luminosity | 9f59250b4a03bce4e6aca0b006b5616bd3a858dd3ed7dfb6dddc28c1ff4cf3df

General

Target

9f59250b4a03bce4e6aca0b006b5616bd3a858dd3ed7dfb6dddc28c1ff4cf3df.exe
Size

248KB
MD5

4ac08c2772f3b5f15124e72b7a8bd480
SHA1

9816c7327db73b374bd5f215c35db4f4e0c58d10
SHA256

9f59250b4a03bce4e6aca0b006b5616bd3a858dd3ed7dfb6dddc28c1ff4cf3df
SHA512

746d6be247dffa98359fdbe4c0c7be05493480d6668c905bb19c2249eac8bd61e3248b7d2abcdadf47897e45310181d08a4976eca7142f46aa9cd89982fd0185
SSDEEP

3072:KU4f+fkjZt7fF0L2vMCDiu0Y8RxwLRMcR9aBeWvfxLWDw0eWJ2NJucbPvJ1nlYZC:K1i+f3uBmLbR9JWJWZJYJuEvPr

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\""	repair.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\546375\\repair.exe\""	repair.exe

Executes dropped EXE 1 IoCs

pid	Process
1500	repair.exe

Loads dropped DLL 2 IoCs

pid	Process
1720	9f59250b4a03bce4e6aca0b006b5616bd3a858dd3ed7dfb6dddc28c1ff4cf3df.exe
1720	9f59250b4a03bce4e6aca0b006b5616bd3a858dd3ed7dfb6dddc28c1ff4cf3df.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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Mechanic = "\"C:\\ProgramData\\546375\\repair.exe\""	repair.exe

Drops file in System32 directory 2 IoCs

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

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 3 IoCs

pid	Process
1500	repair.exe
1500	repair.exe
1500	repair.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1720	9f59250b4a03bce4e6aca0b006b5616bd3a858dd3ed7dfb6dddc28c1ff4cf3df.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1500	repair.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1500	repair.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 1500	1720	9f59250b4a03bce4e6aca0b006b5616bd3a858dd3ed7dfb6dddc28c1ff4cf3df.exe	28
PID 1720 wrote to memory of 1500	1720	9f59250b4a03bce4e6aca0b006b5616bd3a858dd3ed7dfb6dddc28c1ff4cf3df.exe	28
PID 1720 wrote to memory of 1500	1720	9f59250b4a03bce4e6aca0b006b5616bd3a858dd3ed7dfb6dddc28c1ff4cf3df.exe	28
PID 1720 wrote to memory of 1500	1720	9f59250b4a03bce4e6aca0b006b5616bd3a858dd3ed7dfb6dddc28c1ff4cf3df.exe	28

C:\Users\Admin\AppData\Local\Temp\9f59250b4a03bce4e6aca0b006b5616bd3a858dd3ed7dfb6dddc28c1ff4cf3df.exe
"C:\Users\Admin\AppData\Local\Temp\9f59250b4a03bce4e6aca0b006b5616bd3a858dd3ed7dfb6dddc28c1ff4cf3df.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1720
- C:\ProgramData\546375\repair.exe
  "C:\ProgramData\546375\repair.exe"
  2⤵
  - 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:1500

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

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Downloads

C:\ProgramData\546375\repair.exe

Filesize
248KB

MD5
4ac08c2772f3b5f15124e72b7a8bd480

SHA1
9816c7327db73b374bd5f215c35db4f4e0c58d10

SHA256
9f59250b4a03bce4e6aca0b006b5616bd3a858dd3ed7dfb6dddc28c1ff4cf3df

SHA512
746d6be247dffa98359fdbe4c0c7be05493480d6668c905bb19c2249eac8bd61e3248b7d2abcdadf47897e45310181d08a4976eca7142f46aa9cd89982fd0185

Download Submit
C:\ProgramData\546375\repair.exe

Filesize
248KB

MD5
4ac08c2772f3b5f15124e72b7a8bd480

SHA1
9816c7327db73b374bd5f215c35db4f4e0c58d10

SHA256
9f59250b4a03bce4e6aca0b006b5616bd3a858dd3ed7dfb6dddc28c1ff4cf3df

SHA512
746d6be247dffa98359fdbe4c0c7be05493480d6668c905bb19c2249eac8bd61e3248b7d2abcdadf47897e45310181d08a4976eca7142f46aa9cd89982fd0185

Download Submit
\ProgramData\546375\repair.exe

Filesize
248KB

MD5
4ac08c2772f3b5f15124e72b7a8bd480

SHA1
9816c7327db73b374bd5f215c35db4f4e0c58d10

SHA256
9f59250b4a03bce4e6aca0b006b5616bd3a858dd3ed7dfb6dddc28c1ff4cf3df

SHA512
746d6be247dffa98359fdbe4c0c7be05493480d6668c905bb19c2249eac8bd61e3248b7d2abcdadf47897e45310181d08a4976eca7142f46aa9cd89982fd0185

Download Submit
\ProgramData\546375\repair.exe

Filesize
248KB

MD5
4ac08c2772f3b5f15124e72b7a8bd480

SHA1
9816c7327db73b374bd5f215c35db4f4e0c58d10

SHA256
9f59250b4a03bce4e6aca0b006b5616bd3a858dd3ed7dfb6dddc28c1ff4cf3df

SHA512
746d6be247dffa98359fdbe4c0c7be05493480d6668c905bb19c2249eac8bd61e3248b7d2abcdadf47897e45310181d08a4976eca7142f46aa9cd89982fd0185

Download Submit
memory/1500-62-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/1500-64-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/1720-54-0x00000000757A1000-0x00000000757A3000-memory.dmp

Filesize
8KB

Download
memory/1720-55-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/1720-63-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/1720-65-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads