31484b188f29309c6ac3ebdd5133721c1a51c65f7511f7f8d05a4ffcb2b7b0f7

General

Target

d558b479606b9f077db2e691bd467310_NeikiAnalytics.exe
Size

65KB
MD5

d558b479606b9f077db2e691bd467310
SHA1

bf1dcbf9fea95ed1e3be586ef1cbfad0e7a317cf
SHA256

31484b188f29309c6ac3ebdd5133721c1a51c65f7511f7f8d05a4ffcb2b7b0f7
SHA512

3d058a6054c2685ed44b20dafaaf7a5e948735bd129b7b7da2ecbf877c9f323e6a8cc4db537e56c591024cc7356ed16e3621acc54e1c2733ea0d12201aa54e9b
SSDEEP

768:jIUcOfjivF0qaipNRY8B8xSX5v8JgXYM9rnLE6z+A4xD8wyiHM+KCmuLN1jstlCe:jo2ip7Y8ASN8JMYmMQqMuXQnuMv

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\{55485251-4b4a-4350-5548-52514B4A4350}	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{55485251-4b4a-4350-5548-52514B4A4350}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	rmass.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{55485251-4b4a-4350-5548-52514B4A4350}\IsInstalled = "1"	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{55485251-4b4a-4350-5548-52514B4A4350}\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
2192	rmass.exe
2664	rmass.exe

Loads dropped DLL 3 IoCs

pid	Process
3048	d558b479606b9f077db2e691bd467310_NeikiAnalytics.exe
3048	d558b479606b9f077db2e691bd467310_NeikiAnalytics.exe
2192	rmass.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000d00000001226b-1.dat	upx
behavioral1/memory/3048-2-0x0000000000020000-0x0000000000032000-memory.dmp	upx
behavioral1/memory/2192-10-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/memory/2192-76-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/memory/2664-92-0x0000000000400000-0x0000000000412000-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\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
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
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

Drops file in System32 directory 12 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\RECOVER32.DLL	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 opened for modification	C:\Windows\SysWOW64\rmass.exe	d558b479606b9f077db2e691bd467310_NeikiAnalytics.exe
File opened for modification	C:\Windows\SysWOW64\ahuy.exe	rmass.exe
File created	C:\Windows\SysWOW64\ahuy.exe	rmass.exe
File created	C:\Windows\SysWOW64\RECOVER32.DLL	rmass.exe
File opened for modification	C:\Windows\SysWOW64\winrnt.exe	rmass.exe
File created	C:\Windows\SysWOW64\rmass.exe	d558b479606b9f077db2e691bd467310_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
2192	rmass.exe
2192	rmass.exe
2192	rmass.exe
2664	rmass.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2192	rmass.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 2192	3048	d558b479606b9f077db2e691bd467310_NeikiAnalytics.exe	28
PID 3048 wrote to memory of 2192	3048	d558b479606b9f077db2e691bd467310_NeikiAnalytics.exe	28
PID 3048 wrote to memory of 2192	3048	d558b479606b9f077db2e691bd467310_NeikiAnalytics.exe	28
PID 3048 wrote to memory of 2192	3048	d558b479606b9f077db2e691bd467310_NeikiAnalytics.exe	28
PID 2192 wrote to memory of 432	2192	rmass.exe	5
PID 2192 wrote to memory of 1200	2192	rmass.exe	21
PID 2192 wrote to memory of 2664	2192	rmass.exe	29
PID 2192 wrote to memory of 2664	2192	rmass.exe	29
PID 2192 wrote to memory of 2664	2192	rmass.exe	29
PID 2192 wrote to memory of 2664	2192	rmass.exe	29

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1200
- C:\Users\Admin\AppData\Local\Temp\d558b479606b9f077db2e691bd467310_NeikiAnalytics.exe
  "C:\Users\Admin\AppData\Local\Temp\d558b479606b9f077db2e691bd467310_NeikiAnalytics.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:3048
- - 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:2192
  - - 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

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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
188c992a9cd4fc1121449bf14992a65a

SHA1
8e7e1cd48d16b34e9fa83efe64772e97d51dc207

SHA256
bf4fffa7ec54b56b7b8737172e16fc368b3e05d8a43762e418e43b35dd192565

SHA512
1c427c711d27a7afa0b6b8050ebd93e063e0c0c7a65886db0dcf3b9e22902a5ac380ccbbb1b4ac99fd26cc1efa4fe98b3671003e0c455f2ed7bf06b1332d30b8

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

Filesize
66KB

MD5
7f0bd19ae388c5e0be5fb24411ac0526

SHA1
f86679eb26147a8327206a655bc2eace740ea0d3

SHA256
cf02f6e38223017e3b4decd98539df0d06e372592d1d610891439804ca988045

SHA512
5b28e8edfb800d799e90ce360571a8133d68415dd11d3d53e4194abcf77545fcb64fde963b3f5f065d3e7ad3e988357fb43bedd5edb3dcdb84415c0aece210ea

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
2521b62b5a0a153c7317bd8d2be89135

SHA1
473de7e75fc83adab486178367f048961e1cc5a3

SHA256
34efe39e736697b77b0c177ff6fa917a48d593fa0053740e61f8a895b278091e

SHA512
88d23968172a9bb9c72422c1816f8fe2f3f3220b8c971424fd835f05afbdbc96de39e55142704b0bfd13da023ea789e4aef35e168d91a4e100393dbe6c0d1870

Download Submit
memory/2192-10-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2192-76-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2664-92-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3048-2-0x0000000000020000-0x0000000000032000-memory.dmp

Filesize
72KB

Download
memory/3048-8-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads