bb0fc3124698ba170480c2123eada0e2661b053ca69d9c25c7f94a7c542e515b

General

Target

431c16d5a7503dfdebe8be0502978dc0_NeikiAnalytics.exe
Size

22KB
MD5

431c16d5a7503dfdebe8be0502978dc0
SHA1

e74fac6c6a63df58fda922fa57d3b9076646ba58
SHA256

bb0fc3124698ba170480c2123eada0e2661b053ca69d9c25c7f94a7c542e515b
SHA512

b84c37a27e1b7477130c648de4bbbe0f943848fe2be639106911f1590c4a3eaa96e57bce07a70699ebba88643dd13aa09f81a300a26a46a39d6f51329fa675c1
SSDEEP

384:UBWoC5GDr6wc/w3HgM6vDUTAXBGCVf4WVlFvX8Mb7a6lXr:rRkiLw3HsDSARGG/MMb7rlXr

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\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

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\{5350444F-4846-4d41-5350-444F48464d41}	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5350444F-4846-4d41-5350-444F48464d41}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	rmass.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5350444F-4846-4d41-5350-444F48464d41}\IsInstalled = "1"	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5350444F-4846-4d41-5350-444F48464d41}\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
3660	rmass.exe
2968	rmass.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1972-0-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral2/files/0x000600000002327d-5.dat	upx
behavioral2/memory/1972-9-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral2/memory/3660-13-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral2/memory/2968-19-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral2/memory/3660-53-0x0000000000400000-0x0000000000411000-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\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

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	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
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}	rmass.exe

Drops file in System32 directory 12 IoCs

description	ioc	Process
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\RECOVER32.DLL	rmass.exe
File created	C:\Windows\SysWOW64\RECOVER32.DLL	rmass.exe
File opened for modification	C:\Windows\SysWOW64\rmass.exe	rmass.exe
File created	C:\Windows\SysWOW64\rmass.exe	431c16d5a7503dfdebe8be0502978dc0_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\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	431c16d5a7503dfdebe8be0502978dc0_NeikiAnalytics.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 8 IoCs

pid	Process
3660	rmass.exe
3660	rmass.exe
3660	rmass.exe
3660	rmass.exe
3660	rmass.exe
3660	rmass.exe
2968	rmass.exe
2968	rmass.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1972	431c16d5a7503dfdebe8be0502978dc0_NeikiAnalytics.exe
Token: SeDebugPrivilege	3660	rmass.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 3660	1972	431c16d5a7503dfdebe8be0502978dc0_NeikiAnalytics.exe	83
PID 1972 wrote to memory of 3660	1972	431c16d5a7503dfdebe8be0502978dc0_NeikiAnalytics.exe	83
PID 1972 wrote to memory of 3660	1972	431c16d5a7503dfdebe8be0502978dc0_NeikiAnalytics.exe	83
PID 3660 wrote to memory of 612	3660	rmass.exe	5
PID 3660 wrote to memory of 3492	3660	rmass.exe	56
PID 3660 wrote to memory of 2968	3660	rmass.exe	84
PID 3660 wrote to memory of 2968	3660	rmass.exe	84
PID 3660 wrote to memory of 2968	3660	rmass.exe	84

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:612

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3492
- C:\Users\Admin\AppData\Local\Temp\431c16d5a7503dfdebe8be0502978dc0_NeikiAnalytics.exe
  "C:\Users\Admin\AppData\Local\Temp\431c16d5a7503dfdebe8be0502978dc0_NeikiAnalytics.exe"
  2⤵
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1972
- - 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
    - 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:3660
  - - C:\Windows\SysWOW64\rmass.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:2968

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
24KB

MD5
7f37cc4a6681fa4d02222f2afe29b364

SHA1
67ec8420fa5ebb050d097417a083f80686be7083

SHA256
b2b4f813cf76c262f23eacebff02930ea4b7be8c37c25093ba0de1cb5eb6c812

SHA512
c19e0b5b5f5b2f44eb9118867b44700b03102914fa2c942d0585437a5c93b274596192ce63d11f06467f7c7949f8eded4091d2975c913ba626ca9dcca983d4f6

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

Filesize
25KB

MD5
395d53953e495e464c24f36a7417addb

SHA1
1861050bf7f4989628c117da9a6e5da16450238a

SHA256
c49d86ea02e56c3d5a60d815a641a7fc577490afad73f44f1a0f4287c7e237dc

SHA512
aa28dae851baf179654a5f23c56f21ac5e3d65a5cb9fd0bb416d2fd51dee397b75aebde540c8504d3cf1644c1a2fcf326d8110592b9be8138d4220253bc7ef86

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

Filesize
22KB

MD5
431c16d5a7503dfdebe8be0502978dc0

SHA1
e74fac6c6a63df58fda922fa57d3b9076646ba58

SHA256
bb0fc3124698ba170480c2123eada0e2661b053ca69d9c25c7f94a7c542e515b

SHA512
b84c37a27e1b7477130c648de4bbbe0f943848fe2be639106911f1590c4a3eaa96e57bce07a70699ebba88643dd13aa09f81a300a26a46a39d6f51329fa675c1

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

Filesize
1KB

MD5
6f47b62de25d1745e296a06b3f98ed19

SHA1
a688bb35a4c8a5cc198985d624a1b5a6ac5b9f6f

SHA256
15c7218eb9cef5fa0573db657b15ce3a5f0e0609f1166df8098ca7152df505b4

SHA512
dea26fff8060f44bf20fe4fff2ecbacf428727f10c0f5886fb4813e28fce9cbc3d088337c84edd9857b18514c83f1bb1cf0f51518aaecef09f30e921f4d758d7

Download Submit
memory/1972-0-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1972-9-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2968-19-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/3660-13-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/3660-53-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads