Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system - submitted
01/06/2024, 06:04
Behavioral task
behavioral1
Sample
902884ed2a763571b49e228a8ab256f0_NeikiAnalytics.exe
Resource
win7-20240221-en
windows7-x64
14 signatures
150 seconds
Behavioral task
behavioral2
Sample
902884ed2a763571b49e228a8ab256f0_NeikiAnalytics.exe
Resource
win10v2004-20240508-en
windows10-2004-x64
13 signatures
150 seconds
General
- Target 902884ed2a763571b49e228a8ab256f0_NeikiAnalytics.exe
- Size 64KB
- Sample240601-gst6qscc2t
- SHA256 a44fa755fe8df337dc1f29e1a3563ab2f5cd753902d9726b3ae649164986d50e
- MD5 902884ed2a763571b49e228a8ab256f0
- SHA1 c2942748edc8fd422a5f1f0ee4d1a11463237fa6
- SHA512 db211c294355f32f6bca40dfad9620b82dc5f00096fdf8f13c3acd9edb3d9c116f57c91a74e3279d4654986760c15b7cb5c6de2ea6fa5fa94f755ecc9c2efad8
- SSDEEP 768:rAUJmQCcmLCXQq6fsKiJYsIkjJVzqsVG5kuGKQLddOW/O4Wv904jF:sUNHFKQbIkHvGMdOh4004p
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
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 (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4256524B-4950-5453-4256-524B49505453}\IsInstalled = "1" rmass.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4256524B-4950-5453-4256-524B49505453}\StubPath = "C:\\Windows\\system32\\ahuy.exe" rmass.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4256524B-4950-5453-4256-524B49505453} rmass.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4256524B-4950-5453-4256-524B49505453}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a" 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 2476 rmass.exe 3360 rmass.exe -
resource yara_rule behavioral2/memory/4520-0-0x0000000000400000-0x0000000000412000-memory.dmp upx behavioral2/files/0x0008000000023406-6.dat upx behavioral2/memory/4520-7-0x0000000000400000-0x0000000000412000-memory.dmp upx behavioral2/memory/3360-17-0x0000000000400000-0x0000000000412000-memory.dmp upx behavioral2/memory/2476-51-0x0000000000400000-0x0000000000412000-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}\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\rmass.exe rmass.exe File opened for modification C:\Windows\SysWOW64\rmass.exe 902884ed2a763571b49e228a8ab256f0_NeikiAnalytics.exe File created C:\Windows\SysWOW64\rmass.exe 902884ed2a763571b49e228a8ab256f0_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\RECOVER32.DLL rmass.exe File created C:\Windows\SysWOW64\RECOVER32.DLL rmass.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\winrnt.exe rmass.exe File opened for modification C:\Windows\SysWOW64\aset32.exe rmass.exe File opened for modification C:\Windows\SysWOW64\idbg32.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 2476 rmass.exe 2476 rmass.exe 2476 rmass.exe 2476 rmass.exe 2476 rmass.exe 2476 rmass.exe 3360 rmass.exe 3360 rmass.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4520 902884ed2a763571b49e228a8ab256f0_NeikiAnalytics.exe Token: SeDebugPrivilege 2476 rmass.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4520 wrote to memory of 2476 4520 902884ed2a763571b49e228a8ab256f0_NeikiAnalytics.exe 82 PID 4520 wrote to memory of 2476 4520 902884ed2a763571b49e228a8ab256f0_NeikiAnalytics.exe 82 PID 4520 wrote to memory of 2476 4520 902884ed2a763571b49e228a8ab256f0_NeikiAnalytics.exe 82 PID 2476 wrote to memory of 628 2476 rmass.exe 5 PID 2476 wrote to memory of 3480 2476 rmass.exe 56 PID 2476 wrote to memory of 3360 2476 rmass.exe 83 PID 2476 wrote to memory of 3360 2476 rmass.exe 83 PID 2476 wrote to memory of 3360 2476 rmass.exe 83
Processes
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C:\Windows\system32\winlogon.exewinlogon.exe1⤵PID:628
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3480
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C:\Users\Admin\AppData\Local\Temp\902884ed2a763571b49e228a8ab256f0_NeikiAnalytics.exe"C:\Users\Admin\AppData\Local\Temp\902884ed2a763571b49e228a8ab256f0_NeikiAnalytics.exe"2⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4520 -
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:2476 -
C:\Windows\SysWOW64\rmass.exe--k33p4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:3360
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\RECOVER32.DLL
- Size 5KB
- SHA256 9e00af53b1d0c0f5270d94a666d95aa7b4dcb9fea49487c210c055c9dcfcc9eb
- MD5 2b2c28a7a01f9584fe220ef84003427f
- SHA1 5fc023df0b5064045eb8de7f2dbe26f07f6fec70
- SHA512 39192a8a91dec1abff25af8dac0cf39da4dfd51b3fb4f1ef0b4e776185d4280fbe8387c2ea778da7bbf2ce288b0bce4d23cbe8d9e87bbd250159044f5adbac78
- SSDEEP 48:6CsrGV5e2/WJbm73k2vZcsrkqSq2cxc2G5ZwJOFl:SqV5Roa73kQ/kqqAD
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\ahuy.exe
- Size 66KB
- SHA256 4479ae1d44d166219a20b676b45956ea262aabb8ffcde260bc7542345b340930
- MD5 9eb62db183383177948423686f21c095
- SHA1 3913391a7e812bdd1306a95399f6531c089b27a5
- SHA512 1f57e473f3fd3932b8b33bd94bd675b163b82a26628d61bb1fad3144be3f28a3ce6ea5844e247305b5b53f4c3c41febdd11a5dd18ad6c5e06ade7bc8bd3c0933
- SSDEEP 768:jIU71QIJzzpUwJBCVNNS/JI62yPS1IjWcHakKI9qcN7mWiLzKVBt:jDQgzFUoBYNNSS62yPSajWgROQ
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\ntdbg.exe
- Size 67KB
- SHA256 be5ef9df49be6765011e813705ece4a2e591ff1b34adcfa77e426dff499a5bc7
- MD5 421ba244a27f1e88ad73f9abe0049491
- SHA1 0adf4e147789ba62965615c08cc8af6d1e12ef44
- SHA512 70de038f19224408f2a7cace2e885c3d388c4156a9c265c6bd5bd4f4cca493ba74b09f9272f79405ec0d7fe34b4c8a5401c6986b2e2ab3e118fafa73f09ab5d0
- SSDEEP 1536:EIlHgnbBXX/ml5NW55mD5q3SdKUp4nOJPdkAk:RAbBvmVT5qYK+4ylkd
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\rmass.exe
- Size 64KB
- SHA256 a44fa755fe8df337dc1f29e1a3563ab2f5cd753902d9726b3ae649164986d50e
- MD5 902884ed2a763571b49e228a8ab256f0
- SHA1 c2942748edc8fd422a5f1f0ee4d1a11463237fa6
- SHA512 db211c294355f32f6bca40dfad9620b82dc5f00096fdf8f13c3acd9edb3d9c116f57c91a74e3279d4654986760c15b7cb5c6de2ea6fa5fa94f755ecc9c2efad8
- SSDEEP 768:rAUJmQCcmLCXQq6fsKiJYsIkjJVzqsVG5kuGKQLddOW/O4Wv904jF:sUNHFKQbIkHvGMdOh4004p
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\System32\drivers\etc\hosts
- Size 1KB
- SHA256 15c7218eb9cef5fa0573db657b15ce3a5f0e0609f1166df8098ca7152df505b4
- MD5 6f47b62de25d1745e296a06b3f98ed19
- SHA1 a688bb35a4c8a5cc198985d624a1b5a6ac5b9f6f
- SHA512 dea26fff8060f44bf20fe4fff2ecbacf428727f10c0f5886fb4813e28fce9cbc3d088337c84edd9857b18514c83f1bb1cf0f51518aaecef09f30e921f4d758d7
- MD5 SHA1 SHA512