cc8feb9bf0ce240613f1ed1b4218379af7aa0bf7a6274b395a508adf03a6f33a

General

Target

5f2e6bff06e97733212afdbcadcf2c50_NeikiAnalytics.exe
Size

23KB
MD5

5f2e6bff06e97733212afdbcadcf2c50
SHA1

95bf2080dd2a95e2f3e7a9914236950dd3e22ce0
SHA256

cc8feb9bf0ce240613f1ed1b4218379af7aa0bf7a6274b395a508adf03a6f33a
SHA512

965ac60b11af3592cee6ebc8f6a33b10708292360ce8b411c16b247ee88034623d6efac8586b8592cbd90e702b89c81058c7734b02c1df88eafb6c7e70b24ac0
SSDEEP

384:jIz490Do+c44+USy7V/Rk6ksKbZ2+ledvs8nPpF8ToRHeRHnVd1:jIUyc47U1TkSKbZ2+lGk2BF8ToR+RHVL

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
2952	rmass.exe
4484	rmass.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000a000000022fbf-2.dat	upx
behavioral2/memory/2952-5-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral2/memory/2952-48-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral2/memory/4484-49-0x0000000000400000-0x0000000000411000-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\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
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	rmass.exe
File opened for modification	C:\Windows\SysWOW64\rmass.exe	5f2e6bff06e97733212afdbcadcf2c50_NeikiAnalytics.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 created	C:\Windows\SysWOW64\RECOVER32.DLL	rmass.exe
File opened for modification	C:\Windows\SysWOW64\aset32.exe	rmass.exe
File created	C:\Windows\SysWOW64\rmass.exe	5f2e6bff06e97733212afdbcadcf2c50_NeikiAnalytics.exe
File opened for modification	C:\Windows\SysWOW64\ntdbg.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\RECOVER32.DLL	rmass.exe
File opened for modification	C:\Windows\SysWOW64\winrnt.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\idbg32.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
2952	rmass.exe
2952	rmass.exe
2952	rmass.exe
2952	rmass.exe
2952	rmass.exe
2952	rmass.exe
4484	rmass.exe
4484	rmass.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2952	rmass.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4664 wrote to memory of 2952	4664	5f2e6bff06e97733212afdbcadcf2c50_NeikiAnalytics.exe	83
PID 4664 wrote to memory of 2952	4664	5f2e6bff06e97733212afdbcadcf2c50_NeikiAnalytics.exe	83
PID 4664 wrote to memory of 2952	4664	5f2e6bff06e97733212afdbcadcf2c50_NeikiAnalytics.exe	83
PID 2952 wrote to memory of 4484	2952	rmass.exe	84
PID 2952 wrote to memory of 4484	2952	rmass.exe	84
PID 2952 wrote to memory of 4484	2952	rmass.exe	84
PID 2952 wrote to memory of 600	2952	rmass.exe	5
PID 2952 wrote to memory of 3484	2952	rmass.exe	56

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:600

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3484
- C:\Users\Admin\AppData\Local\Temp\5f2e6bff06e97733212afdbcadcf2c50_NeikiAnalytics.exe
  "C:\Users\Admin\AppData\Local\Temp\5f2e6bff06e97733212afdbcadcf2c50_NeikiAnalytics.exe"
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:4664
- - 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:2952
  - - C:\Windows\SysWOW64\rmass.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:4484

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
23KB

MD5
2e58f4827e324ede24f3fc6f9e7605bd

SHA1
761dc38ad09a95830c589385ab0f7cfe65c9817d

SHA256
72c3d8c6c9bfbb1047100bfc9c104d9af8877bc65215767f3754ed36f5c473ae

SHA512
204fa7ff38c6650d12e1b5dc1aac1748144cb25d7c1fa745dfd99414f512f69d430bcf41aa1423a8b68a8f91ab81f0e82aa8d326b98cc22be6435fa671d8bc42

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

Filesize
24KB

MD5
c1cbce74d9923b83771a8b19b3cebf86

SHA1
9d0cd67b6bb1b24790b314c7cd630782aee22544

SHA256
bdff7e1e4165c637807328acf75e05557e0244dd896f54173176bd0427277cab

SHA512
8c5106595c19c6b226c748c07a54432fb473122246c04880d287fb4bcf2a3ab93c70cc0afba3217d302b43627f08dfdaf8a692f1c0d10b3d9880cbf01716224a

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

Filesize
21KB

MD5
d61e27f97b5ce7839efc4bfe07db4d96

SHA1
82852844b888214652a4900a6ec395f166eaa8f2

SHA256
53db6a725061b321682746857f62dcf31a8bc1d4de6f3d10707225ea0d84b131

SHA512
5538b2b6fc046ccf6ba016630c65e613dbce618eeab3e4a2ffc9ffac2fcf8ad10dcc5d5716c6adb1b332f165746685cafb605f1edb02c6d828710899a805254b

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

Filesize
1KB

MD5
6f47b62de25d1745e296a06b3f98ed19

SHA1
a688bb35a4c8a5cc198985d624a1b5a6ac5b9f6f

SHA256
15c7218eb9cef5fa0573db657b15ce3a5f0e0609f1166df8098ca7152df505b4

SHA512
dea26fff8060f44bf20fe4fff2ecbacf428727f10c0f5886fb4813e28fce9cbc3d088337c84edd9857b18514c83f1bb1cf0f51518aaecef09f30e921f4d758d7

Download Submit
memory/2952-5-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2952-48-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/4484-49-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/4664-3-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads