3f8fce77408a2e8c848a95306a615666899aad78a7ccb9ef44dca85a3cd4d542

General

Target

1639186869b2b075de94933256d63320_NeikiAnalytics.exe
Size

24KB
MD5

1639186869b2b075de94933256d63320
SHA1

88b42bca19afaf6d952b01097d25bcfb9a74e587
SHA256

3f8fce77408a2e8c848a95306a615666899aad78a7ccb9ef44dca85a3cd4d542
SHA512

f4d34c2e9d0ca225772591958293f9da1a9f396348c3ba5215799df2f59c61f4ad6cff5db646575d8f9bf7b5edf440c0459fb5c6541bb849b26bf433e91940e9
SSDEEP

768:jIUhfMX4ljI8V4DQhq9dV0SxvbV3j6C5moOCA:jnfhljUdV0SxvbV3jVOCA

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

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

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4B584950-5043-4b46-4B58-495050434b46}\IsInstalled = "1"	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4B584950-5043-4b46-4B58-495050434b46}\StubPath = "C:\\Windows\\system32\\ahuy.exe"	rmass.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4B584950-5043-4b46-4B58-495050434b46}	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4B584950-5043-4b46-4B58-495050434b46}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	rmass.exe

Sets file execution options in registry 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

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
1748	rmass.exe
2580	rmass.exe

Loads dropped DLL 3 IoCs

pid	Process
1308	1639186869b2b075de94933256d63320_NeikiAnalytics.exe
1308	1639186869b2b075de94933256d63320_NeikiAnalytics.exe
1748	rmass.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000b000000014b6d-1.dat	upx
behavioral1/memory/1308-2-0x0000000000020000-0x0000000000031000-memory.dmp	upx
behavioral1/memory/1748-10-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2580-22-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/1748-56-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2580-57-0x0000000000400000-0x0000000000411000-memory.dmp	upx

Windows security modification 2 TTPs 4 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

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

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

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ntdbg.exe	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	rmass.exe
File opened for modification	C:\Windows\SysWOW64\idbg32.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\rmass.exe	1639186869b2b075de94933256d63320_NeikiAnalytics.exe
File created	C:\Windows\SysWOW64\rmass.exe	1639186869b2b075de94933256d63320_NeikiAnalytics.exe
File created	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
File opened for modification	C:\Windows\SysWOW64\RECOVER32.DLL	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
1748	rmass.exe
1748	rmass.exe
1748	rmass.exe
2580	rmass.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1748	rmass.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1308 wrote to memory of 1748	1308	1639186869b2b075de94933256d63320_NeikiAnalytics.exe	28
PID 1308 wrote to memory of 1748	1308	1639186869b2b075de94933256d63320_NeikiAnalytics.exe	28
PID 1308 wrote to memory of 1748	1308	1639186869b2b075de94933256d63320_NeikiAnalytics.exe	28
PID 1308 wrote to memory of 1748	1308	1639186869b2b075de94933256d63320_NeikiAnalytics.exe	28
PID 1748 wrote to memory of 424	1748	rmass.exe	5
PID 1748 wrote to memory of 1200	1748	rmass.exe	21
PID 1748 wrote to memory of 2580	1748	rmass.exe	29
PID 1748 wrote to memory of 2580	1748	rmass.exe	29
PID 1748 wrote to memory of 2580	1748	rmass.exe	29
PID 1748 wrote to memory of 2580	1748	rmass.exe	29

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:424

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1200
- C:\Users\Admin\AppData\Local\Temp\1639186869b2b075de94933256d63320_NeikiAnalytics.exe
  "C:\Users\Admin\AppData\Local\Temp\1639186869b2b075de94933256d63320_NeikiAnalytics.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1308
- - 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:1748
  - - C:\Windows\SysWOW64\rmass.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:2580

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
937db2d34985ef52b3194d69f3e165b6

SHA1
b10b5b75dcb70666fad742c22087ea7030bfa11c

SHA256
a20e1e1bff598dc2f4f51bc9aab1c01254cb278e95652bf57ece3d953ce1f89b

SHA512
bb825f7e1c9f7b09d361afb98796cb12e59cdc28f818c0f12171444413324f78eb1127cacb2bf5be243dc9f5532119cfabadec775a82d398d0f02594c2556147

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

Filesize
25KB

MD5
fdf887ea700120ed0462119233f48da4

SHA1
5ac7d0f160270966d5cbb804a0eb210288d6d463

SHA256
2c7a43471cce43854d06fa7bb2f3218e08268e92fe33f27aca23fe4e952dc577

SHA512
989ab72456479379cba3c5b6dbd786e8e713aa0d7430cd2423ad8de31a98287a0a212c3d7e4fcee6bcac08170f8bf2df4b011b9efa3316d7e7bfe3cc9e6a9f97

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
c5e281e083d348b2bd1fb27b8e2cc08b

SHA1
68514d025f5662c31df065def87bc886c5a32219

SHA256
f14091461fefed03df97d42c6246e91bb3755a3cae4dc659d61de281a88af2a0

SHA512
4dbe0f181d0df5751c1a84178668efcdb0b3ff43f72e6bf3a0f36fe0e0dac0cf9f31754de8303f7286cd901fd8e02e433dc11d9598e4b0cdf241cace383ae90a

Download Submit
memory/1308-2-0x0000000000020000-0x0000000000031000-memory.dmp

Filesize
68KB

Download
memory/1308-8-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/1748-10-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1748-56-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2580-22-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2580-57-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads