70831ec88124232a9a8caa80b19b8409d746471941438dd7ab1d222bdfb8cbc9

General

Target

7cd7ce0ee6888be35b36f05fd8176b30_NeikiAnalytics.exe
Size

21KB
MD5

7cd7ce0ee6888be35b36f05fd8176b30
SHA1

6518ff4e0883ccd7531f460e931a03cd7591ea9e
SHA256

70831ec88124232a9a8caa80b19b8409d746471941438dd7ab1d222bdfb8cbc9
SHA512

273df6ff89d39a16f371985d9c2a1fdfeaf36870b48905da237e2e4108ef30c326f5245ebe9b23b52f6d3b03dc7c3f53ae98ef395338c10429264002ad7046ff
SSDEEP

384:UBWoC5GDr6wc/w3HgM6vDUTAXBGCVf4WVlFvX8Mb7a6k:rRkiLw3HsDSARGG/MMb7rk

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\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

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Windows\\system32\\ntdbg.exe"	rmass.exe
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

Executes dropped EXE 2 IoCs

pid	Process
2176	rmass.exe
2780	rmass.exe

Loads dropped DLL 3 IoCs

pid	Process
2188	7cd7ce0ee6888be35b36f05fd8176b30_NeikiAnalytics.exe
2188	7cd7ce0ee6888be35b36f05fd8176b30_NeikiAnalytics.exe
2176	rmass.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2188-0-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/files/0x000a0000000122ec-4.dat	upx
behavioral1/memory/2188-12-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2176-13-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2176-24-0x00000000003B0000-0x00000000003C1000-memory.dmp	upx
behavioral1/memory/2780-26-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2176-60-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral1/memory/2780-61-0x0000000000400000-0x0000000000411000-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
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
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

Drops file in System32 directory 12 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rmass.exe	7cd7ce0ee6888be35b36f05fd8176b30_NeikiAnalytics.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\rmass.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\rmass.exe	7cd7ce0ee6888be35b36f05fd8176b30_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 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

Drops file in Program Files directory 3 IoCs

description	ioc	Process
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
File opened for modification	C:\Program Files (x86)\Common Files\System\winrnt.exe	rmass.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2176	rmass.exe
2176	rmass.exe
2176	rmass.exe
2780	rmass.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2188	7cd7ce0ee6888be35b36f05fd8176b30_NeikiAnalytics.exe
Token: SeDebugPrivilege	2176	rmass.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2188 wrote to memory of 2176	2188	7cd7ce0ee6888be35b36f05fd8176b30_NeikiAnalytics.exe	28
PID 2188 wrote to memory of 2176	2188	7cd7ce0ee6888be35b36f05fd8176b30_NeikiAnalytics.exe	28
PID 2188 wrote to memory of 2176	2188	7cd7ce0ee6888be35b36f05fd8176b30_NeikiAnalytics.exe	28
PID 2188 wrote to memory of 2176	2188	7cd7ce0ee6888be35b36f05fd8176b30_NeikiAnalytics.exe	28
PID 2176 wrote to memory of 428	2176	rmass.exe	5
PID 2176 wrote to memory of 1248	2176	rmass.exe	21
PID 2176 wrote to memory of 2780	2176	rmass.exe	29
PID 2176 wrote to memory of 2780	2176	rmass.exe	29
PID 2176 wrote to memory of 2780	2176	rmass.exe	29
PID 2176 wrote to memory of 2780	2176	rmass.exe	29

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:428

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1248
- C:\Users\Admin\AppData\Local\Temp\7cd7ce0ee6888be35b36f05fd8176b30_NeikiAnalytics.exe
  "C:\Users\Admin\AppData\Local\Temp\7cd7ce0ee6888be35b36f05fd8176b30_NeikiAnalytics.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2188
- - 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:2176
  - - C:\Windows\SysWOW64\rmass.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:2780

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
e3c1184a7d26cf4f55f2ab88f83c7460

SHA1
55e854d101d745d3a636ff38a8017ab42fcfbe50

SHA256
b2fe6f163041b372f39cb04e4fa6f778ecba1eed60c8a5d5251d014cde4c1c22

SHA512
ef77a8a740fefbf9d056c1e56d62cad6595345d977e55ce4add4658db7867e73a5a0d9d4b7f2050c0036de954f507919bb4ac80e0c3596fc3a99aa354d5db9cf

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

Filesize
25KB

MD5
9e2279dd21568903ea5a999f8e747440

SHA1
d280f347fded2842707af0f521eb3fc6cd34249f

SHA256
75deb9c13f8a97e4d6eb80126967a4ce8bd9fc777fd6e755e69667a23021ced5

SHA512
722bb761ac713205863373df0464acf3d28b6bd0c8133df37ab48956dfcc85ffef6418d920ba44a7df8360900d17ee65ec87a276d27ccc46892dcf97d6c1f396

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
7cd7ce0ee6888be35b36f05fd8176b30

SHA1
6518ff4e0883ccd7531f460e931a03cd7591ea9e

SHA256
70831ec88124232a9a8caa80b19b8409d746471941438dd7ab1d222bdfb8cbc9

SHA512
273df6ff89d39a16f371985d9c2a1fdfeaf36870b48905da237e2e4108ef30c326f5245ebe9b23b52f6d3b03dc7c3f53ae98ef395338c10429264002ad7046ff

Download Submit
memory/2176-13-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2176-24-0x00000000003B0000-0x00000000003C1000-memory.dmp

Filesize
68KB

Download
memory/2176-60-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2176-91-0x00000000003B0000-0x00000000003C1000-memory.dmp

Filesize
68KB

Download
memory/2188-0-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2188-12-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2780-26-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2780-61-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads