Analysis
- max time kernel
148s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260706-en - resource tags
- submitted
07/07/2026, 11:00
General
- Target 9d99786be03e8f4bce864788cfd74780a5c301d7ac13ec607c6d8e2a2232075e.exe
- Size 45KB
- Sample260707-m31ddsgv9v
- SHA256 9d99786be03e8f4bce864788cfd74780a5c301d7ac13ec607c6d8e2a2232075e
Malware Config
Extracted
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asyncrat
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0.5.8
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Default
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103.109.100.136:80
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103.109.100.136:22
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103.109.100.136:8080
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103.109.100.136:8880
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103.109.100.136:2052
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103.109.100.136:2082
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103.109.100.136:2086
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103.109.100.136:2095
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103.109.100.136:443
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103.109.100.136:2053
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103.109.100.136:2083
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103.109.100.136:2087
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103.109.100.136:2096
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103.109.100.136:8443
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VFNR2qYNd57B
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delay
0
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install
true
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install_file
e1oo.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\9d99786be03e8f4bce864788cfd74780a5c301d7ac13ec607c6d8e2a2232075e.exe"C:\Users\Admin\AppData\Local\Temp\9d99786be03e8f4bce864788cfd74780a5c301d7ac13ec607c6d8e2a2232075e.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 "e1oo" /tr '"C:\Users\Admin\AppData\Roaming\e1oo.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 "e1oo" /tr '"C:\Users\Admin\AppData\Roaming\e1oo.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\tmpF874.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\e1oo.exe"C:\Users\Admin\AppData\Roaming\e1oo.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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C:\Users\Admin\AppData\Roaming\e1oo.exe"C:\Users\Admin\AppData\Roaming\e1oo.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
tmpF874.tmp.bat
e1oo.exe
memory/2452-14-0x0000000074B30000-0x00000000752EC000-memory.dmp
memory/2452-12-0x0000000074B30000-0x00000000752EC000-memory.dmp
memory/3464-36-0x00000276001E0000-0x00000276002E0000-memory.dmp
memory/3464-81-0x0000027614240000-0x0000027614260000-memory.dmp
memory/3464-67-0x0000027602E00000-0x0000027602E20000-memory.dmp
memory/3464-47-0x0000027602A20000-0x0000027602A40000-memory.dmp
memory/3464-48-0x0000027602E80000-0x0000027602F80000-memory.dmp
memory/4832-8-0x0000000074CA0000-0x000000007545C000-memory.dmp
memory/4832-3-0x0000000005910000-0x00000000059AC000-memory.dmp
memory/4832-2-0x0000000074CA0000-0x000000007545C000-memory.dmp
memory/4832-1-0x0000000000D00000-0x0000000000D12000-memory.dmp
memory/4832-0-0x0000000074CB2000-0x0000000074CB3000-memory.dmp