973574852fd0fa08a91b4ffe310f92a42ee1c0532c4a2dbca2809fdcbc77531a

General

Target

5cf1e623727a38f8d0287e1c92a56990_NeikiAnalytics.exe
Size

24KB
MD5

5cf1e623727a38f8d0287e1c92a56990
SHA1

5fcf3ed141a2549cebda54a9c497181a47121d34
SHA256

973574852fd0fa08a91b4ffe310f92a42ee1c0532c4a2dbca2809fdcbc77531a
SHA512

34e329e495de6ae3e88ffdba5c1e8be00f98e7db5d52f2d536ea19dfee009bfbe83f20f665d66386f80e8e22ee33d82621e4c7266865b9a3721e1ab81f2acf24
SSDEEP

768:jIUpNppCPzXBkVF7Cr+RcQAEyouJ6IWsH:jfNaPVkVbCQAEyWIWA

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
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4B584950-5043-4b46-4B58-495050434b46}\IsInstalled = "1"	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4B584950-5043-4b46-4B58-495050434b46}\StubPath = "C:\\Windows\\system32\\ahuy.exe"	rmass.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4B584950-5043-4b46-4B58-495050434b46}	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4B584950-5043-4b46-4B58-495050434b46}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	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
1936	rmass.exe
3012	rmass.exe

Loads dropped DLL 3 IoCs

pid	Process
2240	5cf1e623727a38f8d0287e1c92a56990_NeikiAnalytics.exe
2240	5cf1e623727a38f8d0287e1c92a56990_NeikiAnalytics.exe
1936	rmass.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0009000000015c5d-1.dat	upx
behavioral1/memory/2240-2-0x0000000000020000-0x0000000000031000-memory.dmp	upx
behavioral1/memory/1936-10-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/1936-22-0x0000000000360000-0x0000000000371000-memory.dmp	upx
behavioral1/memory/1936-56-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/3012-57-0x0000000000400000-0x0000000000411000-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
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
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

Drops file in System32 directory 12 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\rmass.exe	5cf1e623727a38f8d0287e1c92a56990_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\RECOVER32.DLL	rmass.exe
File created	C:\Windows\SysWOW64\rmass.exe	5cf1e623727a38f8d0287e1c92a56990_NeikiAnalytics.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\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

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
1936	rmass.exe
1936	rmass.exe
1936	rmass.exe
3012	rmass.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1936	rmass.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 1936	2240	5cf1e623727a38f8d0287e1c92a56990_NeikiAnalytics.exe	28
PID 2240 wrote to memory of 1936	2240	5cf1e623727a38f8d0287e1c92a56990_NeikiAnalytics.exe	28
PID 2240 wrote to memory of 1936	2240	5cf1e623727a38f8d0287e1c92a56990_NeikiAnalytics.exe	28
PID 2240 wrote to memory of 1936	2240	5cf1e623727a38f8d0287e1c92a56990_NeikiAnalytics.exe	28
PID 1936 wrote to memory of 412	1936	rmass.exe	5
PID 1936 wrote to memory of 1192	1936	rmass.exe	21
PID 1936 wrote to memory of 3012	1936	rmass.exe	29
PID 1936 wrote to memory of 3012	1936	rmass.exe	29
PID 1936 wrote to memory of 3012	1936	rmass.exe	29
PID 1936 wrote to memory of 3012	1936	rmass.exe	29

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:412

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1192
- C:\Users\Admin\AppData\Local\Temp\5cf1e623727a38f8d0287e1c92a56990_NeikiAnalytics.exe
  "C:\Users\Admin\AppData\Local\Temp\5cf1e623727a38f8d0287e1c92a56990_NeikiAnalytics.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:2240
- - 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:1936
  - - C:\Windows\SysWOW64\rmass.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:3012

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
e2828adac7da747bfef8550b7ed17822

SHA1
25fdf52eac5d6917856e3021d62dfccd416b2523

SHA256
d22b0f02001b070efd7598e9ece906c0954594a03ee2d8bb443836b1f61c4ff0

SHA512
f54a387d59aac3a843d8430fb8c3aa8136afe1e49b474f131cc3a93c376f029928b0de314f4655f972202152e3a64b084e681d1d4a7945144002012bb150d97a

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

Filesize
25KB

MD5
cc6e56c8c4b3a1ed29e60d22d68c4e04

SHA1
3ab08ddeab5644121accd512daf938d86a37848d

SHA256
e41f75ff6a633c0bb8ef443acd00b5fa5ba61dd2d5e5642c06647a7f7fe27f6c

SHA512
2f735f883b2697c595dcb6035e59885ef71eb0fa038869e6456627475bc8d70513fda0a95e0f794bed28d5ceaa319111ae68dca2007dda762020c8e9a8aa693f

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
22KB

MD5
2724d54486e8e2336999245dc28ae689

SHA1
7d0c5830f917713f49b622a0f4a76d264302a6e8

SHA256
6017c95d42f96041cfec0576276ffe60bff7ffc1a261e82255166acb8b1c8a2a

SHA512
88fb0639eb3b8838bd890edda45fa1df4f54bca24219664e5e4d6801548224c63a331ed8879d921825c2d0e7d20a244fcf473d5ac34f66868759f749909c38a1

Download Submit
memory/1936-10-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1936-22-0x0000000000360000-0x0000000000371000-memory.dmp

Filesize
68KB

Download
memory/1936-56-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1936-96-0x0000000000360000-0x0000000000371000-memory.dmp

Filesize
68KB

Download
memory/2240-2-0x0000000000020000-0x0000000000031000-memory.dmp

Filesize
68KB

Download
memory/2240-8-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/3012-57-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads