Analysis
- max time kernel
149s - max time network
159s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
18/04/2026, 06:03
General
- Target 2dc13f8f0446524cec4f4bbe8f18f46e8fbd066bc690fced458bf2a1523a68a4.exe
- Size 45KB
- Sample260418-gr7ensa12q
- SHA256 2dc13f8f0446524cec4f4bbe8f18f46e8fbd066bc690fced458bf2a1523a68a4
Malware Config
Extracted
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asyncrat
-
0.5.8
-
Default
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dryicecoolers.com:443
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dryicecoolers.com:80
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www.dryicecoolers.com:443
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www.dryicecoolers.com:80
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downadup.dryicecoolers.com:443
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downadup.dryicecoolers.com:80
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hack.dryicecoolers.com:443
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hack.dryicecoolers.com:80
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ryuk.dryicecoolers.com:443
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ryuk.dryicecoolers.com:80
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GikHplr355Bp
-
delay
0
-
install
true
-
install_file
txb5w2tx.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 19 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2dc13f8f0446524cec4f4bbe8f18f46e8fbd066bc690fced458bf2a1523a68a4.exe"C:\Users\Admin\AppData\Local\Temp\2dc13f8f0446524cec4f4bbe8f18f46e8fbd066bc690fced458bf2a1523a68a4.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 "txb5w2tx" /tr '"C:\Users\Admin\AppData\Roaming\txb5w2tx.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 "txb5w2tx" /tr '"C:\Users\Admin\AppData\Roaming\txb5w2tx.exe"'3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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-
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp1681.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\txb5w2tx.exe"C:\Users\Admin\AppData\Roaming\txb5w2tx.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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-
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C:\Users\Admin\AppData\Roaming\txb5w2tx.exe"C:\Users\Admin\AppData\Roaming\txb5w2tx.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
tmp1681.tmp.bat
txb5w2tx.exe
memory/588-15-0x0000000004B60000-0x0000000004BC4000-memory.dmp
memory/588-16-0x0000000004BD0000-0x0000000004C34000-memory.dmp
memory/1256-11-0x0000000001630000-0x00000000016F2000-memory.dmp
memory/2288-14-0x00000000050F0000-0x0000000005154000-memory.dmp
memory/4036-0-0x0000000000580000-0x0000000000592000-memory.dmp
memory/4036-1-0x0000000005050000-0x0000000005060000-memory.dmp
memory/4036-2-0x0000000004F30000-0x0000000004FCC000-memory.dmp
memory/4036-7-0x0000000004E00000-0x0000000004E64000-memory.dmp