Analysis
- max time kernel
148s - max time network
146s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
- submitted
11/07/2026, 14:42
General
- Target d7fb2f26bc6d3fb68f37fe560c93f20427346842b26cc315f1846a7600123279.exe
- Size 45KB
- Sample260711-r299esev5x
- SHA256 d7fb2f26bc6d3fb68f37fe560c93f20427346842b26cc315f1846a7600123279
Malware Config
Extracted
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asyncrat
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0.5.8
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Default
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160.25.84.171:80
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160.25.84.171:22
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160.25.84.171:8080
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160.25.84.171:8880
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160.25.84.171:2052
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160.25.84.171:2082
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160.25.84.171:2086
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160.25.84.171:2095
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160.25.84.171:443
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160.25.84.171:2053
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160.25.84.171:2083
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160.25.84.171:2087
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160.25.84.171:2096
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160.25.84.171:8443
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nko4lxEtQuqG
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delay
0
-
install
true
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install_file
h64b4s.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\d7fb2f26bc6d3fb68f37fe560c93f20427346842b26cc315f1846a7600123279.exe"C:\Users\Admin\AppData\Local\Temp\d7fb2f26bc6d3fb68f37fe560c93f20427346842b26cc315f1846a7600123279.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 "h64b4s" /tr '"C:\Users\Admin\AppData\Roaming\h64b4s.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 "h64b4s" /tr '"C:\Users\Admin\AppData\Roaming\h64b4s.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\tmpDD66.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\h64b4s.exe"C:\Users\Admin\AppData\Roaming\h64b4s.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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-
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C:\Users\Admin\AppData\Roaming\h64b4s.exe"C:\Users\Admin\AppData\Roaming\h64b4s.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
tmpDD66.tmp.bat
h64b4s.exe
memory/2116-12-0x0000000074830000-0x0000000074FEC000-memory.dmp
memory/2116-14-0x0000000074830000-0x0000000074FEC000-memory.dmp
memory/5384-0-0x0000000074842000-0x0000000074843000-memory.dmp
memory/5384-1-0x0000000000110000-0x0000000000122000-memory.dmp
memory/5384-2-0x0000000074830000-0x0000000074FEC000-memory.dmp
memory/5384-3-0x0000000004C30000-0x0000000004CCC000-memory.dmp
memory/5384-9-0x0000000074830000-0x0000000074FEC000-memory.dmp