Analysis
- max time kernel
148s - max time network
143s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260706-en - resource tags
- submitted
09/07/2026, 08:11
General
- Target seygex.exe
- Size 47KB
- Sample260709-j3pp4sey2p
- SHA256 9edc6820885f0d820b3454bbc9ae19ec0c314c384ebfb9e29aa93248bbb4d902
Malware Config
Extracted
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asyncrat
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0.5.8
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Default
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cristalylavisamexico.com.mx:8443
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cristalylavisamexico.com.mx:81
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cristalylavisamexico.com.mx:7878
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cristalylavisamexico.com.mx:8787
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cristalylavisamexico.com.mx:6789
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YfPsSqmRrfqP
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delay
3
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install
true
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install_file
svchost.exe
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install_folder
%AppData%
Signatures
- Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Async RAT payload 1 IoCs
- Executes dropped EXE 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
- Delays execution with timeout.exe 1 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 29 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\seygex.exe"C:\Users\Admin\AppData\Local\Temp\seygex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpFF2B.tmp.bat""2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout 33⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
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C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
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C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\sihost.exesihost.exe1⤵
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C:\Windows\explorer.exeexplorer.exe /LOADSAVEDWINDOWS2⤵
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C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca1⤵
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
prep_Activatable Class_Hermes_perf.cache
tmpFF2B.tmp.bat
svchost.exe
memory/5020-35-0x00000251801E0000-0x00000251802E0000-memory.dmp
memory/5020-182-0x0000025180440000-0x0000025180623000-memory.dmp
memory/5020-45-0x0000025183E80000-0x0000025183EA0000-memory.dmp
memory/5020-41-0x0000025183C20000-0x0000025183C40000-memory.dmp
memory/5020-43-0x0000025184040000-0x0000025184140000-memory.dmp
memory/5020-77-0x0000025194310000-0x0000025194330000-memory.dmp
memory/5020-36-0x00000251801E0000-0x00000251802E0000-memory.dmp
memory/5116-8-0x0000000074FF0000-0x00000000757AC000-memory.dmp
memory/5116-0-0x0000000075002000-0x0000000075003000-memory.dmp
memory/5116-3-0x0000000005560000-0x00000000055FC000-memory.dmp
memory/5116-2-0x0000000074FF0000-0x00000000757AC000-memory.dmp
memory/5116-1-0x00000000009D0000-0x00000000009E2000-memory.dmp
memory/5984-14-0x0000000074FF0000-0x00000000757AC000-memory.dmp
memory/5984-12-0x0000000074FF0000-0x00000000757AC000-memory.dmp