Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
25/05/2024, 22:28
Behavioral task
behavioral1
Sample
2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.exe
Resource
win10v2004-20240426-en
General
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Target
2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.exe
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Size
63KB
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MD5
2ad334975467a1d46221d848ca80c8e0
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SHA1
a311e2e361f15f7a199cf555845b37d50b074b32
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SHA256
2465f83c8ae5976550b0a54c6802af25a6a5969d1453cf32bee96c8b56e706de
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SHA512
9c7a6e910c62abb1475ed75d5d4715c87e3e3e52ccc754b4e8a702321986a501e6af13667572691a706925b78f3e7bea1290c019dd80aa0c5e2d7e0543905f3d
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SSDEEP
768:rAUJmQCcmLCXQq6fsKiJYsIkjJVzqsVG5kuGKQLddOW/74WvRewT:sUNHFKQbIkHvGMdOU4VwT
Malware Config
Signatures
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description 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
description ioc Process File opened for modification C:\Windows\system32\drivers\etc\hosts rmass.exe -
Modifies Installed Components in the registry 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5350444F-4846-4d41-5350-444F48464d41} rmass.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5350444F-4846-4d41-5350-444F48464d41}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a" rmass.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5350444F-4846-4d41-5350-444F48464d41}\IsInstalled = "1" rmass.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5350444F-4846-4d41-5350-444F48464d41}\StubPath = "C:\\Windows\\system32\\ahuy.exe" rmass.exe -
Sets file execution options in registry 2 TTPs 3 IoCs
description 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
pid Process 760 rmass.exe 4140 rmass.exe -
resource yara_rule behavioral2/memory/2044-0-0x0000000000400000-0x0000000000412000-memory.dmp upx behavioral2/memory/2044-6-0x0000000000400000-0x0000000000412000-memory.dmp upx behavioral2/files/0x000600000002327d-7.dat upx behavioral2/memory/760-50-0x0000000000400000-0x0000000000412000-memory.dmp upx behavioral2/memory/4140-51-0x0000000000400000-0x0000000000412000-memory.dmp upx -
description 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 -
Modifies WinLogon 2 TTPs 5 IoCs
description ioc Process 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 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 -
Drops file in System32 directory 12 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\rmass.exe 2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.exe File created C:\Windows\SysWOW64\rmass.exe 2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.exe File opened for modification C:\Windows\SysWOW64\ntdbg.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 created C:\Windows\SysWOW64\ntdbg.exe rmass.exe File opened for modification C:\Windows\SysWOW64\ahuy.exe rmass.exe File created 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 rmass.exe -
Drops file in Program Files directory 3 IoCs
description ioc Process 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 File opened for modification C:\Program Files (x86)\Common Files\System\idbg32.exe rmass.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 760 rmass.exe 760 rmass.exe 760 rmass.exe 760 rmass.exe 760 rmass.exe 760 rmass.exe 4140 rmass.exe 4140 rmass.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2044 2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.exe Token: SeDebugPrivilege 760 rmass.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2044 wrote to memory of 760 2044 2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.exe 82 PID 2044 wrote to memory of 760 2044 2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.exe 82 PID 2044 wrote to memory of 760 2044 2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.exe 82 PID 760 wrote to memory of 612 760 rmass.exe 5 PID 760 wrote to memory of 3452 760 rmass.exe 56 PID 760 wrote to memory of 4140 760 rmass.exe 83 PID 760 wrote to memory of 4140 760 rmass.exe 83 PID 760 wrote to memory of 4140 760 rmass.exe 83
Processes
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C:\Windows\system32\winlogon.exewinlogon.exe1⤵PID:612
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3452
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C:\Users\Admin\AppData\Local\Temp\2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.exe"C:\Users\Admin\AppData\Local\Temp\2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.exe"2⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2044 -
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
- 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
PID:760 -
C:\Windows\SysWOW64\rmass.exe--k33p4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:4140
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
5KB
MD52b2c28a7a01f9584fe220ef84003427f
SHA15fc023df0b5064045eb8de7f2dbe26f07f6fec70
SHA2569e00af53b1d0c0f5270d94a666d95aa7b4dcb9fea49487c210c055c9dcfcc9eb
SHA51239192a8a91dec1abff25af8dac0cf39da4dfd51b3fb4f1ef0b4e776185d4280fbe8387c2ea778da7bbf2ce288b0bce4d23cbe8d9e87bbd250159044f5adbac78
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Filesize
65KB
MD5fa135627262c8254af12be7b65291a9e
SHA163bd33ea5b320aca48387d57e1e0bd8cc12a6e8f
SHA2563da78f99bbfd9b7a6ba72f2cfa187f7c406cb01a7e24e9b391a059ebd8ed3c15
SHA512c6d93a14f3ab64417aafa0d9e8a10a139c986f0a215637f3668fcb0ffe6cb0464ebc6cbae988476b1955c1dd342b59fa82be27178069d6576d3356f97e3947c4
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Filesize
66KB
MD57ae7165a347f63dc0a02462447131c82
SHA180e2fbe4972eef830298af900e48fd17cc65050c
SHA256e9314fbff81dd6e27533e1d120cc6e6274c2a985ebdaa61fb436ac19cf0b52c9
SHA51292b71240403deefec1e79bd42f0560e1a5a38dec4516f08b563b63d5b716af9a9cd632bfc62dc5c34acce00bcc334fffa2210dcc942d79dca529deacf389544f
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Filesize
63KB
MD52ad334975467a1d46221d848ca80c8e0
SHA1a311e2e361f15f7a199cf555845b37d50b074b32
SHA2562465f83c8ae5976550b0a54c6802af25a6a5969d1453cf32bee96c8b56e706de
SHA5129c7a6e910c62abb1475ed75d5d4715c87e3e3e52ccc754b4e8a702321986a501e6af13667572691a706925b78f3e7bea1290c019dd80aa0c5e2d7e0543905f3d
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Filesize
1KB
MD56f47b62de25d1745e296a06b3f98ed19
SHA1a688bb35a4c8a5cc198985d624a1b5a6ac5b9f6f
SHA25615c7218eb9cef5fa0573db657b15ce3a5f0e0609f1166df8098ca7152df505b4
SHA512dea26fff8060f44bf20fe4fff2ecbacf428727f10c0f5886fb4813e28fce9cbc3d088337c84edd9857b18514c83f1bb1cf0f51518aaecef09f30e921f4d758d7