luminosity | 82fb7cce94762a644bc7e320b1bde14f693c7e16624a84592f6ea8b519d0c110

General

Target

82fb7cce94762a644bc7e320b1bde14f693c7e16624a84592f6ea8b519d0c110.exe
Size

222KB
MD5

7d31c5bae564a40de802cc01c4f53b17
SHA1

fea43a3a19fbd0024c7b09b575f0f7e14fbeb790
SHA256

82fb7cce94762a644bc7e320b1bde14f693c7e16624a84592f6ea8b519d0c110
SHA512

ec194b90dbdf610e338139cb84961ea1fb46cbff5a4132125d9041b9559e054c74b37889f550769d8910f34cf95a8ae0826c8b591bf99932b45a584bcf82781f
SSDEEP

3072:8U4f+fkjZt7fF0L2vMCDiu0Y8RxwLRMcR9aBeWvfxLWDwUeWJ2NJucbPvJ1nlYZC:81i+f3uBmLbR9JWJWdJYJuEvPr

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\""	client.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\\158271\\client.exe\""	client.exe

Executes dropped EXE 1 IoCs

pid	Process
1980	client.exe

Loads dropped DLL 2 IoCs

pid	Process
2004	82fb7cce94762a644bc7e320b1bde14f693c7e16624a84592f6ea8b519d0c110.exe
2004	82fb7cce94762a644bc7e320b1bde14f693c7e16624a84592f6ea8b519d0c110.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\Luminosity Client = "\"C:\\ProgramData\\158271\\client.exe\""	client.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\clientsvr.exe	client.exe
File created	C:\Windows\SysWOW64\clientsvr.exe	client.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
1980	client.exe
1980	client.exe
1980	client.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2004	82fb7cce94762a644bc7e320b1bde14f693c7e16624a84592f6ea8b519d0c110.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1980	client.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1980	client.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 1980	2004	82fb7cce94762a644bc7e320b1bde14f693c7e16624a84592f6ea8b519d0c110.exe	27
PID 2004 wrote to memory of 1980	2004	82fb7cce94762a644bc7e320b1bde14f693c7e16624a84592f6ea8b519d0c110.exe	27
PID 2004 wrote to memory of 1980	2004	82fb7cce94762a644bc7e320b1bde14f693c7e16624a84592f6ea8b519d0c110.exe	27
PID 2004 wrote to memory of 1980	2004	82fb7cce94762a644bc7e320b1bde14f693c7e16624a84592f6ea8b519d0c110.exe	27

C:\Users\Admin\AppData\Local\Temp\82fb7cce94762a644bc7e320b1bde14f693c7e16624a84592f6ea8b519d0c110.exe
"C:\Users\Admin\AppData\Local\Temp\82fb7cce94762a644bc7e320b1bde14f693c7e16624a84592f6ea8b519d0c110.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2004
- C:\ProgramData\158271\client.exe
  "C:\ProgramData\158271\client.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:1980

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\158271\client.exe

Filesize
222KB

MD5
7d31c5bae564a40de802cc01c4f53b17

SHA1
fea43a3a19fbd0024c7b09b575f0f7e14fbeb790

SHA256
82fb7cce94762a644bc7e320b1bde14f693c7e16624a84592f6ea8b519d0c110

SHA512
ec194b90dbdf610e338139cb84961ea1fb46cbff5a4132125d9041b9559e054c74b37889f550769d8910f34cf95a8ae0826c8b591bf99932b45a584bcf82781f

Download Submit
C:\ProgramData\158271\client.exe

Filesize
222KB

MD5
7d31c5bae564a40de802cc01c4f53b17

SHA1
fea43a3a19fbd0024c7b09b575f0f7e14fbeb790

SHA256
82fb7cce94762a644bc7e320b1bde14f693c7e16624a84592f6ea8b519d0c110

SHA512
ec194b90dbdf610e338139cb84961ea1fb46cbff5a4132125d9041b9559e054c74b37889f550769d8910f34cf95a8ae0826c8b591bf99932b45a584bcf82781f

Download Submit
\ProgramData\158271\client.exe

Filesize
222KB

MD5
7d31c5bae564a40de802cc01c4f53b17

SHA1
fea43a3a19fbd0024c7b09b575f0f7e14fbeb790

SHA256
82fb7cce94762a644bc7e320b1bde14f693c7e16624a84592f6ea8b519d0c110

SHA512
ec194b90dbdf610e338139cb84961ea1fb46cbff5a4132125d9041b9559e054c74b37889f550769d8910f34cf95a8ae0826c8b591bf99932b45a584bcf82781f

Download Submit
\ProgramData\158271\client.exe

Filesize
222KB

MD5
7d31c5bae564a40de802cc01c4f53b17

SHA1
fea43a3a19fbd0024c7b09b575f0f7e14fbeb790

SHA256
82fb7cce94762a644bc7e320b1bde14f693c7e16624a84592f6ea8b519d0c110

SHA512
ec194b90dbdf610e338139cb84961ea1fb46cbff5a4132125d9041b9559e054c74b37889f550769d8910f34cf95a8ae0826c8b591bf99932b45a584bcf82781f

Download Submit
memory/1980-63-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/1980-64-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2004-54-0x0000000075FC1000-0x0000000075FC3000-memory.dmp

Filesize
8KB

Download
memory/2004-55-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2004-62-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2004-65-0x0000000074200000-0x00000000747AB000-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