luminosity | b0243b6fdfc0c1ad296299bc4424a13cc2c7c9808bf331c07041261d06c9b712

Analysis

max time kernel
147s
max time network
74s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
29-10-2022 13:06

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General

Target

b0243b6fdfc0c1ad296299bc4424a13cc2c7c9808bf331c07041261d06c9b712.exe
Size

269KB
MD5

ff3be7a2ec1d2452f08de1feec2deb2f
SHA1

b842e504a0e84e44ae7b876f3543cf6f2dcae6a9
SHA256

b0243b6fdfc0c1ad296299bc4424a13cc2c7c9808bf331c07041261d06c9b712
SHA512

14469a2bd770cb38f29c8db885ce4ddc10b32cbf64fb62787570cd1347d22d6c0bfb589f3524948ab50c556783970666331ce722a72770c8a7b5225cb7117db8
SSDEEP

6144:YltHeS9enNwHqOu5Dx7tZrRbl+pXOV7yKM+mvSFz9jEhHMIVq1rl:AtHeNn2KOiJZrRJ+0V72+19jqsIVq1B

Score

10^/10

luminosity persistence rat

Malware Config

Signatures

Luminosity
Luminosity is a RAT family that was on sale, while claiming to be a system administration utility.
rat luminosity

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,\"C:\\Windows\\system32\\clientsvr.exe\""	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\517631\\server.exe\""	server.exe

Executes dropped EXE 3 IoCs

pid	Process
1152	zTZLPwuOqJ.exe
1884	tmp31E.tmp.exe
316	server.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\zTZLPwuOqJ.url	b0243b6fdfc0c1ad296299bc4424a13cc2c7c9808bf331c07041261d06c9b712.exe

Loads dropped DLL 5 IoCs

pid	Process
1164	b0243b6fdfc0c1ad296299bc4424a13cc2c7c9808bf331c07041261d06c9b712.exe
1152	zTZLPwuOqJ.exe
1152	zTZLPwuOqJ.exe
1884	tmp31E.tmp.exe
1884	tmp31E.tmp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\microsoft update = "\"C:\\ProgramData\\517631\\server.exe\""	server.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\clientsvr.exe	server.exe
File opened for modification	C:\Windows\SysWOW64\clientsvr.exe	server.exe

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

System Information Discovery
T1082

Runs ping.exe 1 TTPs 2 IoCs

Remote System Discovery

T1018

pid	Process
1880	PING.EXE
828	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
316	server.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1164	b0243b6fdfc0c1ad296299bc4424a13cc2c7c9808bf331c07041261d06c9b712.exe
Token: SeDebugPrivilege	1152	zTZLPwuOqJ.exe
Token: SeDebugPrivilege	316	server.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
316	server.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1164 wrote to memory of 1604	1164	b0243b6fdfc0c1ad296299bc4424a13cc2c7c9808bf331c07041261d06c9b712.exe	27
PID 1164 wrote to memory of 1604	1164	b0243b6fdfc0c1ad296299bc4424a13cc2c7c9808bf331c07041261d06c9b712.exe	27
PID 1164 wrote to memory of 1604	1164	b0243b6fdfc0c1ad296299bc4424a13cc2c7c9808bf331c07041261d06c9b712.exe	27
PID 1164 wrote to memory of 1604	1164	b0243b6fdfc0c1ad296299bc4424a13cc2c7c9808bf331c07041261d06c9b712.exe	27
PID 1604 wrote to memory of 828	1604	cmd.exe	29
PID 1604 wrote to memory of 828	1604	cmd.exe	29
PID 1604 wrote to memory of 828	1604	cmd.exe	29
PID 1604 wrote to memory of 828	1604	cmd.exe	29
PID 1164 wrote to memory of 1152	1164	b0243b6fdfc0c1ad296299bc4424a13cc2c7c9808bf331c07041261d06c9b712.exe	30
PID 1164 wrote to memory of 1152	1164	b0243b6fdfc0c1ad296299bc4424a13cc2c7c9808bf331c07041261d06c9b712.exe	30
PID 1164 wrote to memory of 1152	1164	b0243b6fdfc0c1ad296299bc4424a13cc2c7c9808bf331c07041261d06c9b712.exe	30
PID 1164 wrote to memory of 1152	1164	b0243b6fdfc0c1ad296299bc4424a13cc2c7c9808bf331c07041261d06c9b712.exe	30
PID 1152 wrote to memory of 1588	1152	zTZLPwuOqJ.exe	31
PID 1152 wrote to memory of 1588	1152	zTZLPwuOqJ.exe	31
PID 1152 wrote to memory of 1588	1152	zTZLPwuOqJ.exe	31
PID 1152 wrote to memory of 1588	1152	zTZLPwuOqJ.exe	31
PID 1588 wrote to memory of 1880	1588	cmd.exe	33
PID 1588 wrote to memory of 1880	1588	cmd.exe	33
PID 1588 wrote to memory of 1880	1588	cmd.exe	33
PID 1588 wrote to memory of 1880	1588	cmd.exe	33
PID 1152 wrote to memory of 1884	1152	zTZLPwuOqJ.exe	34
PID 1152 wrote to memory of 1884	1152	zTZLPwuOqJ.exe	34
PID 1152 wrote to memory of 1884	1152	zTZLPwuOqJ.exe	34
PID 1152 wrote to memory of 1884	1152	zTZLPwuOqJ.exe	34
PID 1884 wrote to memory of 316	1884	tmp31E.tmp.exe	36
PID 1884 wrote to memory of 316	1884	tmp31E.tmp.exe	36
PID 1884 wrote to memory of 316	1884	tmp31E.tmp.exe	36
PID 1884 wrote to memory of 316	1884	tmp31E.tmp.exe	36

C:\Users\Admin\AppData\Local\Temp\b0243b6fdfc0c1ad296299bc4424a13cc2c7c9808bf331c07041261d06c9b712.exe
"C:\Users\Admin\AppData\Local\Temp\b0243b6fdfc0c1ad296299bc4424a13cc2c7c9808bf331c07041261d06c9b712.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1164
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c PING 8.8.8.8 -n 10 > nul
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1604
- - C:\Windows\SysWOW64\PING.EXE
    PING 8.8.8.8 -n 10
    3⤵
    - Runs ping.exe
    PID:828
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\zTZLPwuOqJ.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\zTZLPwuOqJ.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1152
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c PING 8.8.8.8 -n 10 > nul
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1588
  - - C:\Windows\SysWOW64\PING.EXE
      PING 8.8.8.8 -n 10
      4⤵
      Runs ping.exe
      PID:1880
- - C:\Users\Admin\AppData\Local\Temp\tmp31E.tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp31E.tmp.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:1884
  - - C:\ProgramData\517631\server.exe
      "C:\ProgramData\517631\server.exe"
      4⤵
      Modifies WinLogon for persistence
      Executes dropped EXE
      Adds Run key to start application
      Drops file in System32 directory
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:316

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\517631\server.exe

Filesize
222KB

MD5
a40fe2a8fd22909db1e64d47820f7e7a

SHA1
319648067cd94d2144209afc54e1f941fffa66d1

SHA256
29fe5df448b8b33fdf3c210e21a2ba8bcba016023b8c0c3f49e531430edf17bc

SHA512
520450105f630f9b78fbb319720a430efc95b569e0eef598fc5ab718a90093adadf13b6badc7c0a68f108a2861581b44b3c29e76355e7bea017b20272aa269e7

Download Submit
C:\ProgramData\517631\server.exe

Filesize
222KB

MD5
a40fe2a8fd22909db1e64d47820f7e7a

SHA1
319648067cd94d2144209afc54e1f941fffa66d1

SHA256
29fe5df448b8b33fdf3c210e21a2ba8bcba016023b8c0c3f49e531430edf17bc

SHA512
520450105f630f9b78fbb319720a430efc95b569e0eef598fc5ab718a90093adadf13b6badc7c0a68f108a2861581b44b3c29e76355e7bea017b20272aa269e7

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp31E.tmp.exe

Filesize
222KB

MD5
a40fe2a8fd22909db1e64d47820f7e7a

SHA1
319648067cd94d2144209afc54e1f941fffa66d1

SHA256
29fe5df448b8b33fdf3c210e21a2ba8bcba016023b8c0c3f49e531430edf17bc

SHA512
520450105f630f9b78fbb319720a430efc95b569e0eef598fc5ab718a90093adadf13b6badc7c0a68f108a2861581b44b3c29e76355e7bea017b20272aa269e7

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp31E.tmp.exe

Filesize
222KB

MD5
a40fe2a8fd22909db1e64d47820f7e7a

SHA1
319648067cd94d2144209afc54e1f941fffa66d1

SHA256
29fe5df448b8b33fdf3c210e21a2ba8bcba016023b8c0c3f49e531430edf17bc

SHA512
520450105f630f9b78fbb319720a430efc95b569e0eef598fc5ab718a90093adadf13b6badc7c0a68f108a2861581b44b3c29e76355e7bea017b20272aa269e7

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\zTZLPwuOqJ.exe

Filesize
269KB

MD5
ff3be7a2ec1d2452f08de1feec2deb2f

SHA1
b842e504a0e84e44ae7b876f3543cf6f2dcae6a9

SHA256
b0243b6fdfc0c1ad296299bc4424a13cc2c7c9808bf331c07041261d06c9b712

SHA512
14469a2bd770cb38f29c8db885ce4ddc10b32cbf64fb62787570cd1347d22d6c0bfb589f3524948ab50c556783970666331ce722a72770c8a7b5225cb7117db8

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\zTZLPwuOqJ.exe

Filesize
269KB

MD5
ff3be7a2ec1d2452f08de1feec2deb2f

SHA1
b842e504a0e84e44ae7b876f3543cf6f2dcae6a9

SHA256
b0243b6fdfc0c1ad296299bc4424a13cc2c7c9808bf331c07041261d06c9b712

SHA512
14469a2bd770cb38f29c8db885ce4ddc10b32cbf64fb62787570cd1347d22d6c0bfb589f3524948ab50c556783970666331ce722a72770c8a7b5225cb7117db8

Download Submit
\ProgramData\517631\server.exe

Filesize
222KB

MD5
a40fe2a8fd22909db1e64d47820f7e7a

SHA1
319648067cd94d2144209afc54e1f941fffa66d1

SHA256
29fe5df448b8b33fdf3c210e21a2ba8bcba016023b8c0c3f49e531430edf17bc

SHA512
520450105f630f9b78fbb319720a430efc95b569e0eef598fc5ab718a90093adadf13b6badc7c0a68f108a2861581b44b3c29e76355e7bea017b20272aa269e7

Download Submit
\ProgramData\517631\server.exe

Filesize
222KB

MD5
a40fe2a8fd22909db1e64d47820f7e7a

SHA1
319648067cd94d2144209afc54e1f941fffa66d1

SHA256
29fe5df448b8b33fdf3c210e21a2ba8bcba016023b8c0c3f49e531430edf17bc

SHA512
520450105f630f9b78fbb319720a430efc95b569e0eef598fc5ab718a90093adadf13b6badc7c0a68f108a2861581b44b3c29e76355e7bea017b20272aa269e7

Download Submit
\Users\Admin\AppData\Local\Temp\tmp31E.tmp.exe

Filesize
222KB

MD5
a40fe2a8fd22909db1e64d47820f7e7a

SHA1
319648067cd94d2144209afc54e1f941fffa66d1

SHA256
29fe5df448b8b33fdf3c210e21a2ba8bcba016023b8c0c3f49e531430edf17bc

SHA512
520450105f630f9b78fbb319720a430efc95b569e0eef598fc5ab718a90093adadf13b6badc7c0a68f108a2861581b44b3c29e76355e7bea017b20272aa269e7

Download Submit
\Users\Admin\AppData\Local\Temp\tmp31E.tmp.exe

Filesize
222KB

MD5
a40fe2a8fd22909db1e64d47820f7e7a

SHA1
319648067cd94d2144209afc54e1f941fffa66d1

SHA256
29fe5df448b8b33fdf3c210e21a2ba8bcba016023b8c0c3f49e531430edf17bc

SHA512
520450105f630f9b78fbb319720a430efc95b569e0eef598fc5ab718a90093adadf13b6badc7c0a68f108a2861581b44b3c29e76355e7bea017b20272aa269e7

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\zTZLPwuOqJ.exe

Filesize
269KB

MD5
ff3be7a2ec1d2452f08de1feec2deb2f

SHA1
b842e504a0e84e44ae7b876f3543cf6f2dcae6a9

SHA256
b0243b6fdfc0c1ad296299bc4424a13cc2c7c9808bf331c07041261d06c9b712

SHA512
14469a2bd770cb38f29c8db885ce4ddc10b32cbf64fb62787570cd1347d22d6c0bfb589f3524948ab50c556783970666331ce722a72770c8a7b5225cb7117db8

Download Submit
memory/316-85-0x00000000740E0000-0x000000007468B000-memory.dmp

Filesize
5.7MB

Download
memory/316-83-0x00000000740E0000-0x000000007468B000-memory.dmp

Filesize
5.7MB

Download
memory/1152-75-0x00000000740E0000-0x000000007468B000-memory.dmp

Filesize
5.7MB

Download
memory/1152-68-0x00000000740E0000-0x000000007468B000-memory.dmp

Filesize
5.7MB

Download
memory/1164-58-0x00000000740E0000-0x000000007468B000-memory.dmp

Filesize
5.7MB

Download
memory/1164-64-0x00000000740E0000-0x000000007468B000-memory.dmp

Filesize
5.7MB

Download
memory/1164-55-0x00000000740E0000-0x000000007468B000-memory.dmp

Filesize
5.7MB

Download
memory/1164-54-0x0000000075C61000-0x0000000075C63000-memory.dmp

Filesize
8KB

Download
memory/1884-84-0x00000000740E0000-0x000000007468B000-memory.dmp

Filesize
5.7MB

Download
memory/1884-76-0x00000000740E0000-0x000000007468B000-memory.dmp

Filesize
5.7MB

Download
memory/1884-86-0x00000000740E0000-0x000000007468B000-memory.dmp

Filesize
5.7MB

Download