Analysis
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max time kernel
135s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
07-05-2024 01:10
Behavioral task
behavioral1
Sample
42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe
Resource
win7-20240221-en
General
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Target
42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe
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Size
1.3MB
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MD5
42ff47a44853ed6aa9ff72648c9c4960
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SHA1
bc5ff578adb57d6632045b56deca62dabab39683
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SHA256
da6aa9bb08e08447c305bee05c31500a0837bdfdcee7fdeae0148ba6481c0cae
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SHA512
131231fa77781abcd8711ca3761a4510fcf52468fc9c6d59557fafc22b9382962e95b68b2b9b9008bb64094a4754b05df29af93a0e6fcd4334e325534815fa10
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SSDEEP
24576:zQ5aILMCfmAUjzX6xQt+4En+bcMAOFZ+jJ/1q0GrbcUxnMj4:E5aIwC+Agr6StVEnmcKWnq0vlj4
Malware Config
Signatures
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KPOT Core Executable 1 IoCs
Processes:
resource yara_rule \Users\Admin\AppData\Roaming\WinSocket\42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe family_kpot -
Trickbot x86 loader 1 IoCs
Detected Trickbot's x86 loader that unpacks the x86 payload.
Processes:
resource yara_rule behavioral1/memory/1956-15-0x0000000000290000-0x00000000002B9000-memory.dmp trickbot_loader32 -
Executes dropped EXE 3 IoCs
Processes:
42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe42ff48a44963ed7aa9ff82749c9c4970_NFAS.exepid process 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe 1448 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe 1204 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe -
Loads dropped DLL 2 IoCs
Processes:
42ff47a44853ed6aa9ff72648c9c4960_NEAS.exepid process 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe -
Drops file in System32 directory 1 IoCs
Processes:
powershell.exedescription ioc process File opened for modification C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk powershell.exe -
Launches sc.exe 2 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exesc.exepid process 2636 sc.exe 2612 sc.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
42ff47a44853ed6aa9ff72648c9c4960_NEAS.exepowershell.exepid process 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe 2616 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
powershell.exe42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe42ff48a44963ed7aa9ff82749c9c4970_NFAS.exedescription pid process Token: SeDebugPrivilege 2616 powershell.exe Token: SeTcbPrivilege 1448 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe Token: SeTcbPrivilege 1204 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
Processes:
42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe42ff48a44963ed7aa9ff82749c9c4970_NFAS.exepid process 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe 1448 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe 1204 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
42ff47a44853ed6aa9ff72648c9c4960_NEAS.execmd.execmd.execmd.exe42ff48a44963ed7aa9ff82749c9c4970_NFAS.exetaskeng.exe42ff48a44963ed7aa9ff82749c9c4970_NFAS.exedescription pid process target process PID 1956 wrote to memory of 2012 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe cmd.exe PID 1956 wrote to memory of 2012 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe cmd.exe PID 1956 wrote to memory of 2012 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe cmd.exe PID 1956 wrote to memory of 2012 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe cmd.exe PID 1956 wrote to memory of 1260 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe cmd.exe PID 1956 wrote to memory of 1260 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe cmd.exe PID 1956 wrote to memory of 1260 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe cmd.exe PID 1956 wrote to memory of 1260 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe cmd.exe PID 1956 wrote to memory of 2716 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe cmd.exe PID 1956 wrote to memory of 2716 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe cmd.exe PID 1956 wrote to memory of 2716 