fd2392f64ff025cc8a9c720032b96752cb07c2f9eaa49c27ba4e229420cb6ad5

General

Target

5dccf301e9a4c227dd5a3a80ec06db40_NeikiAnalytics.exe
Size

24KB
MD5

5dccf301e9a4c227dd5a3a80ec06db40
SHA1

61c7d337ce6e504ffc4d9ddca9415e954bf5f4be
SHA256

fd2392f64ff025cc8a9c720032b96752cb07c2f9eaa49c27ba4e229420cb6ad5
SHA512

dd20971ba159ae01839c667273b94ec59222f30d2869641629b73fd5a5bd7b1ad845a453343800c74702611fa36377f707a0452bf83c6f55e95635293f7d939f
SSDEEP

768:jIUpzzZW+0ZvPPRIKZrwQWiLzKBSuAOaDPj8B:jTzkxHfhwIQPwH8B

Score

10^/10

evasion persistence trojan upx

Malware Config

Signatures

Windows security bypass 2 TTPs 4 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

rmass.exe

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

Processes:

rmass.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts rmass.exe

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

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

rmass.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4748505A-5247-4643-4748-505A52474643}	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4748505A-5247-4643-4748-505A52474643}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	rmass.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4748505A-5247-4643-4748-505A52474643}\IsInstalled = "1"	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4748505A-5247-4643-4748-505A52474643}\StubPath = "C:\\Windows\\system32\\ahuy.exe"	rmass.exe

Sets file execution options in registry 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

rmass.exe

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

Processes:

rmass.exermass.exe

pid process

1868 rmass.exe
2648 rmass.exe
Loads dropped DLL 3 IoCs

Processes:

5dccf301e9a4c227dd5a3a80ec06db40_NeikiAnalytics.exermass.exe

pid process

2328 5dccf301e9a4c227dd5a3a80ec06db40_NeikiAnalytics.exe
2328 5dccf301e9a4c227dd5a3a80ec06db40_NeikiAnalytics.exe
1868 rmass.exe

pid	process
1868	rmass.exe
2648	rmass.exe

pid	process
2328	5dccf301e9a4c227dd5a3a80ec06db40_NeikiAnalytics.exe
2328	5dccf301e9a4c227dd5a3a80ec06db40_NeikiAnalytics.exe
1868	rmass.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
\Windows\SysWOW64\rmass.exe	upx
behavioral1/memory/2328-2-0x0000000000020000-0x0000000000031000-memory.dmp	upx
behavioral1/memory/1868-10-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2648-22-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/1868-56-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2648-57-0x0000000000400000-0x0000000000411000-memory.dmp	upx

Windows security modification 2 TTPs 4 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

rmass.exe

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

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

rmass.exe

description	ioc	process
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
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

Drops file in System32 directory 12 IoCs

Processes:

rmass.exe5dccf301e9a4c227dd5a3a80ec06db40_NeikiAnalytics.exe

description	ioc	process
File created	C:\Windows\SysWOW64\ntdbg.exe	rmass.exe
File opened for modification	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\rmass.exe	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\rmass.exe	5dccf301e9a4c227dd5a3a80ec06db40_NeikiAnalytics.exe
File created	C:\Windows\SysWOW64\rmass.exe	5dccf301e9a4c227dd5a3a80ec06db40_NeikiAnalytics.exe
File opened for modification	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

Drops file in Program Files directory 3 IoCs

Processes:

rmass.exe

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

Processes:

rmass.exermass.exe

pid process

1868 rmass.exe
1868 rmass.exe
1868 rmass.exe
2648 rmass.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rmass.exe

description pid process

Token: SeDebugPrivilege 1868 rmass.exe

pid	process
1868	rmass.exe
1868	rmass.exe
1868	rmass.exe
2648	rmass.exe

description	pid	process
Token: SeDebugPrivilege	1868	rmass.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

