d1c1a184de12f4100498bd77fd88d14aea7658be0d8ea82f83ed160b29fa38d9

General

Target

3fbef1ae463b35ccf49595c96a371300_NeikiAnalytics.exe
Size

21KB
MD5

3fbef1ae463b35ccf49595c96a371300
SHA1

26988ffacfe8ea90583913a12afa3e3a9e23c6b0
SHA256

d1c1a184de12f4100498bd77fd88d14aea7658be0d8ea82f83ed160b29fa38d9
SHA512

cb8a3097d1af8e97f8962d2ab1c451d5076168c4754848a999df5cd37a6a6f09c1e3274e67886f89c8ff07d221282b7897f4594f0857473246ee61192f32f9e9
SSDEEP

384:UBWoC5GDr6wc/w3HgM6vDUTAXBGCVf4WVlFvX8Mb7a6p:rRkiLw3HsDSARGG/MMb7rp

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
2120	rmass.exe
2152	rmass.exe

Loads dropped DLL 3 IoCs

pid	Process
3016	3fbef1ae463b35ccf49595c96a371300_NeikiAnalytics.exe
3016	3fbef1ae463b35ccf49595c96a371300_NeikiAnalytics.exe
2120	rmass.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3016-0-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/3016-5-0x00000000003A0000-0x00000000003B1000-memory.dmp	upx
behavioral1/files/0x000d00000001226b-4.dat	upx
behavioral1/memory/3016-14-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2120-20-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2120-61-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2152-62-0x0000000000400000-0x0000000000411000-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\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
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "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	3fbef1ae463b35ccf49595c96a371300_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 created	C:\Windows\SysWOW64\ahuy.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\rmass.exe	rmass.exe
File created	C:\Windows\SysWOW64\rmass.exe	3fbef1ae463b35ccf49595c96a371300_NeikiAnalytics.exe
File created	C:\Windows\SysWOW64\ntdbg.exe	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\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 4 IoCs

pid	Process
2120	rmass.exe
2120	rmass.exe
2120	rmass.exe
2152	rmass.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3016	3fbef1ae463b35ccf49595c96a371300_NeikiAnalytics.exe
Token: SeDebugPrivilege	2120	rmass.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 2120	3016	3fbef1ae463b35ccf49595c96a371300_NeikiAnalytics.exe	28
PID 3016 wrote to memory of 2120	3016	3fbef1ae463b35ccf49595c96a371300_NeikiAnalytics.exe	28
PID 3016 wrote to memory of 2120	3016	3fbef1ae463b35ccf49595c96a371300_NeikiAnalytics.exe	28
PID 3016 wrote to memory of 2120	3016	3fbef1ae463b35ccf49595c96a371300_NeikiAnalytics.exe	28
PID 2120 wrote to memory of 432	2120	rmass.exe	5
PID 2120 wrote to memory of 1200	2120	rmass.exe	21
PID 2120 wrote to memory of 2152	2120	rmass.exe	29
PID 2120 wrote to memory of 2152	2120	rmass.exe	29
PID 2120 wrote to memory of 2152	2120	rmass.exe	29
PID 2120 wrote to memory of 2152	2120	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\3fbef1ae463b35ccf49595c96a371300_NeikiAnalytics.exe
  "C:\Users\Admin\AppData\Local\Temp\3fbef1ae463b35ccf49595c96a371300_NeikiAnalytics.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3016
- - 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:2120
  - - C:\Windows\SysWOW64\rmass.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:2152

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
4b12508cc981a9077391da41f7da4a81

SHA1
24e7a577bcfd7905311a055bce3f6d7bd25db82e

SHA256
d913c94e66e4aabdbdc01d89a044bdabbd2bf7a575a5308a80206ef96bfdb9db

SHA512
5f7afd3014bfae1414c24462398cf8cbe0c0a93d7ee52ba9407fda9a35ee81d7a7e7d6d87936556ca924031904d16b6f52108b59ac03753eb7902b5e79e272eb

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

Filesize
24KB

MD5
23990caa52d2e2160567c4d18f5d9472

SHA1
0aa322063d106d9f53773fcbccde3c2ad7cc596e

SHA256
2101c5aacc41861e8a634d2e70074f1e23d8a9ba9273a68f46afe924ee5a8075

SHA512
25297573830f79ec1209541336dfee45f9d1d5482bbed1404d329077d129b80a78f9ec3017ffa9d4738f3a768c51700aefceda31567801302107eb49943a5291

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
21KB

MD5
3fbef1ae463b35ccf49595c96a371300

SHA1
26988ffacfe8ea90583913a12afa3e3a9e23c6b0

SHA256
d1c1a184de12f4100498bd77fd88d14aea7658be0d8ea82f83ed160b29fa38d9

SHA512
cb8a3097d1af8e97f8962d2ab1c451d5076168c4754848a999df5cd37a6a6f09c1e3274e67886f89c8ff07d221282b7897f4594f0857473246ee61192f32f9e9

Download Submit
memory/2120-20-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2120-26-0x0000000000320000-0x0000000000331000-memory.dmp

Filesize
68KB

Download
memory/2120-61-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2120-92-0x0000000000320000-0x0000000000331000-memory.dmp

Filesize
68KB

Download
memory/2152-62-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/3016-0-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/3016-14-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/3016-11-0x00000000003A0000-0x00000000003B1000-memory.dmp

Filesize
68KB

Download
memory/3016-5-0x00000000003A0000-0x00000000003B1000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads