luminosity | 66d60762a72239205e4dc4e2c3d2e662ae6462b9d675c094e5a6d771fe11a809

General

Target

66d60762a72239205e4dc4e2c3d2e662ae6462b9d675c094e5a6d771fe11a809.exe
Size

222KB
MD5

88a5eebc648221d89ee054dd1df207be
SHA1

ae66fdee2af58dca79f43e598421af3fa407bfab
SHA256

66d60762a72239205e4dc4e2c3d2e662ae6462b9d675c094e5a6d771fe11a809
SHA512

d306013c406131cdc3623322e37f0ef2f98afa023444c2d5fd30a69813524169264aa85eb8781e8fa207c3858afbd6c8093fb77385c71fe730ee6ac3d8c7dbb9
SSDEEP

3072:8U4f+fkjZt7fF0L2vMCDiu0Y8RxwLRMcR9aBeWvfxLWDwMeWJ2NJucbPvJ1nlYZC:81i+f3uBmLbR9JWJWtJYJuEvPr

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\""	defup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\244647\\defup.exe\""	defup.exe

Executes dropped EXE 1 IoCs

pid	Process
964	defup.exe

Loads dropped DLL 2 IoCs

pid	Process
560	66d60762a72239205e4dc4e2c3d2e662ae6462b9d675c094e5a6d771fe11a809.exe
560	66d60762a72239205e4dc4e2c3d2e662ae6462b9d675c094e5a6d771fe11a809.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-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Windows Defender Updater = "\"C:\\ProgramData\\244647\\defup.exe\""	defup.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\clientsvr.exe	defup.exe
File opened for modification	C:\Windows\SysWOW64\clientsvr.exe	defup.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 5 IoCs

pid	Process
964	defup.exe
964	defup.exe
964	defup.exe
964	defup.exe
964	defup.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
560	66d60762a72239205e4dc4e2c3d2e662ae6462b9d675c094e5a6d771fe11a809.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	964	defup.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
964	defup.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 560 wrote to memory of 964	560	66d60762a72239205e4dc4e2c3d2e662ae6462b9d675c094e5a6d771fe11a809.exe	29
PID 560 wrote to memory of 964	560	66d60762a72239205e4dc4e2c3d2e662ae6462b9d675c094e5a6d771fe11a809.exe	29
PID 560 wrote to memory of 964	560	66d60762a72239205e4dc4e2c3d2e662ae6462b9d675c094e5a6d771fe11a809.exe	29
PID 560 wrote to memory of 964	560	66d60762a72239205e4dc4e2c3d2e662ae6462b9d675c094e5a6d771fe11a809.exe	29

C:\Users\Admin\AppData\Local\Temp\66d60762a72239205e4dc4e2c3d2e662ae6462b9d675c094e5a6d771fe11a809.exe
"C:\Users\Admin\AppData\Local\Temp\66d60762a72239205e4dc4e2c3d2e662ae6462b9d675c094e5a6d771fe11a809.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:560
- C:\ProgramData\244647\defup.exe
  "C:\ProgramData\244647\defup.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:964

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\244647\defup.exe

Filesize
222KB

MD5
88a5eebc648221d89ee054dd1df207be

SHA1
ae66fdee2af58dca79f43e598421af3fa407bfab

SHA256
66d60762a72239205e4dc4e2c3d2e662ae6462b9d675c094e5a6d771fe11a809

SHA512
d306013c406131cdc3623322e37f0ef2f98afa023444c2d5fd30a69813524169264aa85eb8781e8fa207c3858afbd6c8093fb77385c71fe730ee6ac3d8c7dbb9

Download Submit
C:\ProgramData\244647\defup.exe

Filesize
222KB

MD5
88a5eebc648221d89ee054dd1df207be

SHA1
ae66fdee2af58dca79f43e598421af3fa407bfab

SHA256
66d60762a72239205e4dc4e2c3d2e662ae6462b9d675c094e5a6d771fe11a809

SHA512
d306013c406131cdc3623322e37f0ef2f98afa023444c2d5fd30a69813524169264aa85eb8781e8fa207c3858afbd6c8093fb77385c71fe730ee6ac3d8c7dbb9

Download Submit
\ProgramData\244647\defup.exe

Filesize
222KB

MD5
88a5eebc648221d89ee054dd1df207be

SHA1
ae66fdee2af58dca79f43e598421af3fa407bfab

SHA256
66d60762a72239205e4dc4e2c3d2e662ae6462b9d675c094e5a6d771fe11a809

SHA512
d306013c406131cdc3623322e37f0ef2f98afa023444c2d5fd30a69813524169264aa85eb8781e8fa207c3858afbd6c8093fb77385c71fe730ee6ac3d8c7dbb9

Download Submit
\ProgramData\244647\defup.exe

Filesize
222KB

MD5
88a5eebc648221d89ee054dd1df207be

SHA1
ae66fdee2af58dca79f43e598421af3fa407bfab

SHA256
66d60762a72239205e4dc4e2c3d2e662ae6462b9d675c094e5a6d771fe11a809

SHA512
d306013c406131cdc3623322e37f0ef2f98afa023444c2d5fd30a69813524169264aa85eb8781e8fa207c3858afbd6c8093fb77385c71fe730ee6ac3d8c7dbb9

Download Submit
memory/560-54-0x0000000076391000-0x0000000076393000-memory.dmp

Filesize
8KB

Download
memory/560-55-0x00000000745A0000-0x0000000074B4B000-memory.dmp

Filesize
5.7MB

Download
memory/560-63-0x00000000745A0000-0x0000000074B4B000-memory.dmp

Filesize
5.7MB

Download
memory/560-65-0x00000000745A0000-0x0000000074B4B000-memory.dmp

Filesize
5.7MB

Download
memory/964-62-0x00000000745A0000-0x0000000074B4B000-memory.dmp

Filesize
5.7MB

Download
memory/964-64-0x00000000745A0000-0x0000000074B4B000-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