5dccf301e9a4c227dd5a3a80ec06db40_NeikiAnalytics.exermass.exe

description	pid	process	target process
PID 2328 wrote to memory of 1868	2328	5dccf301e9a4c227dd5a3a80ec06db40_NeikiAnalytics.exe	rmass.exe
PID 2328 wrote to memory of 1868	2328	5dccf301e9a4c227dd5a3a80ec06db40_NeikiAnalytics.exe	rmass.exe
PID 2328 wrote to memory of 1868	2328	5dccf301e9a4c227dd5a3a80ec06db40_NeikiAnalytics.exe	rmass.exe
PID 2328 wrote to memory of 1868	2328	5dccf301e9a4c227dd5a3a80ec06db40_NeikiAnalytics.exe	rmass.exe
PID 1868 wrote to memory of 436	1868	rmass.exe	winlogon.exe
PID 1868 wrote to memory of 1204	1868	rmass.exe	Explorer.EXE
PID 1868 wrote to memory of 2648	1868	rmass.exe	rmass.exe
PID 1868 wrote to memory of 2648	1868	rmass.exe	rmass.exe
PID 1868 wrote to memory of 2648	1868	rmass.exe	rmass.exe
PID 1868 wrote to memory of 2648	1868	rmass.exe	rmass.exe

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:436

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1204

C:\Users\Admin\AppData\Local\Temp\5dccf301e9a4c227dd5a3a80ec06db40_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\5dccf301e9a4c227dd5a3a80ec06db40_NeikiAnalytics.exe"
2⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2328

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:1868

C:\Windows\SysWOW64\rmass.exe
--k33p
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:2648

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

3

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

3

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\RECOVER32.DLL

Filesize
5KB

MD5
2b2c28a7a01f9584fe220ef84003427f

SHA1
5fc023df0b5064045eb8de7f2dbe26f07f6fec70

SHA256
9e00af53b1d0c0f5270d94a666d95aa7b4dcb9fea49487c210c055c9dcfcc9eb

SHA512
39192a8a91dec1abff25af8dac0cf39da4dfd51b3fb4f1ef0b4e776185d4280fbe8387c2ea778da7bbf2ce288b0bce4d23cbe8d9e87bbd250159044f5adbac78

Download Submit
C:\Windows\SysWOW64\ahuy.exe

Filesize
24KB

MD5
c5530108bd7f09ed8f5b893fdab94887

SHA1
7483b169eb2f987060e448949e7946befd8a9069

SHA256
6db6e7eb9ed137996a5f0cfe7d50e71abc1f28b061831e2ffa1839a8cd277214

SHA512
1867907794a580c2dfce44253eff95be2f2ec1fcf140a3d8c6702e343a694de6dd2c62b56a8d4e99b31145006a4e6bc99db9c06cf0ea7e9d518b4d99955ee3c8

Download Submit
C:\Windows\SysWOW64\ntdbg.exe

Filesize
25KB

MD5
2ec6448dd90568ddbfc3c865825d0e78

SHA1
8b2e81043cd80989027722a851862156742e4dfe

SHA256
d398323d54438cb06a5f3b95a85b498b5ee43c2a3d7118538a9515088b3c06c2

SHA512
d42a04d1e11381fcfb2de4b927c3d1ee6a0fadb109ae1ea65837c0a2798b4ce94ecf028a8cc0262da4f0ac4907604b8624f1276cc903d92db577fef8d05d8c21

Download Submit
C:\Windows\System32\drivers\etc\hosts

Filesize
1KB

MD5
b10b13206b0f2cf3968050072f6979bf

SHA1
699db21ba9cecf3f13ac3d76e22cfa41aa94da80

SHA256
0eef3217095cb97b695c434e74d6314bf9e869a013d6e9c88e58c34576a276b4

SHA512
d33bfd931be6676539507a69101d99fa4c5ef36b12422bd11f063b9b6a47b7444f6c4ad5f35e044714fdb872e96cd9fddf049e8329af1219483887f6ac5f4a5d

Download Submit
\Windows\SysWOW64\rmass.exe

Filesize
22KB

MD5
fbab9559e093d5950e46cd306aa4893a

SHA1
8d1f03b01c855f1dabe5216f7e80712bef58d36a

SHA256
94a41162afd38c19d8ec24909ed29a8a8f94693cf0e757308c412ec99f6a4445

SHA512
837ebd4dc12d9da6612cab8ae39a122a3512bf2b9f9ae4b8f43a2fc570c6c417dcf4c1cd8d635bee48ee1139dd5bb9d8876ca03cfdbefba82afce2d7bc9d5bd4

Download Submit
memory/1868-10-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1868-56-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2328-2-0x0000000000020000-0x0000000000031000-memory.dmp

Filesize
68KB

Download
memory/2328-8-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2648-22-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2648-57-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads