Analysis
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max time kernel
149s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
17/05/2024, 04:59
Behavioral task
behavioral1
Sample
adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe
Resource
win10v2004-20240426-en
General
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Target
adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe
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Size
63KB
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MD5
adcd3bd5c6b1a479db5af9138a9a6980
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SHA1
1db9197b52e23d51b594ea04baf89166b94e8eef
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SHA256
7c93ceb712e21f475f5f1177f486134a68c93b1b225355522df64415cbd7942a
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SHA512
7539c62475b29c7cac1ae4cd201b021e5f44c5ee26a69e1ca2be81518377c2ae9cd9c03045dc8d18ad9e06cb3258851450a3acdcc605fc510bc9514bebcdba0d
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SSDEEP
768:rAUJmQCcmLCXQq6fsKiJYsIkjJVzqsVG5kuGKQLddOW/24WvgMb7rAY:sUNHFKQbIkHvGMdOp4Zu7MY
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\{53434647-4252-4254-5343-464742524254} rmass.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{53434647-4252-4254-5343-464742524254}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a" rmass.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{53434647-4252-4254-5343-464742524254}\IsInstalled = "1" rmass.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{53434647-4252-4254-5343-464742524254}\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 1824 rmass.exe 2092 rmass.exe -
Loads dropped DLL 3 IoCs
pid Process 2392 adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe 2392 adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe 1824 rmass.exe -
resource yara_rule behavioral1/memory/2392-0-0x0000000000400000-0x0000000000412000-memory.dmp upx behavioral1/files/0x000b0000000141a2-4.dat upx behavioral1/memory/2392-10-0x0000000000400000-0x0000000000412000-memory.dmp upx behavioral1/memory/1824-21-0x0000000000400000-0x0000000000412000-memory.dmp upx behavioral1/memory/1824-78-0x0000000000400000-0x0000000000412000-memory.dmp upx behavioral1/memory/2092-94-0x0000000000400000-0x0000000000412000-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 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\aset32.exe rmass.exe File opened for modification C:\Windows\SysWOW64\idbg32.exe rmass.exe File opened for modification C:\Windows\SysWOW64\ntdbg.exe rmass.exe File created 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\rmass.exe rmass.exe File opened for modification C:\Windows\SysWOW64\rmass.exe adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe File created C:\Windows\SysWOW64\rmass.exe adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe -
Drops file in Program Files directory 3 IoCs
description ioc Process 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 File opened for modification C:\Program Files (x86)\Common Files\System\winrnt.exe rmass.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1824 rmass.exe 1824 rmass.exe 1824 rmass.exe 2092 rmass.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2392 adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe Token: SeDebugPrivilege 1824 rmass.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 2392 wrote to memory of 1824 2392 adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe 28 PID 2392 wrote to memory of 1824 2392 adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe 28 PID 2392 wrote to memory of 1824 2392 adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe 28 PID 2392 wrote to memory of 1824 2392 adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe 28 PID 1824 wrote to memory of 436 1824 rmass.exe 5 PID 1824 wrote to memory of 1276 1824 rmass.exe 21 PID 1824 wrote to memory of 2092 1824 rmass.exe 29 PID 1824 wrote to memory of 2092 1824 rmass.exe 29 PID 1824 wrote to memory of 2092 1824 rmass.exe 29 PID 1824 wrote to memory of 2092 1824 rmass.exe 29
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:1276
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C:\Users\Admin\AppData\Local\Temp\adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe"C:\Users\Admin\AppData\Local\Temp\adcd3bd5c6b1a479db5af9138a9a6980_NeikiAnalytics.exe"2⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2392 -
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:1824 -
C:\Windows\SysWOW64\rmass.exe--k33p4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:2092
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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
MD5ce8edfd5dcc9587c24513dcda94554b6
SHA1962eb952542a51de6ef8c23619440121a16f0219
SHA256ad0e47b9790eae1890e477889b9ffc3c9b2e34d314839f289e005b56d0050d8e
SHA51298cb80bdec2dc67f544e57b884677504617027fb4b0ca654be3ffd6bcecfbafcae8d3bc7c12956750bfa4c82222e360ad2449b5a114ec76c0970a8da7254220c
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Filesize
66KB
MD5b2ac7a0a03883b8df9e4b5d4f86cffdc
SHA1e348895c4b7dd33b5bb26cccae335bf4cc12fc1d
SHA2563506b20660f341cd5850c1c7de4da08489fd5029ee08a154dc3c76164e09bd25
SHA5125e1dd82617bd6ebe05fae7e3407f70c34e7eb6f837633db83ea3046afc622243b83a1e7a636b8c4b75f1faa21bb97f58eb2ec61fac1c63dba91daf356bdc2c89
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Filesize
1KB
MD5b10b13206b0f2cf3968050072f6979bf
SHA1699db21ba9cecf3f13ac3d76e22cfa41aa94da80
SHA2560eef3217095cb97b695c434e74d6314bf9e869a013d6e9c88e58c34576a276b4
SHA512d33bfd931be6676539507a69101d99fa4c5ef36b12422bd11f063b9b6a47b7444f6c4ad5f35e044714fdb872e96cd9fddf049e8329af1219483887f6ac5f4a5d
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Filesize
63KB
MD5adcd3bd5c6b1a479db5af9138a9a6980
SHA11db9197b52e23d51b594ea04baf89166b94e8eef
SHA2567c93ceb712e21f475f5f1177f486134a68c93b1b225355522df64415cbd7942a
SHA5127539c62475b29c7cac1ae4cd201b021e5f44c5ee26a69e1ca2be81518377c2ae9cd9c03045dc8d18ad9e06cb3258851450a3acdcc605fc510bc9514bebcdba0d