo.net:80
sexdeo.net:443
www.sexdeo.net:80
www.sexdeo.net:443
ssh.sexdeo.net:80
ssh.sexdeo.net:443

Mutex

gJI8D9k7iJxw

Attributes

delay
3
install
true
install_file
reyhfgh.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/0x000e00000001c560-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
3344	reyhfgh.exe
5216	reyhfgh.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	reyhfgh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reyhfgh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reyhfgh.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
2644	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
6080	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe
6100	reyhfgh.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	6100	reyhfgh.exe
Token: SeDebugPrivilege	3344	reyhfgh.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 6100 wrote to memory of 1128	6100	reyhfgh.exe	88
PID 6100 wrote to memory of 6036	6100	reyhfgh.exe	90
PID 6036 wrote to memory of 2644	6036	cmd.exe	93
PID 1128 wrote to memory of 6080	1128	cmd.exe	92
PID 6036 wrote to memory of 5216	6036	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\reyhfgh.exe
"C:\Users\Admin\AppData\Local\Temp\reyhfgh.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:6100
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "reyhfgh" /tr '"C:\Users\Admin\AppData\Roaming\reyhfgh.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1128
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "reyhfgh" /tr '"C:\Users\Admin\AppData\Roaming\reyhfgh.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:6080
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp3F61.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:6036
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2644
- - C:\Users\Admin\AppData\Roaming\reyhfgh.exe
    "C:\Users\Admin\AppData\Roaming\reyhfgh.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5216

C:\Users\Admin\AppData\Roaming\reyhfgh.exe
"C:\Users\Admin\AppData\Roaming\reyhfgh.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3344

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2840
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  PID:352

C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
1⤵
PID:4996

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:5220

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

Replay Monitor

Loading Replay Monitor...

Downloads

prep_Activatable Class_Hermes_perf.cache

Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
Size 607B
SHA256 be6b74e52e5eef1f1c27c0976bf3bf1bfa99958c00bbef2898a602f691be6dae
MD5 76b78ed7ff6273215b134d6a6488035d
SHA1 9e7a11ffb68d027036302eccd4c22315054843a9
SHA512 9919504cd4d8c0757abff8da4bbad1c4b6532f81d290c736fc5624ef66de45e6a9e29a8290854ae554d5bdfc5291f1ea81ae62d1b25846bfbcf1515e2ec3e4f1
TLSH
T174F0DC53CBD6536BD527223CC8E207E1FA70E2719E81212386106F2D6CB77241E474B4
MD5 SHA1 SHA512 TLSH

Submit Download

tmp3F61.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp3F61.tmp.bat
Size 151B
SHA256 e3624599916ddbce1282c8ed3395b7d38be4c788a54c05ec6ed8988ad8956fcc
MD5 dc0a68a72628590df6f86fb12e2fd409
SHA1 12721a1d9c175c9465a8a66bd9441586e5ba0f86
SHA512 1b8e8da7855fcc432daba2119f2af63767a1dfecc805c6003e3e58313a2a148fbe9087acf0958f64de19b3382d5da60bcaac2f7a3346725d961c0a2e52994036
TLSH
T18AC08C4251C9AA0E3806149312FBD48EA1766E193E80BB808304881A3280849E09A346
MD5 SHA1 SHA512 TLSH

Submit Download

reyhfgh.exe

Path C:\Users\Admin\AppData\Roaming\reyhfgh.exe
Size 45KB
SHA256 aac3c2253f66894d743e9989fbd4b10aded43370b2f8c8e7b8648e1a7288743f
MD5 53ac9981546f39697e69501e7be6af4c
SHA1 3bdc06994c18808ae63530dc0ffae795de659b44
SHA512 40a572292d76002978d52de3e76cc8855474ebce18b6fa2decf4f63e3c808afa1f07a81886e1b4a52cda9b4204518f740059011e4b7eaf053f8bb5f0d1149f9f
SSDEEP 768:tuyZNTAoZjRWUJd9bmo2qLN9YikqHztOPIUzjbjgE3iHIoRMZiQ5yNoIBDZKx:tuyZNTAGL2CalK3U3b8ES9MjudKx
TLSH
T129232B003BE9C22BF2BE4F78ACF26245467AF1633603D64A1CC451975713BC69A526FE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3344-12-0x0000000074D00000-0x00000000754BC000-memory.dmp

Download

memory/3344-14-0x0000000074D00000-0x00000000754BC000-memory.dmp

Download

memory/4996-37-0x00000159001E0000-0x00000159002E0000-memory.dmp

Download

memory/4996-42-0x0000015902A30000-0x0000015902A50000-memory.dmp

Download

memory/4996-81-0x0000015914290000-0x00000159142B0000-memory.dmp

Download

memory/4996-44-0x0000015902E50000-0x0000015902F50000-memory.dmp

Download

memory/4996-56-0x0000015902E10000-0x0000015902E30000-memory.dmp

Download

memory/6100-3-0x0000000005080000-0x000000000511C000-memory.dmp

Download

memory/6100-2-0x0000000074D00000-0x00000000754BC000-memory.dmp

Download

memory/6100-9-0x0000000074D00000-0x00000000754BC000-memory.dmp

Download

memory/6100-0-0x0000000074D12000-0x0000000074D13000-memory.dmp

Download

memory/6100-1-0x0000000000590000-0x00000000005A2000-memory.dmp

Download