Analysis
- max time kernel
137s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
21/03/2024, 03:00
General
- Target f2b8ab95d31e2e8381965f6ca4f2f1cf6226e11604375733bed3bc59334dfac0.exe
- Size 203KB
- Sample240321-dha4bsbf2s
- SHA256 f2b8ab95d31e2e8381965f6ca4f2f1cf6226e11604375733bed3bc59334dfac0
Score
10/10
Malware Config
Signatures
- NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
- Unexpected DNS network traffic destination 6 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Drops file in Program Files directory 2 IoCs
- Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\f2b8ab95d31e2e8381965f6ca4f2f1cf6226e11604375733bed3bc59334dfac0.exe"C:\Users\Admin\AppData\Local\Temp\f2b8ab95d31e2e8381965f6ca4f2f1cf6226e11604375733bed3bc59334dfac0.exe"1⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "NAT Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4CC8.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "NAT Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4D46.tmp"2⤵
- Creates scheduled task(s)
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
tmp4CC8.tmp
tmp4D46.tmp
memory/3736-0-0x0000000074950000-0x0000000074F01000-memory.dmp
memory/3736-1-0x0000000000EC0000-0x0000000000ED0000-memory.dmp
memory/3736-2-0x0000000074950000-0x0000000074F01000-memory.dmp
memory/3736-10-0x0000000000EC0000-0x0000000000ED0000-memory.dmp
memory/3736-11-0x0000000074950000-0x0000000074F01000-memory.dmp
memory/3736-12-0x0000000000EC0000-0x0000000000ED0000-memory.dmp