5a8bf71b5b8e9f3b067417321012130eda95598d7975e776b0f5330ba922b68e

General

Target

3cda395837dad0ebb37b8a5389f92b80_NeikiAnalytics.exe
Size

22KB
MD5

3cda395837dad0ebb37b8a5389f92b80
SHA1

bcce629fc6a800edd0c7aba9f2250439a04b4814
SHA256

5a8bf71b5b8e9f3b067417321012130eda95598d7975e776b0f5330ba922b68e
SHA512

b0e2c01542b4b6ac5ab5d511f1fb702508f1332b278b2af98ac08097ab968212c393f1d9f1b35b65e088868b6fc016e927e2433515c720e8e4b5420564719a6d
SSDEEP

384:UBWoC5GDr6wc/w3HgM6vDUTAXBGCVf4WVlFvX8Mb7a6MQ:rRkiLw3HsDSARGG/MMb7r5

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
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{554F5448-4350-4851-554F-544843504851}	rmass.exe
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

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
2392	rmass.exe
1256	rmass.exe

Loads dropped DLL 3 IoCs

pid	Process
2140	3cda395837dad0ebb37b8a5389f92b80_NeikiAnalytics.exe
2140	3cda395837dad0ebb37b8a5389f92b80_NeikiAnalytics.exe
2392	rmass.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2140-3-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/files/0x000b00000001226d-12.dat	upx
behavioral1/memory/2140-11-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2392-13-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/1256-26-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2392-60-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/1256-61-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2392-100-0x0000000000420000-0x0000000000431000-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\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\idbg32.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\rmass.exe	3cda395837dad0ebb37b8a5389f92b80_NeikiAnalytics.exe
File created	C:\Windows\SysWOW64\rmass.exe	3cda395837dad0ebb37b8a5389f92b80_NeikiAnalytics.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\rmass.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\aset32.exe	rmass.exe
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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2392	rmass.exe
2392	rmass.exe
2392	rmass.exe
1256	rmass.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2140	3cda395837dad0ebb37b8a5389f92b80_NeikiAnalytics.exe
Token: SeDebugPrivilege	2392	rmass.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2140 wrote to memory of 2392	2140	3cda395837dad0ebb37b8a5389f92b80_NeikiAnalytics.exe	28
PID 2140 wrote to memory of 2392	2140	3cda395837dad0ebb37b8a5389f92b80_NeikiAnalytics.exe	28
PID 2140 wrote to memory of 2392	2140	3cda395837dad0ebb37b8a5389f92b80_NeikiAnalytics.exe	28
PID 2140 wrote to memory of 2392	2140	3cda395837dad0ebb37b8a5389f92b80_NeikiAnalytics.exe	28
PID 2392 wrote to memory of 432	2392	rmass.exe	5
PID 2392 wrote to memory of 1196	2392	rmass.exe	21
PID 2392 wrote to memory of 1256	2392	rmass.exe	29
PID 2392 wrote to memory of 1256	2392	rmass.exe	29
PID 2392 wrote to memory of 1256	2392	rmass.exe	29
PID 2392 wrote to memory of 1256	2392	rmass.exe	29

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1196
- C:\Users\Admin\AppData\Local\Temp\3cda395837dad0ebb37b8a5389f92b80_NeikiAnalytics.exe
  "C:\Users\Admin\AppData\Local\Temp\3cda395837dad0ebb37b8a5389f92b80_NeikiAnalytics.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2140
- - 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:2392
  - - C:\Windows\SysWOW64\rmass.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:1256

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
5005f54b47bdc5658d1e77e5571963e3

SHA1
db65dc1133206ee49c56053e09679d8983d5c96b

SHA256
873b30ab039b8634a663f8504d0cb558b30e53a9812bf7fe4957653c02e24dc1

SHA512
390d1db52d8c3c437f364556f5696ab8714f31c71b9cbf6b4d6f1f80c2feeb411e24f3945c9ec60c2ac4634b082c14028018aaee13e76df752bca779f83de541

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

Filesize
25KB

MD5
9b6fbd3ccf16c717517dac3f4998bdce

SHA1
e07cb138abe4975de96a0270a3b8725801cbaa04

SHA256
e69372af6cb0f7ce8f05b7f004ecff33654b94ea505846f68282b07454ea63b3

SHA512
f2381cca1383f9f620fe1adff04b7cf532f08185f92b3314b8de7935ef93624da37ee5821bb4f16e68892de1af7fcab9b38d1494f4efddcc42af30f91d58862d

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

Filesize
22KB

MD5
3cda395837dad0ebb37b8a5389f92b80

SHA1
bcce629fc6a800edd0c7aba9f2250439a04b4814

SHA256
5a8bf71b5b8e9f3b067417321012130eda95598d7975e776b0f5330ba922b68e

SHA512
b0e2c01542b4b6ac5ab5d511f1fb702508f1332b278b2af98ac08097ab968212c393f1d9f1b35b65e088868b6fc016e927e2433515c720e8e4b5420564719a6d

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

Filesize
1KB

MD5
b10b13206b0f2cf3968050072f6979bf

SHA1
699db21ba9cecf3f13ac3d76e22cfa41aa94da80

SHA256
0eef3217095cb97b695c434e74d6314bf9e869a013d6e9c88e58c34576a276b4

SHA512
d33bfd931be6676539507a69101d99fa4c5ef36b12422bd11f063b9b6a47b7444f6c4ad5f35e044714fdb872e96cd9fddf049e8329af1219483887f6ac5f4a5d

Download Submit
memory/1256-61-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1256-26-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2140-11-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2140-3-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2392-13-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2392-60-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2392-100-0x0000000000420000-0x0000000000431000-memory.dmp

Filesize
68KB

Download
memory/2392-25-0x0000000000420000-0x0000000000431000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads