8a97c0167aa6144e0f66aaa6f17a3ff1df9b5ef4d90ba749c65aad87b670c7ab

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
04/06/2024, 01:38

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General

Target
1db53fb00e27e3b5cde19816d55800d0_NeikiAnalytics.exe
Size 66KB
Sample240604-b2t97sgg91
SHA256 8a97c0167aa6144e0f66aaa6f17a3ff1df9b5ef4d90ba749c65aad87b670c7ab
MD5 1db53fb00e27e3b5cde19816d55800d0
SHA1 fe2c7b8ad6bead7dff531e8f03b6065f9ad25728
SHA512 79e88cc0d0c1b85eaa63822d06a1da0efc74e75200337e78c16db200ac269164a7f87da3d83010f43ebb669d7a06cdb7b7cf555242afb7e24acacb68d0110ac5
SSDEEP 1536:EHfetdklPp+07gDSrB8Xru2zGeJxgawTzpXzrDJrXiN:IeklMMYJhqezw/pXzH9iN
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

evasion persistence trojan

Malware Config

Signatures

Detects BazaLoader malware 1 IoCs

BazaLoader is a trojan that transmits logs to the Command and Control (C2) server, encoding them in BASE64 format through GET requests.

trojan

resource	yara_rule
behavioral2/memory/3132-37-0x0000000075080000-0x00000000751DD000-memory.dmp	BazaLoader

Modifies WinLogon for persistence 2 TTPs 2 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\shell = "C:\\Windows\\explorer.exe, c:\\windows\\system\\explorer.exe"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\system\\explorer.exe"	svchost.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe

Modifies Installed Components in the registry 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR"	svchost.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}	svchost.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR"	svchost.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432NODE\MICROSOFT\ACTIVE SETUP\INSTALLED COMPONENTS\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999}	svchost.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR"	explorer.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999}	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
4340	explorer.exe
4148	spoolsv.exe
3132	svchost.exe
4764	spoolsv.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\system\\explorer.exe RO"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\system\\svchost.exe RO"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\system\\explorer.exe RO"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\system\\svchost.exe RO"	svchost.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\system\svchost.exe	svchost.exe
File opened for modification	C:\Windows\system\udsys.exe	explorer.exe
File opened for modification	\??\c:\windows\system\explorer.exe	1db53fb00e27e3b5cde19816d55800d0_NeikiAnalytics.exe
File opened for modification	\??\c:\windows\system\spoolsv.exe	explorer.exe
File opened for modification	\??\c:\windows\system\svchost.exe	spoolsv.exe
File opened for modification	\??\c:\windows\system\explorer.exe	explorer.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2900	1db53fb00e27e3b5cde19816d55800d0_NeikiAnalytics.exe
2900	1db53fb00e27e3b5cde19816d55800d0_NeikiAnalytics.exe
4340	explorer.exe
4340	explorer.exe
4340	explorer.exe
4340	explorer.exe
4340	explorer.exe
4340	explorer.exe
3132	svchost.exe
3132	svchost.exe
3132	svchost.exe
3132	svchost.exe
4340	explorer.exe
4340	explorer.exe
3132	svchost.exe
3132	svchost.exe
4340	explorer.exe
4340	explorer.exe
3132	svchost.exe
3132	svchost.exe
4340	explorer.exe
4340	explorer.exe
3132	svchost.exe
3132	svchost.exe
4340	explorer.exe
4340	explorer.exe
3132	svchost.exe
3132	svchost.exe
4340	explorer.exe
4340	explorer.exe
3132	svchost.exe
3132	svchost.exe
4340	explorer.exe
4340	explorer.exe
3132	svchost.exe
3132	svchost.exe
4340	explorer.exe
4340	explorer.exe
3132	svchost.exe
3132	svchost.exe
4340	explorer.exe
4340	explorer.exe
3132	svchost.exe
3132	svchost.exe
4340	explorer.exe
4340	explorer.exe
3132	svchost.exe
3132	svchost.exe
4340	explorer.exe
4340	explorer.exe
3132	svchost.exe
3132	svchost.exe
4340	explorer.exe
4340	explorer.exe
3132	svchost.exe
3132	svchost.exe
4340	explorer.exe
4340	explorer.exe
3132	svchost.exe
3132	svchost.exe
4340	explorer.exe
4340	explorer.exe
3132	svchost.exe
3132	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
4340	explorer.exe
3132	svchost.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2900	1db53fb00e27e3b5cde19816d55800d0_NeikiAnalytics.exe
2900	1db53fb00e27e3b5cde19816d55800d0_NeikiAnalytics.exe
4340	explorer.exe
4340	explorer.exe
4148	spoolsv.exe
4148	spoolsv.exe
3132	svchost.exe
3132	svchost.exe
4764	spoolsv.exe
4764	spoolsv.exe
4340	explorer.exe
4340	explorer.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2900 wrote to memory of 4340	2900	1db53fb00e27e3b5cde19816d55800d0_NeikiAnalytics.exe	83
PID 2900 wrote to memory of 4340	2900	1db53fb00e27e3b5cde19816d55800d0_NeikiAnalytics.exe	83
PID 2900 wrote to memory of 4340	2900	1db53fb00e27e3b5cde19816d55800d0_NeikiAnalytics.exe	83
PID 4340 wrote to memory of 4148	4340	explorer.exe	84
PID 4340 wrote to memory of 4148	4340	explorer.exe	84
PID 4340 wrote to memory of 4148	4340	explorer.exe	84
PID 4148 wrote to memory of 3132	4148	spoolsv.exe	86
PID 4148 wrote to memory of 3132	4148	spoolsv.exe	86
PID 4148 wrote to memory of 3132	4148	spoolsv.exe	86
PID 3132 wrote to memory of 4764	3132	svchost.exe	88
PID 3132 wrote to memory of 4764	3132	svchost.exe	88
PID 3132 wrote to memory of 4764	3132	svchost.exe	88
PID 3132 wrote to memory of 1708	3132	svchost.exe	89
PID 3132 wrote to memory of 1708	3132	svchost.exe	89
PID 3132 wrote to memory of 1708	3132	svchost.exe	89
PID 3132 wrote to memory of 2944	3132	svchost.exe	106
PID 3132 wrote to memory of 2944	3132	svchost.exe	106
PID 3132 wrote to memory of 2944	3132	svchost.exe	106
PID 3132 wrote to memory of 1636	3132	svchost.exe	116
PID 3132 wrote to memory of 1636	3132	svchost.exe	116
PID 3132 wrote to memory of 1636	3132	svchost.exe	116

C:\Users\Admin\AppData\Local\Temp\1db53fb00e27e3b5cde19816d55800d0_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\1db53fb00e27e3b5cde19816d55800d0_NeikiAnalytics.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2900
- \??\c:\windows\system\explorer.exe
  c:\windows\system\explorer.exe
  2⤵
  - Modifies WinLogon for persistence
  - Modifies visiblity of hidden/system files in Explorer
  - Modifies Installed Components in the registry
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4340
- - \??\c:\windows\system\spoolsv.exe
    c:\windows\system\spoolsv.exe SE
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4148
  - - \??\c:\windows\system\svchost.exe
      c:\windows\system\svchost.exe
      4⤵
      Modifies WinLogon for persistence
      Modifies visiblity of hidden/system files in Explorer
      Modifies Installed Components in the registry
      Executes dropped EXE
      Adds Run key to start application
      Drops file in Windows directory
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:3132
    - - \??\c:\windows\system\spoolsv.exe
        
        c:\windows\system\spoolsv.exe PR
        5⤵
        Executes dropped EXE
        Suspicious use of SetWindowsHookEx
        
        PID:4764
    - - C:\Windows\SysWOW64\at.exe
        
        at 01:41 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        5⤵
        
        PID:1708
    - - C:\Windows\SysWOW64\at.exe
        
        at 01:42 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        5⤵
        
        PID:2944
    - - C:\Windows\SysWOW64\at.exe
        
        at 01:43 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
        5⤵
        
        PID:1636

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

mrsys.exe

Path C:\Users\Admin\AppData\Roaming\mrsys.exe
Size 66KB
SHA256 cf14580843d7d04f1831c7dbddeea60fd077b97ad63113c06b6b000899b12c05
MD5 a4dc8632f57ce52bf85ac09545f714f8
SHA1 0e4a3a889cf767a0b472a546db059e7f0f20a40e
SHA512 11d176551362bcb9f29ae3a19bc386fb94b1a8b59bab9591e531a1d8868cdbcd42411506e63dfcbfac081c38e1ac529a0b4cf5407847105af43b9993b3e3fef4
SSDEEP 1536:EHfetdklPp+07gDSrB8Xru2zGeJxgawTzpXzrDJrXiR:IeklMMYJhqezw/pXzH9iR
MD5 SHA1 SHA512 SSDEEP

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explorer.exe

Path C:\Windows\System\explorer.exe
Size 66KB
SHA256 6cd6b3dead41167cb64af16963ae609f7eef8e1ce7fb48976b3a092499863dc0
MD5 6e01434c2029151b66ff510533e51219
SHA1 def7f589f389f163d0480f3d70fcb32a6a371ca6
SHA512 61a26556abf553ec74a6b6ac414a57d71e5019a8386743e71ab9b248003bab39ce23aacc258c4772fa4f98abd438867d50b16d6331b26b71e54a9e6e56ff2b00
SSDEEP 1536:EHfetdklPp+07gDSrB8Xru2zGeJxgawTzpXzrDJrXi2:IeklMMYJhqezw/pXzH9i2
MD5 SHA1 SHA512 SSDEEP

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svchost.exe

Path C:\Windows\System\svchost.exe
Size 66KB
SHA256 deb3d6c4e9776374b48da0fb2f0d90d92f67122e2f6b9d353f83dcd8c3710b7e
MD5 d1e296b0949c0b3f799d69ac02c27753
SHA1 bc48f774448d4fa5281d2fa98d161a71ee8449bd
SHA512 84817ab6a9f3a54ba04ad683b6791a72d830f8a4a444e86679ad2007d69be00f32b1a95f5e561559c382720ba39ecf8e0995852cc5d4e41848333acce509433b
SSDEEP 1536:EHfetdklPp+07gDSrB8Xru2zGeJxgawTzpXzrDJrXik:IeklMMYJhqezw/pXzH9ik
MD5 SHA1 SHA512 SSDEEP

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spoolsv.exe

Path \??\c:\windows\system\spoolsv.exe
Size 66KB
SHA256 78d50bcd8ed4713c3640bd164bbefaf72ee6bea9b6358961922507f6ee006fa6
MD5 c461276f5b62d5772a133184a65dc76e
SHA1 ebdb787c03bd74291925c53a97844f3949538eff
SHA512 ae55c33cc50e0f3c69f81f23780c16bf7ac03cdb10eba97da82fe5b42a09a36b88a933ac81e6f77e20b9e3680a95ec58beb791e5abcf1e1780974e8c4acdbab2
SSDEEP 1536:EHfetdklPp+07gDSrB8Xru2zGeJxgawTzpXzrDJrXiF:IeklMMYJhqezw/pXzH9iF
MD5 SHA1 SHA512 SSDEEP

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memory/2900-4-0x0000000000401000-0x000000000042E000-memory.dmp

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memory/2900-2-0x0000000075080000-0x00000000751DD000-memory.dmp

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memory/2900-3-0x0000000000400000-0x0000000000431000-memory.dmp

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memory/2900-0-0x0000000000400000-0x0000000000431000-memory.dmp

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memory/2900-57-0x0000000000401000-0x000000000042E000-memory.dmp

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memory/2900-56-0x0000000000400000-0x0000000000431000-memory.dmp

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memory/2900-1-0x00000000001C0000-0x00000000001C4000-memory.dmp

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memory/3132-37-0x0000000075080000-0x00000000751DD000-memory.dmp

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memory/3132-61-0x0000000000400000-0x0000000000431000-memory.dmp

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memory/3132-35-0x0000000000400000-0x0000000000431000-memory.dmp

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memory/4148-52-0x0000000000400000-0x0000000000431000-memory.dmp

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memory/4148-26-0x0000000075080000-0x00000000751DD000-memory.dmp

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memory/4340-59-0x0000000000400000-0x0000000000431000-memory.dmp

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memory/4340-13-0x0000000000400000-0x0000000000431000-memory.dmp

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memory/4340-14-0x0000000000400000-0x0000000000431000-memory.dmp

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memory/4340-15-0x0000000075080000-0x00000000751DD000-memory.dmp

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memory/4340-70-0x0000000000400000-0x0000000000431000-memory.dmp

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memory/4340-18-0x0000000000400000-0x0000000000431000-memory.dmp

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memory/4764-54-0x0000000000400000-0x0000000000431000-memory.dmp

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memory/4764-44-0x0000000075080000-0x00000000751DD000-memory.dmp

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memory/4764-43-0x0000000000400000-0x0000000000431000-memory.dmp

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