7ed3c25a6dbef5127e84cc263dfc77333718b5c56166c870efe8c3167d5f3bc9

General

Target

3df695efa49df1378a5663f0bbfe9960_NeikiAnalytics.exe
Size

63KB
MD5

3df695efa49df1378a5663f0bbfe9960
SHA1

e3b7b1cd45041f400cafc40ac4a186fb533894c4
SHA256

7ed3c25a6dbef5127e84cc263dfc77333718b5c56166c870efe8c3167d5f3bc9
SHA512

0ec1e2bca891d90a8e581df6049f12ea328f127787e0397ccf0c66c2e3215c52785242aeb015d344076bad2f3630ccdeb4e46e631be8b56f48aae42b33dbd8b5
SSDEEP

768:rAUJmQCcmLCXQq6fsKiJYsIkjJVzqsVG5kuGKQLddOW/g4WvU+o/:sUNHFKQbIkHvGMdO747

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\FirewallDisableNotify = "5120"	rmass.exe
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

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
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

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

pid	Process
2528	rmass.exe
2724	rmass.exe

Loads dropped DLL 3 IoCs

pid	Process
2364	3df695efa49df1378a5663f0bbfe9960_NeikiAnalytics.exe
2364	3df695efa49df1378a5663f0bbfe9960_NeikiAnalytics.exe
2528	rmass.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2364-0-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/files/0x000c0000000143a8-4.dat	upx
behavioral1/memory/2364-11-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/memory/2528-12-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/memory/2528-85-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/memory/2724-96-0x0000000000400000-0x0000000000412000-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\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
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "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\winrnt.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\idbg32.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\rmass.exe	3df695efa49df1378a5663f0bbfe9960_NeikiAnalytics.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\ahuy.exe	rmass.exe
File created	C:\Windows\SysWOW64\ahuy.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 created	C:\Windows\SysWOW64\rmass.exe	3df695efa49df1378a5663f0bbfe9960_NeikiAnalytics.exe
File opened for modification	C:\Windows\SysWOW64\ntdbg.exe	rmass.exe
File created	C:\Windows\SysWOW64\ntdbg.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
2528	rmass.exe
2528	rmass.exe
2528	rmass.exe
2724	rmass.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2364	3df695efa49df1378a5663f0bbfe9960_NeikiAnalytics.exe
Token: SeDebugPrivilege	2528	rmass.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 2528	2364	3df695efa49df1378a5663f0bbfe9960_NeikiAnalytics.exe	28
PID 2364 wrote to memory of 2528	2364	3df695efa49df1378a5663f0bbfe9960_NeikiAnalytics.exe	28
PID 2364 wrote to memory of 2528	2364	3df695efa49df1378a5663f0bbfe9960_NeikiAnalytics.exe	28
PID 2364 wrote to memory of 2528	2364	3df695efa49df1378a5663f0bbfe9960_NeikiAnalytics.exe	28
PID 2528 wrote to memory of 436	2528	rmass.exe	5
PID 2528 wrote to memory of 1200	2528	rmass.exe	21
PID 2528 wrote to memory of 2724	2528	rmass.exe	29
PID 2528 wrote to memory of 2724	2528	rmass.exe	29
PID 2528 wrote to memory of 2724	2528	rmass.exe	29
PID 2528 wrote to memory of 2724	2528	rmass.exe	29

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1200
- C:\Users\Admin\AppData\Local\Temp\3df695efa49df1378a5663f0bbfe9960_NeikiAnalytics.exe
  "C:\Users\Admin\AppData\Local\Temp\3df695efa49df1378a5663f0bbfe9960_NeikiAnalytics.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2364
- - 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:2528
  - - C:\Windows\SysWOW64\rmass.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:2724

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
65KB

MD5
134aaeedbea4136bba2e5347d9031e39

SHA1
157ee029779a4986d565de297f66319768ff1258

SHA256
0467873096f9ea1736159ed75de73debf40e21ed4e067e40381aa2102b91a7e8

SHA512
03e17ca674b53e687971e8de7988414e1c376e26bef25b073d4f41beb572743673fc0255204e17055132f51796290ba42603fdc988fd1b3fa8949b99a8c50206

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

Filesize
66KB

MD5
5f42ece9f62ea8eb6353e9deaac98e8d

SHA1
602f3ba0d560373d87e7d005e7b0a92c525d80dc

SHA256
f1034d405d500bd3e4b60c6a10f57c1740cc99758b32b7a753ec3e5962a7c511

SHA512
e449e8f1c9693f548d3dd92d4677395df2f4c6f283722f03e849e12da46369dbd8d0f13c5b88a7e8f328356ba2c303b1812d18febdb5ee155b341984d3a80f24

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
63KB

MD5
3df695efa49df1378a5663f0bbfe9960

SHA1
e3b7b1cd45041f400cafc40ac4a186fb533894c4

SHA256
7ed3c25a6dbef5127e84cc263dfc77333718b5c56166c870efe8c3167d5f3bc9

SHA512
0ec1e2bca891d90a8e581df6049f12ea328f127787e0397ccf0c66c2e3215c52785242aeb015d344076bad2f3630ccdeb4e46e631be8b56f48aae42b33dbd8b5

Download Submit
memory/2364-0-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2364-11-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2528-12-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2528-24-0x0000000000360000-0x0000000000372000-memory.dmp

Filesize
72KB

Download
memory/2528-85-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2528-95-0x0000000000360000-0x0000000000372000-memory.dmp

Filesize
72KB

Download
memory/2724-96-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads