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 05:56
Behavioral task
behavioral1
Sample
79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe
Resource
win7-20240221-en
General
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Target
79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe
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Size
1.2MB
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MD5
79f18ca94d967d0816a7b0eceeaba8d0
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SHA1
59bb1c66df86080789d466843ee379007c0e6b44
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SHA256
d025eca669224179172e4cebc5ccfb5c1803d596eb707f6d660f85d214d54b4a
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SHA512
97041c64ba1870dbb4f2250951b9a3b2a636fd7e015bfbd829f41d5ff1a08a9160db72d5f225eb56ead9895394c1adfc7faa7bb36c5f452d394fed5c4733ed34
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SSDEEP
24576:zQ5aILMCfmAUjzX6xQt+4En+bcMAOFZ+jJ/1q0GrbcUxnMjb:E5aIwC+Agr6StVEnmcKWnq0vljb
Malware Config
Signatures
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KPOT Core Executable 1 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\WinSocket\89f19ca94d978d0917a8b0eceeaba9d0_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/2020-15-0x0000000000290000-0x00000000002B9000-memory.dmp trickbot_loader32 -
Executes dropped EXE 3 IoCs
Processes:
89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exepid process 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe 1280 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe 1212 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe -
Loads dropped DLL 2 IoCs
Processes:
79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exepid process 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe 2020 79f18ca94d967d0816a7b0eceeaba8d0_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 2552 sc.exe 2660 sc.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exepowershell.exepid process 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe 2464 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
powershell.exe89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exedescription pid process Token: SeDebugPrivilege 2464 powershell.exe Token: SeTcbPrivilege 1280 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe Token: SeTcbPrivilege 1212 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
Processes:
79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exepid process 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe 1280 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe 1212 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
79f18ca94d967d0816a7b0eceeaba8d0_NEAS.execmd.execmd.execmd.exe89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exetaskeng.exe89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exedescription pid process target process PID 2020 wrote to memory of 2624 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe cmd.exe PID 2020 wrote to memory of 2624 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe cmd.exe PID 2020 wrote to memory of 2624 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe cmd.exe PID 2020 wrote to memory of 2624 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe cmd.exe PID 2020 wrote to memory of 2628 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe cmd.exe PID 2020 wrote to memory of 2628 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe cmd.exe PID 2020 wrote to memory of 2628 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe cmd.exe PID 2020 wrote to memory of 2628 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe cmd.exe PID 2020 wrote to memory of 2652 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe cmd.exe PID 2020 wrote to memory of 2652 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe cmd.exe PID 2020 wrote to memory of 2652 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe cmd.exe PID 2020 wrote to memory of 2652 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe cmd.exe PID 2020 wrote to memory of 2416 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe PID 2020 wrote to memory of 2416 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe PID 2020 wrote to memory of 2416 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe PID 2020 wrote to memory of 2416 2020 79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe PID 2624 wrote to memory of 2552 2624 cmd.exe sc.exe PID 2624 wrote to memory of 2552 2624 cmd.exe sc.exe PID 2624 wrote to memory of 2552 2624 cmd.exe sc.exe PID 2624 wrote to memory of 2552 2624 cmd.exe sc.exe PID 2628 wrote to memory of 2660 2628 cmd.exe sc.exe PID 2628 wrote to memory of 2660 2628 cmd.exe sc.exe PID 2628 wrote to memory of 2660 2628 cmd.exe sc.exe PID 2628 wrote to memory of 2660 2628 cmd.exe sc.exe PID 2652 wrote to memory of 2464 2652 cmd.exe powershell.exe PID 2652 wrote to memory of 2464 2652 cmd.exe powershell.exe PID 2652 wrote to memory of 2464 2652 cmd.exe powershell.exe PID 2652 wrote to memory of 2464 2652 cmd.exe powershell.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 2416 wrote to memory of 2528 2416 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 708 wrote to memory of 1280 708 taskeng.exe 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe PID 708 wrote to memory of 1280 708 taskeng.exe 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe PID 708 wrote to memory of 1280 708 taskeng.exe 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe PID 708 wrote to memory of 1280 708 taskeng.exe 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe PID 1280 wrote to memory of 2040 1280 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 1280 wrote to memory of 2040 1280 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 1280 wrote to memory of 2040 1280 89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe svchost.exe PID 1280 wrote to memory of 2040 1280 89f19ca94d978d0917a8b0eceeaba9d0_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\79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe"C:\Users\Admin\AppData\Local\Temp\79f18ca94d967d0816a7b0eceeaba8d0_NEAS.exe"1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2020 -
C:\Windows\SysWOW64\cmd.exe/c sc stop WinDefend2⤵
- Suspicious use of WriteProcessMemory
PID:2624 -
C:\Windows\SysWOW64\sc.exesc stop WinDefend3⤵
- Launches sc.exe
PID:2552 -
C:\Windows\SysWOW64\cmd.exe/c sc delete WinDefend2⤵
- Suspicious use of WriteProcessMemory
PID:2628 -
C:\Windows\SysWOW64\sc.exesc delete WinDefend3⤵
- Launches sc.exe
PID:2660 -
C:\Windows\SysWOW64\cmd.exe/c powershell Set-MpPreference -DisableRealtimeMonitoring $true2⤵
- Suspicious use of WriteProcessMemory
PID:2652 -
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:2464 -
C:\Users\Admin\AppData\Roaming\WinSocket\89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exeC:\Users\Admin\AppData\Roaming\WinSocket\89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2416 -
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe3⤵PID:2528
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C:\Windows\system32\taskeng.exetaskeng.exe {7578397D-AFF7-4078-84B6-5EE272311C95} S-1-5-18:NT AUTHORITY\System:Service:1⤵
- Suspicious use of WriteProcessMemory
PID:708 -
C:\Users\Admin\AppData\Roaming\WinSocket\89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exeC:\Users\Admin\AppData\Roaming\WinSocket\89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1280 -
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe3⤵PID:2040
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C:\Users\Admin\AppData\Roaming\WinSocket\89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exeC:\Users\Admin\AppData\Roaming\WinSocket\89f19ca94d978d0917a8b0eceeaba9d0_NFAS.exe2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1212 -
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe3⤵PID:1556
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.2MB
MD579f18ca94d967d0816a7b0eceeaba8d0
SHA159bb1c66df86080789d466843ee379007c0e6b44
SHA256d025eca669224179172e4cebc5ccfb5c1803d596eb707f6d660f85d214d54b4a
SHA51297041c64ba1870dbb4f2250951b9a3b2a636fd7e015bfbd829f41d5ff1a08a9160db72d5f225eb56ead9895394c1adfc7faa7bb36c5f452d394fed5c4733ed34