Analysis
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max time kernel
149s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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 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 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 -
Sets file execution options in registry 2 TTPs 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe rmass.exe 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 -
Executes dropped EXE 2 IoCs
pid Process 2144 rmass.exe 2612 rmass.exe -
Loads dropped DLL 3 IoCs
pid Process 2036 2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.exe 2036 2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.exe 2144 rmass.exe -
resource yara_rule behavioral1/memory/2036-5-0x0000000000320000-0x0000000000332000-memory.dmp upx behavioral1/memory/2036-4-0x0000000000400000-0x0000000000412000-memory.dmp upx behavioral1/files/0x000d00000001340c-3.dat upx behavioral1/memory/2144-12-0x0000000000400000-0x0000000000412000-memory.dmp upx behavioral1/memory/2144-85-0x0000000000400000-0x0000000000412000-memory.dmp upx behavioral1/memory/2612-96-0x0000000000400000-0x0000000000412000-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}\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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a" rmass.exe -
Drops file in System32 directory 12 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\ahuy.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 File created C:\Windows\SysWOW64\ntdbg.exe rmass.exe File created C:\Windows\SysWOW64\rmass.exe 2ad334975467a1d46221d848ca80c8e0_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\winrnt.exe rmass.exe File opened for modification C:\Windows\SysWOW64\aset32.exe rmass.exe File opened for modification C:\Windows\SysWOW64\rmass.exe 2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.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 4 IoCs
pid Process 2144 rmass.exe 2144 rmass.exe 2144 rmass.exe 2612 rmass.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2036 2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.exe Token: SeDebugPrivilege 2144 rmass.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 2036 wrote to memory of 2144 2036 2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.exe 28 PID 2036 wrote to memory of 2144 2036 2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.exe 28 PID 2036 wrote to memory of 2144 2036 2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.exe 28 PID 2036 wrote to memory of 2144 2036 2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.exe 28 PID 2144 wrote to memory of 2612 2144 rmass.exe 29 PID 2144 wrote to memory of 2612 2144 rmass.exe 29 PID 2144 wrote to memory of 2612 2144 rmass.exe 29 PID 2144 wrote to memory of 2612 2144 rmass.exe 29 PID 2144 wrote to memory of 436 2144 rmass.exe 5 PID 2144 wrote to memory of 1160 2144 rmass.exe 20
Processes
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C:\Windows\system32\winlogon.exewinlogon.exe1⤵PID:436
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1160
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C:\Users\Admin\AppData\Local\Temp\2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.exe"C:\Users\Admin\AppData\Local\Temp\2ad334975467a1d46221d848ca80c8e0_NeikiAnalytics.exe"2⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2036 -
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
PID:2144 -
C:\Windows\SysWOW64\rmass.exe--k33p4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:2612
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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
MD50aab8f93f3fe6fd01857fb98744e8d11
SHA1f52700c8fcf621215bc0759bf98f621d95006e59
SHA25653927784642a307e9c66e34c21206e061dc4429c0eb72d5ac87b67f40a153ec9
SHA512994d97331a138dd0b32764ee635a44f65ec35717a8e97ef0eef757604c08a5c4a4c79ddb22df0af3fa1b5ca4cbf25a6c3f593def715dc9da487f6fb94322dceb
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Filesize
66KB
MD50888157cb07893736d05b3b5e4924bd0
SHA1eef66a3bf25909d72c63b263de3c12554397a7d1
SHA256e280f3e8561bca3ba8a7f8a9a0592a8b877d8e19a07e4b0f2033013d47cda5d3
SHA512c3bd3db0e28f7db38a0bbd6a25323b511ed0cda6ec038035cd1bcda3136bb13a4113a838c5d66b65b385783cef07647773f4362a6b6bbd544b59c0e7342d9141
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Filesize
1KB
MD5b10b13206b0f2cf3968050072f6979bf
SHA1699db21ba9cecf3f13ac3d76e22cfa41aa94da80
SHA2560eef3217095cb97b695c434e74d6314bf9e869a013d6e9c88e58c34576a276b4
SHA512d33bfd931be6676539507a69101d99fa4c5ef36b12422bd11f063b9b6a47b7444f6c4ad5f35e044714fdb872e96cd9fddf049e8329af1219483887f6ac5f4a5d
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Filesize
63KB
MD52ad334975467a1d46221d848ca80c8e0
SHA1a311e2e361f15f7a199cf555845b37d50b074b32
SHA2562465f83c8ae5976550b0a54c6802af25a6a5969d1453cf32bee96c8b56e706de
SHA5129c7a6e910c62abb1475ed75d5d4715c87e3e3e52ccc754b4e8a702321986a501e6af13667572691a706925b78f3e7bea1290c019dd80aa0c5e2d7e0543905f3d