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\{4F424A49-5955-4945-4F42-4A4959554945}	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4F424A49-5955-4945-4F42-4A4959554945}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	rmass.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4F424A49-5955-4945-4F42-4A4959554945}\IsInstalled = "1"	rmass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4F424A49-5955-4945-4F42-4A4959554945}\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
1420	rmass.exe
4136	rmass.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/468-0-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral2/files/0x000b00000002340e-6.dat	upx
behavioral2/memory/1420-9-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral2/memory/468-7-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral2/memory/4136-17-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral2/memory/1420-52-0x0000000000400000-0x0000000000411000-memory.dmp	upx
behavioral2/memory/4136-53-0x0000000000400000-0x0000000000411000-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}\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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a"	rmass.exe

Drops file in System32 directory 12 IoCs

description	ioc	Process
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\winrnt.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\aset32.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\rmass.exe	rmass.exe
File opened for modification	C:\Windows\SysWOW64\rmass.exe	3fbef1ae463b35ccf49595c96a371300_NeikiAnalytics.exe
File created	C:\Windows\SysWOW64\rmass.exe	3fbef1ae463b35ccf49595c96a371300_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\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
1420	rmass.exe
1420	rmass.exe
1420	rmass.exe
1420	rmass.exe
1420	rmass.exe
1420	rmass.exe
4136	rmass.exe
4136	rmass.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	468	3fbef1ae463b35ccf49595c96a371300_NeikiAnalytics.exe
Token: SeDebugPrivilege	1420	rmass.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 468 wrote to memory of 1420	468	3fbef1ae463b35ccf49595c96a371300_NeikiAnalytics.exe	82
PID 468 wrote to memory of 1420	468	3fbef1ae463b35ccf49595c96a371300_NeikiAnalytics.exe	82
PID 468 wrote to memory of 1420	468	3fbef1ae463b35ccf49595c96a371300_NeikiAnalytics.exe	82
PID 1420 wrote to memory of 592	1420	rmass.exe	5
PID 1420 wrote to memory of 3528	1420	rmass.exe	56
PID 1420 wrote to memory of 4136	1420	rmass.exe	83
PID 1420 wrote to memory of 4136	1420	rmass.exe	83
PID 1420 wrote to memory of 4136	1420	rmass.exe	83

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:592

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3528
- C:\Users\Admin\AppData\Local\Temp\3fbef1ae463b35ccf49595c96a371300_NeikiAnalytics.exe
  "C:\Users\Admin\AppData\Local\Temp\3fbef1ae463b35ccf49595c96a371300_NeikiAnalytics.exe"
  2⤵
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:468
- - 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
    - 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:1420
  - - C:\Windows\SysWOW64\rmass.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:4136

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
23KB

MD5
ee557f5e1c6b2aef978012411e693b8f

SHA1
16cf2ad77b46e194936f4264be35db8473a211f4

SHA256
a81f049b3e4fe7c3587eb80bfa1538c27a55e6eb9c285cc25af3c56da5e42bb0

SHA512
46229295133aa0ccaa060ddd2de38a8791e3fa5c964b45a21400cfcdcdad3b509e1242fed7250115eddab584a4e6f37e414bf63ac4804b807c5d7e5ccc6dc592

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

Filesize
24KB

MD5
25c1a61d1db69c07a87b4e4c1658209b

SHA1
d593bc846c00be8c463be145580ac0d7a48cd008

SHA256
2ddbfe70b91354db86e5f96a578a7da09d1eaa8789021b2405103b96f0f1e418

SHA512
455ec8b44085158785f19fe90774e8ab1d491db548cfe78d87d6a8c1fd4a45481b4b841b9c975f1ee9e1917bfc21b87cb7b30cf540400a71b8e70daea0547e8f

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

Filesize
21KB

MD5
3fbef1ae463b35ccf49595c96a371300

SHA1
26988ffacfe8ea90583913a12afa3e3a9e23c6b0

SHA256
d1c1a184de12f4100498bd77fd88d14aea7658be0d8ea82f83ed160b29fa38d9

SHA512
cb8a3097d1af8e97f8962d2ab1c451d5076168c4754848a999df5cd37a6a6f09c1e3274e67886f89c8ff07d221282b7897f4594f0857473246ee61192f32f9e9

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

Filesize
1KB

MD5
6f47b62de25d1745e296a06b3f98ed19

SHA1
a688bb35a4c8a5cc198985d624a1b5a6ac5b9f6f

SHA256
15c7218eb9cef5fa0573db657b15ce3a5f0e0609f1166df8098ca7152df505b4

SHA512
dea26fff8060f44bf20fe4fff2ecbacf428727f10c0f5886fb4813e28fce9cbc3d088337c84edd9857b18514c83f1bb1cf0f51518aaecef09f30e921f4d758d7

Download Submit
memory/468-0-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/468-7-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1420-9-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1420-52-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/4136-17-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/4136-53-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads