d64c0aae1c8c75c253b9a3595ad7c072c1b15a31e22f05cdec0a9b0e8b4e21ab

General

Target

8dbb7f3294f1a2b726582022b7b914a0_NeikiAnalytics.exe
Size

24KB
MD5

8dbb7f3294f1a2b726582022b7b914a0
SHA1

d95aa0ef6f74b46c9dc3b2b3983d7a9d5f8ddac6
SHA256

d64c0aae1c8c75c253b9a3595ad7c072c1b15a31e22f05cdec0a9b0e8b4e21ab
SHA512

e1f7906d5be156ccc8dbd55a4296a4d4d2805bd6d7f6c8de41b5a3d2a5e00aa1ebdc158ed2f9ef80319510d305e609836ffdc669ab26d6e91cacac03d8d3c1d1
SSDEEP

768:jIUhfMX4ljI8V4DQhq9dV0SxvbV3j6C5moOC/z:jnfhljUdV0SxvbV3jVOCb

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\{52484154-5145-4451-5248-415451454451}	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{52484154-5145-4451-5248-415451454451}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	rmass.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{52484154-5145-4451-5248-415451454451}\IsInstalled = "1"	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{52484154-5145-4451-5248-415451454451}\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
4564	rmass.exe
1552	rmass.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0006000000023281-4.dat	upx
behavioral2/memory/4564-5-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral2/memory/1552-15-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral2/memory/4564-49-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral2/memory/1552-50-0x0000000000400000-0x0000000000411000-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\{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	8dbb7f3294f1a2b726582022b7b914a0_NeikiAnalytics.exe
File opened for modification	C:\Windows\SysWOW64\idbg32.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\winrnt.exe	rmass.exe
File created	C:\Windows\SysWOW64\rmass.exe	8dbb7f3294f1a2b726582022b7b914a0_NeikiAnalytics.exe
File opened for modification	C:\Windows\SysWOW64\ntdbg.exe	rmass.exe
File created	C:\Windows\SysWOW64\ntdbg.exe	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\RECOVER32.DLL	rmass.exe
File created	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\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\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
4564	rmass.exe
4564	rmass.exe
4564	rmass.exe
4564	rmass.exe
4564	rmass.exe
4564	rmass.exe
1552	rmass.exe
1552	rmass.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4564	rmass.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1640 wrote to memory of 4564	1640	8dbb7f3294f1a2b726582022b7b914a0_NeikiAnalytics.exe	82
PID 1640 wrote to memory of 4564	1640	8dbb7f3294f1a2b726582022b7b914a0_NeikiAnalytics.exe	82
PID 1640 wrote to memory of 4564	1640	8dbb7f3294f1a2b726582022b7b914a0_NeikiAnalytics.exe	82
PID 4564 wrote to memory of 616	4564	rmass.exe	5
PID 4564 wrote to memory of 1552	4564	rmass.exe	83
PID 4564 wrote to memory of 1552	4564	rmass.exe	83
PID 4564 wrote to memory of 1552	4564	rmass.exe	83
PID 4564 wrote to memory of 3432	4564	rmass.exe	56

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:616

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3432
- C:\Users\Admin\AppData\Local\Temp\8dbb7f3294f1a2b726582022b7b914a0_NeikiAnalytics.exe
  "C:\Users\Admin\AppData\Local\Temp\8dbb7f3294f1a2b726582022b7b914a0_NeikiAnalytics.exe"
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1640
- - 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
    - 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:4564
  - - C:\Windows\SysWOW64\rmass.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:1552

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
98571a23d114587abe2fdf13bb572fab

SHA1
44b42c9e9cc7be929a5563f4f9ed9eba4a9b3777

SHA256
da85b5bf0adf584717ccaa1a9cdb92a7e5450ecdbd5d5848731cb44bd539e27a

SHA512
0251ea1736cab3a9f1df249c892923d99503f7a6f92c6e3c9e4f0ed249abc7e34754109df6b8f6b819ce26071c7497ab71d689487d1207fb50aad6ebaa52ff6a

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

Filesize
25KB

MD5
de0490cd3d86df64a5e13d844092174b

SHA1
d69d705dce7c65a7549aea87c5c6ae7acac2efea

SHA256
cc44cdc907074476e4ec0959fc664ba8e8075e7c40cbb551aca5b3d85713056f

SHA512
bb203501d38ffdab2c4a1b46c83e17ab2682e3390c7d73f82bbb1cfe37a49a0c94bddedf08d099d04f1bd726154e1df9c73dbcc0d8ba14333522a5b4d3ac54ba

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

Filesize
22KB

MD5
78338d80ae8abf9591a1dd4787960b42

SHA1
11541b02e3e9691facb2fd9601992860768d7665

SHA256
0bae2b397d8a7956b8a07f1b4d724982b1e175f819830e678e17720483dab25d

SHA512
4d94da6876987cc7aa307e6a159b74400d56a7c1e1a6652d0debaf42666a382340f48425779416eba1438c7110989c6ae33ddd0263a0ee5cc20e5945e09ae4b5

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

Filesize
1KB

MD5
6f47b62de25d1745e296a06b3f98ed19

SHA1
a688bb35a4c8a5cc198985d624a1b5a6ac5b9f6f

SHA256
15c7218eb9cef5fa0573db657b15ce3a5f0e0609f1166df8098ca7152df505b4

SHA512
dea26fff8060f44bf20fe4fff2ecbacf428727f10c0f5886fb4813e28fce9cbc3d088337c84edd9857b18514c83f1bb1cf0f51518aaecef09f30e921f4d758d7

Download Submit
memory/1552-15-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1552-50-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1640-2-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4564-5-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/4564-49-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads