luminosity | 4cf17e9cb40b51bfc98b414c42fa3692c032b3b19b0564c4a64153a1f6cdb696

General

Target

4cf17e9cb40b51bfc98b414c42fa3692c032b3b19b0564c4a64153a1f6cdb696.exe
Size

477KB
MD5

4fe45ecf79d7897c852382f5dc547ce0
SHA1

f0b4abee37a76b55f0a392690cc28a4ecee33dc8
SHA256

4cf17e9cb40b51bfc98b414c42fa3692c032b3b19b0564c4a64153a1f6cdb696
SHA512

4ba779a7351ad92d3e29d2bf36dc936c300b88adf46f93aae9ae2528be1af6557680057cdcb142853ee02e7382eb53b02e6b0cb4c7325c4a347f77f410b18f8b
SSDEEP

12288:BNvnd35ukmZgSVJgvvFkrxFE74st49Vohr/49P4iK70djb14:Ph5ukm04sVhr/49PrKD

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\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\200543\\svchost.exe\""	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,\"C:\\Windows\\system32\\clientsvr.exe\""	svchost.exe

Executes dropped EXE 2 IoCs

pid	Process
552	out.exe
836	svchost.exe

Loads dropped DLL 4 IoCs

pid	Process
2028	4cf17e9cb40b51bfc98b414c42fa3692c032b3b19b0564c4a64153a1f6cdb696.exe
2028	4cf17e9cb40b51bfc98b414c42fa3692c032b3b19b0564c4a64153a1f6cdb696.exe
552	out.exe
552	out.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\Processus h?te pour les services Windows = "\"C:\\ProgramData\\200543\\svchost.exe\""	svchost.exe

Drops file in System32 directory 2 IoCs

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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	836	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
836	svchost.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2028 wrote to memory of 552	2028	4cf17e9cb40b51bfc98b414c42fa3692c032b3b19b0564c4a64153a1f6cdb696.exe	27
PID 2028 wrote to memory of 552	2028	4cf17e9cb40b51bfc98b414c42fa3692c032b3b19b0564c4a64153a1f6cdb696.exe	27
PID 2028 wrote to memory of 552	2028	4cf17e9cb40b51bfc98b414c42fa3692c032b3b19b0564c4a64153a1f6cdb696.exe	27
PID 2028 wrote to memory of 552	2028	4cf17e9cb40b51bfc98b414c42fa3692c032b3b19b0564c4a64153a1f6cdb696.exe	27
PID 552 wrote to memory of 836	552	out.exe	29
PID 552 wrote to memory of 836	552	out.exe	29
PID 552 wrote to memory of 836	552	out.exe	29
PID 552 wrote to memory of 836	552	out.exe	29

C:\Users\Admin\AppData\Local\Temp\4cf17e9cb40b51bfc98b414c42fa3692c032b3b19b0564c4a64153a1f6cdb696.exe
"C:\Users\Admin\AppData\Local\Temp\4cf17e9cb40b51bfc98b414c42fa3692c032b3b19b0564c4a64153a1f6cdb696.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Users\Admin\AppData\Local\Temp\out.exe
  "C:\Users\Admin\AppData\Local\Temp\out.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:552
- - C:\ProgramData\200543\svchost.exe
    "C:\ProgramData\200543\svchost.exe"
    3⤵
    - 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:836

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

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Downloads

C:\ProgramData\200543\svchost.exe

Filesize
222KB

MD5
731df28da903fdab197f766ab0339b65

SHA1
3ee6bba83a0842404ccd52ca21972bec3b398c32

SHA256
e882bbfe4f62dafc8075b6812749b6de656b4b90854eb6faf8bb5c9dccf13cb5

SHA512
94957325766dbb48145713715d0e2918645920379290273df1a37eb7f679ba80183bf27af94824d19ae2cef3c28d194948693142ce04b71891bba1a74744df5b

Download Submit
C:\ProgramData\200543\svchost.exe

Filesize
222KB

MD5
731df28da903fdab197f766ab0339b65

SHA1
3ee6bba83a0842404ccd52ca21972bec3b398c32

SHA256
e882bbfe4f62dafc8075b6812749b6de656b4b90854eb6faf8bb5c9dccf13cb5

SHA512
94957325766dbb48145713715d0e2918645920379290273df1a37eb7f679ba80183bf27af94824d19ae2cef3c28d194948693142ce04b71891bba1a74744df5b

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

Filesize
222KB

MD5
731df28da903fdab197f766ab0339b65

SHA1
3ee6bba83a0842404ccd52ca21972bec3b398c32

SHA256
e882bbfe4f62dafc8075b6812749b6de656b4b90854eb6faf8bb5c9dccf13cb5

SHA512
94957325766dbb48145713715d0e2918645920379290273df1a37eb7f679ba80183bf27af94824d19ae2cef3c28d194948693142ce04b71891bba1a74744df5b

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

Filesize
222KB

MD5
731df28da903fdab197f766ab0339b65

SHA1
3ee6bba83a0842404ccd52ca21972bec3b398c32

SHA256
e882bbfe4f62dafc8075b6812749b6de656b4b90854eb6faf8bb5c9dccf13cb5

SHA512
94957325766dbb48145713715d0e2918645920379290273df1a37eb7f679ba80183bf27af94824d19ae2cef3c28d194948693142ce04b71891bba1a74744df5b

Download Submit
\ProgramData\200543\svchost.exe

Filesize
222KB

MD5
731df28da903fdab197f766ab0339b65

SHA1
3ee6bba83a0842404ccd52ca21972bec3b398c32

SHA256
e882bbfe4f62dafc8075b6812749b6de656b4b90854eb6faf8bb5c9dccf13cb5

SHA512
94957325766dbb48145713715d0e2918645920379290273df1a37eb7f679ba80183bf27af94824d19ae2cef3c28d194948693142ce04b71891bba1a74744df5b

Download Submit
\ProgramData\200543\svchost.exe

Filesize
222KB

MD5
731df28da903fdab197f766ab0339b65

SHA1
3ee6bba83a0842404ccd52ca21972bec3b398c32

SHA256
e882bbfe4f62dafc8075b6812749b6de656b4b90854eb6faf8bb5c9dccf13cb5

SHA512
94957325766dbb48145713715d0e2918645920379290273df1a37eb7f679ba80183bf27af94824d19ae2cef3c28d194948693142ce04b71891bba1a74744df5b

Download Submit
\Users\Admin\AppData\Local\Temp\out.exe

Filesize
222KB

MD5
731df28da903fdab197f766ab0339b65

SHA1
3ee6bba83a0842404ccd52ca21972bec3b398c32

SHA256
e882bbfe4f62dafc8075b6812749b6de656b4b90854eb6faf8bb5c9dccf13cb5

SHA512
94957325766dbb48145713715d0e2918645920379290273df1a37eb7f679ba80183bf27af94824d19ae2cef3c28d194948693142ce04b71891bba1a74744df5b

Download Submit
\Users\Admin\AppData\Local\Temp\out.exe

Filesize
222KB

MD5
731df28da903fdab197f766ab0339b65

SHA1
3ee6bba83a0842404ccd52ca21972bec3b398c32

SHA256
e882bbfe4f62dafc8075b6812749b6de656b4b90854eb6faf8bb5c9dccf13cb5

SHA512
94957325766dbb48145713715d0e2918645920379290273df1a37eb7f679ba80183bf27af94824d19ae2cef3c28d194948693142ce04b71891bba1a74744df5b

Download Submit
memory/552-62-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/552-70-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/552-72-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/836-69-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/836-71-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/2028-61-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/2028-54-0x00000000759F1000-0x00000000759F3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads