Analysis
-
max time kernel
149s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
13/05/2024, 10:42
Static task
static1
Behavioral task
behavioral1
Sample
b32e0df3fa714e1e8b3a2faa643d2740_NeikiAnalytics.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
b32e0df3fa714e1e8b3a2faa643d2740_NeikiAnalytics.exe
Resource
win10v2004-20240508-en
General
-
Target
b32e0df3fa714e1e8b3a2faa643d2740_NeikiAnalytics.exe
-
Size
66KB
-
MD5
b32e0df3fa714e1e8b3a2faa643d2740
-
SHA1
330f3f5579808078119738a5f17a35758632cd75
-
SHA256
24b67fc502ac7d9e25286a72a073b67b867bfe45fbaee0adb2ef71bcfb0f9b12
-
SHA512
0f8c06ee2f261a1277889256cf803c05566056127bbc0bc582c2221aed2c96b734231cb06566c174fc1a0facfaaf2702f7858f31a734aae5e4a2684ef0512207
-
SSDEEP
768:jIUo+nlbMnDtmJf5t063Dt103lJ2zD9yIvo3UHQ:jKIZaQT26zt103lJ2v93oEHQ
Malware Config
Signatures
-
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\{4249534D-495a-4858-4249-534D495A4858} rmass.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4249534D-495a-4858-4249-534D495A4858}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a" rmass.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4249534D-495a-4858-4249-534D495A4858}\IsInstalled = "1" rmass.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4249534D-495a-4858-4249-534D495A4858}\StubPath = "C:\\Windows\\system32\\ahuy.exe" 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 2252 rmass.exe 2484 rmass.exe -
Loads dropped DLL 3 IoCs
pid Process 2240 b32e0df3fa714e1e8b3a2faa643d2740_NeikiAnalytics.exe 2240 b32e0df3fa714e1e8b3a2faa643d2740_NeikiAnalytics.exe 2252 rmass.exe -
resource yara_rule behavioral1/files/0x000d00000001342e-1.dat upx behavioral1/memory/2240-2-0x0000000000020000-0x0000000000032000-memory.dmp upx behavioral1/memory/2252-10-0x0000000000400000-0x0000000000412000-memory.dmp upx behavioral1/memory/2484-23-0x0000000000400000-0x0000000000412000-memory.dmp upx behavioral1/memory/2252-84-0x0000000000400000-0x0000000000412000-memory.dmp upx behavioral1/memory/2484-95-0x0000000000400000-0x0000000000412000-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 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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup" rmass.exe -
Drops file in System32 directory 12 IoCs
description ioc Process File created C:\Windows\SysWOW64\rmass.exe b32e0df3fa714e1e8b3a2faa643d2740_NeikiAnalytics.exe File opened for modification C:\Windows\SysWOW64\ntdbg.exe rmass.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\aset32.exe rmass.exe File opened for modification C:\Windows\SysWOW64\rmass.exe rmass.exe File opened for modification C:\Windows\SysWOW64\rmass.exe b32e0df3fa714e1e8b3a2faa643d2740_NeikiAnalytics.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\idbg32.exe rmass.exe File created C:\Windows\SysWOW64\ahuy.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 4 IoCs
pid Process 2252 rmass.exe 2252 rmass.exe 2252 rmass.exe 2484 rmass.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2252 rmass.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 2240 wrote to memory of 2252 2240 b32e0df3fa714e1e8b3a2faa643d2740_NeikiAnalytics.exe 28 PID 2240 wrote to memory of 2252 2240 b32e0df3fa714e1e8b3a2faa643d2740_NeikiAnalytics.exe 28 PID 2240 wrote to memory of 2252 2240 b32e0df3fa714e1e8b3a2faa643d2740_NeikiAnalytics.exe 28 PID 2240 wrote to memory of 2252 2240 b32e0df3fa714e1e8b3a2faa643d2740_NeikiAnalytics.exe 28 PID 2252 wrote to memory of 432 2252 rmass.exe 5 PID 2252 wrote to memory of 1136 2252 rmass.exe 20 PID 2252 wrote to memory of 2484 2252 rmass.exe 29 PID 2252 wrote to memory of 2484 2252 rmass.exe 29 PID 2252 wrote to memory of 2484 2252 rmass.exe 29 PID 2252 wrote to memory of 2484 2252 rmass.exe 29
Processes
-
C:\Windows\system32\winlogon.exewinlogon.exe1⤵PID:432
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1136
-
C:\Users\Admin\AppData\Local\Temp\b32e0df3fa714e1e8b3a2faa643d2740_NeikiAnalytics.exe"C:\Users\Admin\AppData\Local\Temp\b32e0df3fa714e1e8b3a2faa643d2740_NeikiAnalytics.exe"2⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2240 -
C:\Windows\SysWOW64\rmass.exe"C:\Windows\SysWOW64\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:2252 -
C:\Windows\SysWOW64\rmass.exe--k33p4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:2484
-
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
5KB
MD52b2c28a7a01f9584fe220ef84003427f
SHA15fc023df0b5064045eb8de7f2dbe26f07f6fec70
SHA2569e00af53b1d0c0f5270d94a666d95aa7b4dcb9fea49487c210c055c9dcfcc9eb
SHA51239192a8a91dec1abff25af8dac0cf39da4dfd51b3fb4f1ef0b4e776185d4280fbe8387c2ea778da7bbf2ce288b0bce4d23cbe8d9e87bbd250159044f5adbac78
-
Filesize
66KB
MD50320684102810468695f89b43d696e26
SHA12d215aab491ab35f8ae4bb90ac022bc4e0f30de9
SHA256fc835ad2c27b064342872d3663821d1fdf06ad8094ec1fe84ed3c50f1c94c968
SHA5126af585e00952ba39e90920ad995133eea4eef93c2287d957ecd4e5985720f98926272d33de09a990e5ba0cbde10072d9a340de0ad9cc53d0cfa14ee1f1e356af
-
Filesize
67KB
MD558906377e4eca9195c2f69a3ad441896
SHA1f4e07a80250590e439be396fccfcee9ac63597ae
SHA256aae037a4d6cf0aabcc44765bfd52bdecdc7096c0f4bce0be34ed2f62c4296f4f
SHA51234aadb5efb673ab0ed71358e00415a6916cd0e0fd14845ba648859284fdaa8fe34e2736a3e10b2765e9719267a6cd21dc3e19be681bebd491c7928659fe876f6
-
Filesize
1KB
MD5b10b13206b0f2cf3968050072f6979bf
SHA1699db21ba9cecf3f13ac3d76e22cfa41aa94da80
SHA2560eef3217095cb97b695c434e74d6314bf9e869a013d6e9c88e58c34576a276b4
SHA512d33bfd931be6676539507a69101d99fa4c5ef36b12422bd11f063b9b6a47b7444f6c4ad5f35e044714fdb872e96cd9fddf049e8329af1219483887f6ac5f4a5d
-
Filesize
64KB
MD543932c7bf6c84edaea5dd19bdd3d6c63
SHA15be14c725e4370c45661b76ed52b4ab667c4e76d
SHA256799ba7eb728a93b09a019b05b949f521b9bc40202ecce71571ffd42cec5a7467
SHA51289411d0062244711a408edb2de31386a72607c6b524ea6d438071218842005b74f69a8116804b3009106aed85c0148cfd088af6391abf2365f344b097be9e4e8