Analysis
- max time kernel
149s - max time network
103s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
07/05/2024, 21:39
General
- Target 3fcf99f1e0d9dc0a7286728d20bc7580_NEIKI.exe
- Size 997KB
- Sample240507-1hwflaca64
- SHA256 e86ff967ff444d50d892200880556b56a66262b4a0fe2a22dee45127d3df6a7f
Malware Config
Signatures
- AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Detect ZGRat V1 2 IoCs
- ZGRat
ZGRat is remote access trojan written in C#.
- Async RAT payload 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Delays execution with timeout.exe 1 IoCs
- Modifies registry class 22 IoCs
- Suspicious behavior: EnumeratesProcesses 29 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 10 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\3fcf99f1e0d9dc0a7286728d20bc7580_NEIKI.exe"C:\Users\Admin\AppData\Local\Temp\3fcf99f1e0d9dc0a7286728d20bc7580_NEIKI.exe"1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "AnyDesk60" /tr '"C:\Users\Admin\AppData\Roaming\AnyDesk60.exe"' & exit2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "AnyDesk60" /tr '"C:\Users\Admin\AppData\Roaming\AnyDesk60.exe"'3⤵
- Creates scheduled task(s)
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5275.tmp.bat""2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
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C:\Users\Admin\AppData\Roaming\AnyDesk60.exe"C:\Users\Admin\AppData\Roaming\AnyDesk60.exe"3⤵
- Executes dropped EXE
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
44538E74
59FD041E
90424E7E
tmp5275.tmp.bat
AnyDesk60.exe
memory/4884-3-0x0000000003270000-0x000000000327A000-memory.dmp
memory/4884-13-0x000000001BEB0000-0x000000001C059000-memory.dmp
memory/4884-14-0x00007FFF334F0000-0x00007FFF33FB1000-memory.dmp
memory/4884-5-0x00007FFF334F0000-0x00007FFF33FB1000-memory.dmp
memory/4884-4-0x00007FFF334F0000-0x00007FFF33FB1000-memory.dmp
memory/4884-0-0x0000000000DF0000-0x0000000000EEE000-memory.dmp
memory/4884-2-0x00007FFF334F0000-0x00007FFF33FB1000-memory.dmp
memory/4884-1-0x00007FFF334F3000-0x00007FFF334F5000-memory.dmp