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe cmd.exe PID 1956 wrote to memory of 2716 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe cmd.exe PID 1956 wrote to memory of 1964 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe PID 1956 wrote to memory of 1964 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe PID 1956 wrote to memory of 1964 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe PID 1956 wrote to memory of 1964 1956 42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe PID 2012 wrote to memory of 2636 2012 cmd.exe sc.exe PID 2012 wrote to memory of 2636 2012 cmd.exe sc.exe PID 2012 wrote to memory of 2636 2012 cmd.exe sc.exe PID 2012 wrote to memory of 2636 2012 cmd.exe sc.exe PID 1260 wrote to memory of 2612 1260 cmd.exe sc.exe PID 1260 wrote to memory of 2612 1260 cmd.exe sc.exe PID 1260 wrote to memory of 2612 1260 cmd.exe sc.exe PID 1260 wrote to memory of 2612 1260 cmd.exe sc.exe PID 2716 wrote to memory of 2616 2716 cmd.exe powershell.exe PID 2716 wrote to memory of 2616 2716 cmd.exe powershell.exe PID 2716 wrote to memory of 2616 2716 cmd.exe powershell.exe PID 2716 wrote to memory of 2616 2716 cmd.exe powershell.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1964 wrote to memory of 2312 1964 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1480 wrote to memory of 1448 1480 taskeng.exe 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe PID 1480 wrote to memory of 1448 1480 taskeng.exe 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe PID 1480 wrote to memory of 1448 1480 taskeng.exe 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe PID 1480 wrote to memory of 1448 1480 taskeng.exe 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe PID 1448 wrote to memory of 1452 1448 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1448 wrote to memory of 1452 1448 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1448 wrote to memory of 1452 1448 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe PID 1448 wrote to memory of 1452 1448 42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe svchost.exe -
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\42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe"C:\Users\Admin\AppData\Local\Temp\42ff47a44853ed6aa9ff72648c9c4960_NEAS.exe"1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1956 -
C:\Windows\SysWOW64\cmd.exe/c sc stop WinDefend2⤵
- Suspicious use of WriteProcessMemory
PID:2012 -
C:\Windows\SysWOW64\sc.exesc stop WinDefend3⤵
- Launches sc.exe
PID:2636 -
C:\Windows\SysWOW64\cmd.exe/c sc delete WinDefend2⤵
- Suspicious use of WriteProcessMemory
PID:1260 -
C:\Windows\SysWOW64\sc.exesc delete WinDefend3⤵
- Launches sc.exe
PID:2612 -
C:\Windows\SysWOW64\cmd.exe/c powershell Set-MpPreference -DisableRealtimeMonitoring $true2⤵
- Suspicious use of WriteProcessMemory
PID:2716 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell Set-MpPreference -DisableRealtimeMonitoring $true3⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2616 -
C:\Users\Admin\AppData\Roaming\WinSocket\42ff48a44963ed7aa9ff82749c9c4970_NFAS.exeC:\Users\Admin\AppData\Roaming\WinSocket\42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1964 -
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe3⤵PID:2312
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C:\Windows\system32\taskeng.exetaskeng.exe {46A4080A-7225-4B01-B283-3E374ACEA9D9} S-1-5-18:NT AUTHORITY\System:Service:1⤵
- Suspicious use of WriteProcessMemory
PID:1480 -
C:\Users\Admin\AppData\Roaming\WinSocket\42ff48a44963ed7aa9ff82749c9c4970_NFAS.exeC:\Users\Admin\AppData\Roaming\WinSocket\42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1448 -
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe3⤵PID:1452
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C:\Users\Admin\AppData\Roaming\WinSocket\42ff48a44963ed7aa9ff82749c9c4970_NFAS.exeC:\Users\Admin\AppData\Roaming\WinSocket\42ff48a44963ed7aa9ff82749c9c4970_NFAS.exe2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1204 -
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe3⤵PID:952
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.3MB
MD542ff47a44853ed6aa9ff72648c9c4960
SHA1bc5ff578adb57d6632045b56deca62dabab39683
SHA256da6aa9bb08e08447c305bee05c31500a0837bdfdcee7fdeae0148ba6481c0cae
SHA512131231fa77781abcd8711ca3761a4510fcf52468fc9c6d59557fafc22b9382962e95b68b2b9b9008bb64094a4754b05df29af93a0e6fcd4334e325534815fa10