835db0285e02bfc7b1ddd6928ff0947a3320bc8e035e450c38e969ecd37e170f

General

Target

408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe
Size

46KB
MD5

408279eb29ace888de797a2438d55dd0
SHA1

4616d28aac86e4110046138da53dc1804bd38d9d
SHA256

835db0285e02bfc7b1ddd6928ff0947a3320bc8e035e450c38e969ecd37e170f
SHA512

56e9072b51321e1109c15e2bf4c29b32425f86c43f7e3fee5cb687b3a823ae8f6d78c7f46a2a24b012dd66736ad1e53a601805b140e275c73f0a75ced8aaed96
SSDEEP

768:jIUiy81EmX40ioo4v1UycfMYhc91KAf3mDYQKTjnl2NWcIXsaL5ZorJtbpttIkJ4:jwy81Emoo1UycfMYhc91Lf3mDYQKTh2g

Score

10^/10

evasion persistence trojan

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\UpdatesDisableNotify = "5120"	rmass.exe
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

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{484B554C-4249-4255-484B-554C42494255}\StubPath = "C:\\Windows\\system32\\ahuy.exe"	rmass.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{484B554C-4249-4255-484B-554C42494255}	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{484B554C-4249-4255-484B-554C42494255}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	rmass.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{484B554C-4249-4255-484B-554C42494255}\IsInstalled = "1"	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
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
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe	rmass.exe

Executes dropped EXE 2 IoCs

Processes:

rmass.exermass.exe

pid process

2528 rmass.exe
2664 rmass.exe
Loads dropped DLL 3 IoCs

Processes:

408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exermass.exe

pid process

2884 408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe
2884 408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe
2528 rmass.exe

pid	process
2528	rmass.exe
2664	rmass.exe

pid	process
2884	408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe
2884	408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe
2528	rmass.exe

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:

408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exermass.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\rmass.exe	408279eb29ace888de797a2438d55dd0_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\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
File opened for modification	C:\Windows\SysWOW64\rmass.exe	rmass.exe
File created	C:\Windows\SysWOW64\rmass.exe	408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe
File created	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

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\idbg32.exe	rmass.exe
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

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

rmass.exermass.exe

pid process

2528 rmass.exe
2528 rmass.exe
2528 rmass.exe
2664 rmass.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rmass.exe

description pid process

Token: SeDebugPrivilege 2528 rmass.exe

pid	process
2528	rmass.exe
2528	rmass.exe
2528	rmass.exe
2664	rmass.exe

description	pid	process
Token: SeDebugPrivilege	2528	rmass.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exermass.exe

description	pid	process	target process
PID 2884 wrote to memory of 2528	2884	408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe	rmass.exe
PID 2884 wrote to memory of 2528	2884	408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe	rmass.exe
PID 2884 wrote to memory of 2528	2884	408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe	rmass.exe
PID 2884 wrote to memory of 2528	2884	408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe	rmass.exe
PID 2528 wrote to memory of 424	2528	rmass.exe	winlogon.exe
PID 2528 wrote to memory of 1212	2528	rmass.exe	Explorer.EXE
PID 2528 wrote to memory of 2664	2528	rmass.exe	rmass.exe
PID 2528 wrote to memory of 2664	2528	rmass.exe	rmass.exe
PID 2528 wrote to memory of 2664	2528	rmass.exe	rmass.exe
PID 2528 wrote to memory of 2664	2528	rmass.exe	rmass.exe

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1212
- C:\Users\Admin\AppData\Local\Temp\408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe
  "C:\Users\Admin\AppData\Local\Temp\408279eb29ace888de797a2438d55dd0_NeikiAnalytics.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:2884
- - 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:2528
  - - C:\Windows\SysWOW64\rmass.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:2664

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

Replay Monitor

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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
46KB

MD5
99c97674593a58d3b9015194778a6419

SHA1
42cc52ae1bb2c16f500ad6286eb1d0159f3d4fd6

SHA256
b2ad728acaa556114ec2255dc183b3b48522b66a77769751c2ae91a962f0f4ea

SHA512
39e1a1a84e99352c31ad4ff32f63ab1ffb6502543a3d7bc80bb95df5704697bfc890cc4a07edcf2999134462d0fd9dfcc2e36ce4136ceaf50b0a584bf59ddbf1

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

Filesize
47KB

MD5
d80bfcb4bd2b7c8f808a480edb78ff85

SHA1
aa1a28c62e8cd62008b0fdac5498f1e37746017a

SHA256
4fb2e33d47cb5ea80ce2135d5143db41acee4f4ef0f52638fe50d4636fa2fd46

SHA512
3257d075338a44bb80da839391167c2520b52660ee09a4290741744e641a82c39894e4d30b795c54fcd0c5a2342df30bdea89fa47b67978cf90e693e23945d21

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
43KB

MD5
ddc611cd8bbac86f0b4480d7dbb7dbca

SHA1
7cdb6fffc1c8e7ad6fa3f372f0107d1594577df6

SHA256
77bceeef49c1bc513253680c13ef388148febece550392864a531f89b3795631

SHA512
62757f0e928691fb994f68f16f849c5dc71e06f5ab414ba51b718308a45a969cab0873a1fa462301d5e3ed778177da7ca788b2c881746d6011bd15537fce4ab8

Download Submit
memory/2528-53-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2664-54-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2884-7-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads