luminosity | 903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6

General

Target

903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe
Size

340KB
MD5

9a75c88a2ff5bb528cda6020d33cff63
SHA1

07ffcc093be2fd45e0c3d253b12d068d5cb888db
SHA256

903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6
SHA512

b0cfaef076cf0aae7f94681ea9a3ad7050a378eb2a0c7b0d7803b7a93dd6d681602045e6a6cc987b56df2e805c348aa37b8619210ce2404bbda0e2dd91df8b90
SSDEEP

6144:hEWv7VO2OT9r+Mh5FOQLh2zhaK0K3hdt9GDwg2aUfydY+C2nP:hEWv7VO2OTjvRLSazK3hdVcUfyfC2nP

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\""	helper.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\481440\\helper.exe\""	helper.exe

Executes dropped EXE 2 IoCs

pid	Process
708	helper.exe
1184	helper.exe

Loads dropped DLL 2 IoCs

pid	Process
240	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe
240	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Computer Helper = "\"C:\\ProgramData\\481440\\helper.exe\""	helper.exe

Drops file in System32 directory 2 IoCs

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

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1960 set thread context of 240	1960	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe	29
PID 708 set thread context of 1184	708	helper.exe	32

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1960	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe
1184	helper.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
240	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1960	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe
Token: SeDebugPrivilege	708	helper.exe
Token: SeDebugPrivilege	1184	helper.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1184	helper.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1960 wrote to memory of 1684	1960	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe	28
PID 1960 wrote to memory of 1684	1960	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe	28
PID 1960 wrote to memory of 1684	1960	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe	28
PID 1960 wrote to memory of 1684	1960	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe	28
PID 1960 wrote to memory of 240	1960	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe	29
PID 1960 wrote to memory of 240	1960	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe	29
PID 1960 wrote to memory of 240	1960	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe	29
PID 1960 wrote to memory of 240	1960	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe	29
PID 1960 wrote to memory of 240	1960	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe	29
PID 1960 wrote to memory of 240	1960	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe	29
PID 1960 wrote to memory of 240	1960	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe	29
PID 1960 wrote to memory of 240	1960	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe	29
PID 1960 wrote to memory of 240	1960	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe	29
PID 240 wrote to memory of 708	240	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe	31
PID 240 wrote to memory of 708	240	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe	31
PID 240 wrote to memory of 708	240	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe	31
PID 240 wrote to memory of 708	240	903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe	31
PID 708 wrote to memory of 1184	708	helper.exe	32
PID 708 wrote to memory of 1184	708	helper.exe	32
PID 708 wrote to memory of 1184	708	helper.exe	32
PID 708 wrote to memory of 1184	708	helper.exe	32
PID 708 wrote to memory of 1184	708	helper.exe	32
PID 708 wrote to memory of 1184	708	helper.exe	32
PID 708 wrote to memory of 1184	708	helper.exe	32
PID 708 wrote to memory of 1184	708	helper.exe	32
PID 708 wrote to memory of 1184	708	helper.exe	32

C:\Users\Admin\AppData\Local\Temp\903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe
"C:\Users\Admin\AppData\Local\Temp\903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1960
- C:\Users\Admin\AppData\Local\Temp\903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe
  "C:\Users\Admin\AppData\Local\Temp\903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe"
  2⤵
  PID:1684
- C:\Users\Admin\AppData\Local\Temp\903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe
  "C:\Users\Admin\AppData\Local\Temp\903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:240
- - C:\ProgramData\481440\helper.exe
    "C:\ProgramData\481440\helper.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:708
  - - C:\ProgramData\481440\helper.exe
      "C:\ProgramData\481440\helper.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:1184

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\481440\helper.exe

Filesize
340KB

MD5
9a75c88a2ff5bb528cda6020d33cff63

SHA1
07ffcc093be2fd45e0c3d253b12d068d5cb888db

SHA256
903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6

SHA512
b0cfaef076cf0aae7f94681ea9a3ad7050a378eb2a0c7b0d7803b7a93dd6d681602045e6a6cc987b56df2e805c348aa37b8619210ce2404bbda0e2dd91df8b90

Download Submit
C:\ProgramData\481440\helper.exe

Filesize
340KB

MD5
9a75c88a2ff5bb528cda6020d33cff63

SHA1
07ffcc093be2fd45e0c3d253b12d068d5cb888db

SHA256
903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6

SHA512
b0cfaef076cf0aae7f94681ea9a3ad7050a378eb2a0c7b0d7803b7a93dd6d681602045e6a6cc987b56df2e805c348aa37b8619210ce2404bbda0e2dd91df8b90

Download Submit
C:\ProgramData\481440\helper.exe

Filesize
340KB

MD5
9a75c88a2ff5bb528cda6020d33cff63

SHA1
07ffcc093be2fd45e0c3d253b12d068d5cb888db

SHA256
903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6

SHA512
b0cfaef076cf0aae7f94681ea9a3ad7050a378eb2a0c7b0d7803b7a93dd6d681602045e6a6cc987b56df2e805c348aa37b8619210ce2404bbda0e2dd91df8b90

Download Submit
\ProgramData\481440\helper.exe

Filesize
340KB

MD5
9a75c88a2ff5bb528cda6020d33cff63

SHA1
07ffcc093be2fd45e0c3d253b12d068d5cb888db

SHA256
903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6

SHA512
b0cfaef076cf0aae7f94681ea9a3ad7050a378eb2a0c7b0d7803b7a93dd6d681602045e6a6cc987b56df2e805c348aa37b8619210ce2404bbda0e2dd91df8b90

Download Submit
\ProgramData\481440\helper.exe

Filesize
340KB

MD5
9a75c88a2ff5bb528cda6020d33cff63

SHA1
07ffcc093be2fd45e0c3d253b12d068d5cb888db

SHA256
903e30cf0d7a6373b3b2e0dd51e76f3c13af36528ff8c9278728b2298b16f8c6

SHA512
b0cfaef076cf0aae7f94681ea9a3ad7050a378eb2a0c7b0d7803b7a93dd6d681602045e6a6cc987b56df2e805c348aa37b8619210ce2404bbda0e2dd91df8b90

Download Submit
memory/240-63-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/240-60-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/240-65-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/240-94-0x0000000073E20000-0x00000000743CB000-memory.dmp

Filesize
5.7MB

Download
memory/240-68-0x0000000073E20000-0x00000000743CB000-memory.dmp

Filesize
5.7MB

Download
memory/240-58-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/240-91-0x0000000073E20000-0x00000000743CB000-memory.dmp

Filesize
5.7MB

Download
memory/240-56-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/240-55-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/708-88-0x0000000073E20000-0x00000000743CB000-memory.dmp

Filesize
5.7MB

Download
memory/708-92-0x0000000073E20000-0x00000000743CB000-memory.dmp

Filesize
5.7MB

Download
memory/1184-89-0x0000000073E20000-0x00000000743CB000-memory.dmp

Filesize
5.7MB

Download
memory/1184-93-0x0000000073E20000-0x00000000743CB000-memory.dmp

Filesize
5.7MB

Download
memory/1960-90-0x0000000073E20000-0x00000000743CB000-memory.dmp

Filesize
5.7MB

Download
memory/1960-54-0x0000000074AB1000-0x0000000074AB3000-memory.dmp

Filesize
8KB

Download
memory/1960-67-0x0000000073E20000-0x00000000743CB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads