Analysis
- max time kernel
30s - max time network
27s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260630-en - resource tags
- submitted
06/07/2026, 07:49
General
- Target ck-.exe
- Size 45KB
- Sample260706-jnypgabv2s
- SHA256 c386e55b9a49fd7c333b481c213064bad637344a62cd9973f0b435070414eebe
Malware Config
Extracted
-
asyncrat
-
0.5.8
-
Default
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bitcoinb.io:443
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bitcoinb.io:80
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bitcoinb.io:25
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bitcoinb.io:8443
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l8kBRmivxU15
-
delay
9
-
install
true
-
install_file
ck-.exe
-
install_folder
%AppData%
Signatures
- Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Async RAT payload 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 1 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.
Processes
-
C:\Users\Admin\AppData\Local\Temp\ck-.exe"C:\Users\Admin\AppData\Local\Temp\ck-.exe"1⤵
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "ck-" /tr '"C:\Users\Admin\AppData\Roaming\ck-.exe"' & exit2⤵
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "ck-" /tr '"C:\Users\Admin\AppData\Roaming\ck-.exe"'3⤵
- 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\tmp9805.tmp.bat""2⤵
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C:\Windows\SysWOW64\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
-
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C:\Users\Admin\AppData\Roaming\ck-.exe"C:\Users\Admin\AppData\Roaming\ck-.exe"3⤵
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-
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C:\Users\Admin\AppData\Roaming\ck-.exe"C:\Users\Admin\AppData\Roaming\ck-.exe"1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
tmp9805.tmp.bat
ck-.exe
memory/2632-13-0x0000000074A70000-0x000000007522C000-memory.dmp
memory/2632-15-0x0000000074A70000-0x000000007522C000-memory.dmp
memory/5168-0-0x0000000074A82000-0x0000000074A83000-memory.dmp
memory/5168-1-0x00000000000B0000-0x00000000000C2000-memory.dmp
memory/5168-2-0x0000000074A82000-0x0000000074A83000-memory.dmp
memory/5168-3-0x0000000074A70000-0x000000007522C000-memory.dmp
memory/5168-4-0x0000000004CA0000-0x0000000004D3C000-memory.dmp
memory/5168-10-0x0000000074A70000-0x000000007522C000-memory.dmp