b5b1a9775099da86e26583548515a4a0482eee574d68e44638dc6dc898d29fa8

General

Target

b5b1a9775099da86e26583548515a4a0482eee574d68e44638dc6dc898d29fa8_NeikiAnalytics.exe
Size

43KB
MD5

77056b14a396ea62f217a5d7d41dcac0
SHA1

5281b99c8af2d7579a475402eef39749448340e3
SHA256

b5b1a9775099da86e26583548515a4a0482eee574d68e44638dc6dc898d29fa8
SHA512

2b95d414fbe9966b108bbe14837b15f4f1a84b0109238af0908dc65ce51ca178880288c3b357249fac8dc9111d363bcdbfe642aea0d69340c5943dda21e5519a
SSDEEP

768:WAUJmQCcmLCXQq6fsKiJYsIkjJVzqsVG5kuGVAQvRWri:RUNHFKQbIkHvGkAzi

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

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

Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{554F5448-4350-4851-554F-544843504851}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	rmass.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{554F5448-4350-4851-554F-544843504851}\IsInstalled = "1"	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{554F5448-4350-4851-554F-544843504851}\StubPath = "C:\\Windows\\system32\\ahuy.exe"	rmass.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{554F5448-4350-4851-554F-544843504851}	rmass.exe

Drops file in Drivers directory 1 IoCs

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

Event Triggered Execution: Image File Execution Options Injection 1 TTPs 3 IoCs

persistence

Image File Execution Options Injection

T1546.012

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
2392	rmass.exe
2360	rmass.exe

Loads dropped DLL 3 IoCs

pid	Process
2040	b5b1a9775099da86e26583548515a4a0482eee574d68e44638dc6dc898d29fa8_NeikiAnalytics.exe
2040	b5b1a9775099da86e26583548515a4a0482eee574d68e44638dc6dc898d29fa8_NeikiAnalytics.exe
2392	rmass.exe

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
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\rmass.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\rmass.exe	b5b1a9775099da86e26583548515a4a0482eee574d68e44638dc6dc898d29fa8_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 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\winrnt.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\idbg32.exe	rmass.exe
File created	C:\Windows\SysWOW64\rmass.exe	b5b1a9775099da86e26583548515a4a0482eee574d68e44638dc6dc898d29fa8_NeikiAnalytics.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\aset32.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 4 IoCs

pid	Process
2392	rmass.exe
2392	rmass.exe
2392	rmass.exe
2360	rmass.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2040	b5b1a9775099da86e26583548515a4a0482eee574d68e44638dc6dc898d29fa8_NeikiAnalytics.exe
Token: SeDebugPrivilege	2392	rmass.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 2392	2040	b5b1a9775099da86e26583548515a4a0482eee574d68e44638dc6dc898d29fa8_NeikiAnalytics.exe	28
PID 2040 wrote to memory of 2392	2040	b5b1a9775099da86e26583548515a4a0482eee574d68e44638dc6dc898d29fa8_NeikiAnalytics.exe	28
PID 2040 wrote to memory of 2392	2040	b5b1a9775099da86e26583548515a4a0482eee574d68e44638dc6dc898d29fa8_NeikiAnalytics.exe	28
PID 2040 wrote to memory of 2392	2040	b5b1a9775099da86e26583548515a4a0482eee574d68e44638dc6dc898d29fa8_NeikiAnalytics.exe	28
PID 2392 wrote to memory of 432	2392	rmass.exe	5
PID 2392 wrote to memory of 1204	2392	rmass.exe	21
PID 2392 wrote to memory of 2360	2392	rmass.exe	29
PID 2392 wrote to memory of 2360	2392	rmass.exe	29
PID 2392 wrote to memory of 2360	2392	rmass.exe	29
PID 2392 wrote to memory of 2360	2392	rmass.exe	29

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:432

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1204
- C:\Users\Admin\AppData\Local\Temp\b5b1a9775099da86e26583548515a4a0482eee574d68e44638dc6dc898d29fa8_NeikiAnalytics.exe
  "C:\Users\Admin\AppData\Local\Temp\b5b1a9775099da86e26583548515a4a0482eee574d68e44638dc6dc898d29fa8_NeikiAnalytics.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2040
- - C:\Windows\SysWOW64\rmass.exe
    "C:\Windows\system32\rmass.exe"
    3⤵
    - Windows security bypass
    - Boot or Logon Autostart Execution: Active Setup
    - Drops file in Drivers directory
    - Event Triggered Execution: Image File Execution Options Injection
    - 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:2392
  - - C:\Windows\SysWOW64\rmass.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:2360

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Winlogon Helper DLL

1

T1547.004

Event Triggered Execution

1

T1546

Image File Execution Options Injection

1

T1546.012

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Winlogon Helper DLL

1

T1547.004

Event Triggered Execution

1

T1546

Image File Execution Options Injection

1

T1546.012

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
45KB

MD5
c2862663c6bd52518d97f23394a5fb8f

SHA1
1ff65a76552d39b17eb9b2be9fcff5db9db82f65

SHA256
283ed975cbaa3931b9ab2228dafdc5142a628e9b1bf8e386e2a85600964622f2

SHA512
023d925bbc3fc4ebfe786012524e52fb36b12e5025262ea447e995ee40a40122ce6ee737b8d6ffa83a9e4c7eb47154edfbb79bd3ccc08b67a8b2c2cab35323b5

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

Filesize
46KB

MD5
b405d38306e9cb1599c16233b082cee5

SHA1
f0b458da2e4e3603ad8e82cca67809c01efe200c

SHA256
bdc5c016504c25c9cde41d13033093fff861bd236e8474a1ff684d682412bced

SHA512
eca54e00c7e7f318af53c30a7a885ea6bf41c5ac30df3de11b4c34727f5f82d6d0c7b2443b03768b92cd1dee82c0d2027e0b9ed05accd4bd3c2dd343c01d9038

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
77056b14a396ea62f217a5d7d41dcac0

SHA1
5281b99c8af2d7579a475402eef39749448340e3

SHA256
b5b1a9775099da86e26583548515a4a0482eee574d68e44638dc6dc898d29fa8

SHA512
2b95d414fbe9966b108bbe14837b15f4f1a84b0109238af0908dc65ce51ca178880288c3b357249fac8dc9111d363bcdbfe642aea0d69340c5943dda21e5519a

Download Submit
memory/2040-9-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2360-56-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2392-55-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads