Analysis
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max time kernel
149s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
23-05-2024 07:57
Behavioral task
behavioral1
Sample
828612359d55d8d0619fcc991584a0e0_NeikiAnalytics.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
828612359d55d8d0619fcc991584a0e0_NeikiAnalytics.exe
Resource
win10v2004-20240508-en
General
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Target
828612359d55d8d0619fcc991584a0e0_NeikiAnalytics.exe
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Size
22KB
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MD5
828612359d55d8d0619fcc991584a0e0
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SHA1
9ab5d667640fb6fda3e20c117270f5e8823a5bf4
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SHA256
92b5a1aa6b9ee325b8ac7953fcec6f3bcb74da7f385fcba8c7471563be6ccddb
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SHA512
16a39ecef2f861d4dfa63d1bde5ab772bd37d7c82f8428e7d6c8747edc232f005868adb9cb996b97f9e87be5e155a5c255d6bcffed0872171173e4aaae073113
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SSDEEP
384:UBWoC5GDr6wc/w3HgM6vDUTAXBGCVf4WVlFvXVB7PA:rRkiLw3HsDSARGG/rPA
Malware Config
Signatures
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Processes:
rmass.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "5120" rmass.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "5120" rmass.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "5120" rmass.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "5120" rmass.exe -
Drops file in Drivers directory 1 IoCs
Processes:
rmass.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts rmass.exe -
Modifies Installed Components in the registry 2 TTPs 4 IoCs
Processes:
rmass.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{484B554C-4249-4255-484B-554C42494255} rmass.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{484B554C-4249-4255-484B-554C42494255}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a" rmass.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{484B554C-4249-4255-484B-554C42494255}\IsInstalled = "1" rmass.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{484B554C-4249-4255-484B-554C42494255}\StubPath = "C:\\Windows\\system32\\ahuy.exe" rmass.exe -
Sets file execution options in registry 2 TTPs 3 IoCs
Processes:
rmass.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 = "a" rmass.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Windows\\system32\\ntdbg.exe" rmass.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe rmass.exe -
Executes dropped EXE 2 IoCs
Processes:
rmass.exermass.exepid process 2872 rmass.exe 2596 rmass.exe -
Loads dropped DLL 3 IoCs
Processes:
828612359d55d8d0619fcc991584a0e0_NeikiAnalytics.exermass.exepid process 2172 828612359d55d8d0619fcc991584a0e0_NeikiAnalytics.exe 2172 828612359d55d8d0619fcc991584a0e0_NeikiAnalytics.exe 2872 rmass.exe -
Processes:
resource yara_rule behavioral1/memory/2172-0-0x0000000000400000-0x0000000000411000-memory.dmp upx \Windows\SysWOW64\rmass.exe upx behavioral1/memory/2172-5-0x0000000000320000-0x0000000000331000-memory.dmp upx behavioral1/memory/2172-12-0x0000000000400000-0x0000000000411000-memory.dmp upx behavioral1/memory/2596-26-0x0000000000400000-0x0000000000411000-memory.dmp upx behavioral1/memory/2872-25-0x0000000000530000-0x0000000000541000-memory.dmp upx behavioral1/memory/2872-60-0x0000000000400000-0x0000000000411000-memory.dmp upx behavioral1/memory/2596-61-0x0000000000400000-0x0000000000411000-memory.dmp upx behavioral1/memory/2872-100-0x0000000000530000-0x0000000000541000-memory.dmp upx -
Processes:
rmass.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "5120" rmass.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "5120" rmass.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "5120" rmass.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "5120" rmass.exe -
Modifies WinLogon 2 TTPs 5 IoCs
Processes:
rmass.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup" rmass.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B} rmass.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify rmass.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a" rmass.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\RECOVER32.DLL" rmass.exe -
Drops file in System32 directory 12 IoCs
Processes:
828612359d55d8d0619fcc991584a0e0_NeikiAnalytics.exermass.exedescription ioc process File created C:\Windows\SysWOW64\rmass.exe 828612359d55d8d0619fcc991584a0e0_NeikiAnalytics.exe File created C:\Windows\SysWOW64\ntdbg.exe rmass.exe File opened for modification C:\Windows\SysWOW64\ahuy.exe rmass.exe File opened for modification C:\Windows\SysWOW64\winrnt.exe rmass.exe File opened for modification C:\Windows\SysWOW64\idbg32.exe rmass.exe File opened for modification C:\Windows\SysWOW64\rmass.exe 828612359d55d8d0619fcc991584a0e0_NeikiAnalytics.exe File opened for modification C:\Windows\SysWOW64\ntdbg.exe rmass.exe File created C:\Windows\SysWOW64\ahuy.exe rmass.exe File opened for modification C:\Windows\SysWOW64\RECOVER32.DLL rmass.exe File created C:\Windows\SysWOW64\RECOVER32.DLL rmass.exe File opened for modification C:\Windows\SysWOW64\aset32.exe rmass.exe File opened for modification C:\Windows\SysWOW64\rmass.exe rmass.exe -
Drops file in Program Files directory 3 IoCs
Processes:
rmass.exedescription ioc process File opened for modification C:\Program Files (x86)\Common Files\System\idbg32.exe rmass.exe File opened for modification C:\Program Files (x86)\Common Files\System\winrnt.exe rmass.exe File opened for modification C:\Program Files (x86)\Common Files\System\aset32.exe rmass.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
rmass.exermass.exepid process 2872 rmass.exe 2872 rmass.exe 2872 rmass.exe 2596 rmass.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
828612359d55d8d0619fcc991584a0e0_NeikiAnalytics.exermass.exedescription pid process Token: SeDebugPrivilege 2172 828612359d55d8d0619fcc991584a0e0_NeikiAnalytics.exe Token: SeDebugPrivilege 2872 rmass.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
828612359d55d8d0619fcc991584a0e0_NeikiAnalytics.exermass.exedescription pid process target process PID 2172 wrote to memory of 2872 2172 828612359d55d8d0619fcc991584a0e0_NeikiAnalytics.exe rmass.exe PID 2172 wrote to memory of 2872 2172 828612359d55d8d0619fcc991584a0e0_NeikiAnalytics.exe rmass.exe PID 2172 wrote to memory of 2872 2172 828612359d55d8d0619fcc991584a0e0_NeikiAnalytics.exe rmass.exe PID 2172 wrote to memory of 2872 2172 828612359d55d8d0619fcc991584a0e0_NeikiAnalytics.exe rmass.exe PID 2872 wrote to memory of 436 2872 rmass.exe winlogon.exe PID 2872 wrote to memory of 1112 2872 rmass.exe Explorer.EXE PID 2872 wrote to memory of 2596 2872 rmass.exe rmass.exe PID 2872 wrote to memory of 2596 2872 rmass.exe rmass.exe PID 2872 wrote to memory of 2596 2872 rmass.exe rmass.exe PID 2872 wrote to memory of 2596 2872 rmass.exe rmass.exe
Processes
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C:\Windows\system32\winlogon.exewinlogon.exe1⤵
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
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C:\Users\Admin\AppData\Local\Temp\828612359d55d8d0619fcc991584a0e0_NeikiAnalytics.exe"C:\Users\Admin\AppData\Local\Temp\828612359d55d8d0619fcc991584a0e0_NeikiAnalytics.exe"2⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rmass.exe"C:\Windows\system32\rmass.exe"3⤵
- Windows security bypass
- Drops file in Drivers directory
- Modifies Installed Components in the registry
- Sets file execution options in registry
- Executes dropped EXE
- Loads dropped DLL
- Windows security modification
- Modifies WinLogon
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rmass.exe--k33p4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Windows\SysWOW64\RECOVER32.DLLFilesize
5KB
MD52b2c28a7a01f9584fe220ef84003427f
SHA15fc023df0b5064045eb8de7f2dbe26f07f6fec70
SHA2569e00af53b1d0c0f5270d94a666d95aa7b4dcb9fea49487c210c055c9dcfcc9eb
SHA51239192a8a91dec1abff25af8dac0cf39da4dfd51b3fb4f1ef0b4e776185d4280fbe8387c2ea778da7bbf2ce288b0bce4d23cbe8d9e87bbd250159044f5adbac78
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C:\Windows\SysWOW64\ahuy.exeFilesize
24KB
MD503b71eec16120634ed49237d8d08287f
SHA1e4b6dc70b6f3805a29bbc0c4978531eb5dd9ddd9
SHA2569d71182fb146d2f9be826a210dba554ad083bd08baf60ed4554f0b664c654db4
SHA51287e80b6d6318b645f519e8a140ea15cccebaa0d49966ce484972d200a86fe6e82ab74948687dcace7e8ba12650fbcbfb101900b7dcd94579a6200598146e02d9
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C:\Windows\SysWOW64\ntdbg.exeFilesize
25KB
MD50ae36f537da105c4e76bd1616df74757
SHA1a1fabfcfae364a81c0a0ccd635f7b8c87e41f45f
SHA2566f3ca7f23398217d6dd7c40bf5c64488733cf0e36a944d76cb2f96d37a64ea32
SHA51213b6894a1aec898f66acd53ac9b60e6ef1a0f70947d1cb1f16082e95f5d119dcb51d4f5e3daaf0f72b0fb8b4faee7437e324391eb59997d58e76107fd3bf84bc
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C:\Windows\System32\drivers\etc\hostsFilesize
1KB
MD5b10b13206b0f2cf3968050072f6979bf
SHA1699db21ba9cecf3f13ac3d76e22cfa41aa94da80
SHA2560eef3217095cb97b695c434e74d6314bf9e869a013d6e9c88e58c34576a276b4
SHA512d33bfd931be6676539507a69101d99fa4c5ef36b12422bd11f063b9b6a47b7444f6c4ad5f35e044714fdb872e96cd9fddf049e8329af1219483887f6ac5f4a5d
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\Windows\SysWOW64\rmass.exeFilesize
22KB
MD5828612359d55d8d0619fcc991584a0e0
SHA19ab5d667640fb6fda3e20c117270f5e8823a5bf4
SHA25692b5a1aa6b9ee325b8ac7953fcec6f3bcb74da7f385fcba8c7471563be6ccddb
SHA51216a39ecef2f861d4dfa63d1bde5ab772bd37d7c82f8428e7d6c8747edc232f005868adb9cb996b97f9e87be5e155a5c255d6bcffed0872171173e4aaae073113
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memory/2172-12-0x0000000000400000-0x0000000000411000-memory.dmpFilesize
68KB
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memory/2172-0-0x0000000000400000-0x0000000000411000-memory.dmpFilesize
68KB
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memory/2172-5-0x0000000000320000-0x0000000000331000-memory.dmpFilesize
68KB
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memory/2596-26-0x0000000000400000-0x0000000000411000-memory.dmpFilesize
68KB
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memory/2596-61-0x0000000000400000-0x0000000000411000-memory.dmpFilesize
68KB
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memory/2872-25-0x0000000000530000-0x0000000000541000-memory.dmpFilesize
68KB
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memory/2872-60-0x0000000000400000-0x0000000000411000-memory.dmpFilesize
68KB
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memory/2872-100-0x0000000000530000-0x0000000000541000-memory.dmpFilesize
68KB