luminosity | 5c0824f97919d56e61c2c5995208906dbdae45d402ba51041588fa9bc8d088cb

General

Target

5c0824f97919d56e61c2c5995208906dbdae45d402ba51041588fa9bc8d088cb.exe
Size

222KB
MD5

5841268e79074fa7aa7f5832442d2920
SHA1

7b8aeae3f2e5e31cdf14c78625ae08529ec75f82
SHA256

5c0824f97919d56e61c2c5995208906dbdae45d402ba51041588fa9bc8d088cb
SHA512

9bc9ef85208e9edd1a3a9f13c0fd00d71d0f288c329a6affbea28953ad21790120c4d6df1138d836bb09eea51de21d42c4cd7e2fab7bb651e129f5792a477201
SSDEEP

3072:8U4f+fkjZt7fF0L2vMCDiu0Y8RxwLRMcR9aBeWvfxLWDwueWJ2NJucbPvJ1nlYZC: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\""	client.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\852132\\client.exe\""	client.exe

Executes dropped EXE 1 IoCs

pid	Process
1452	client.exe

Loads dropped DLL 2 IoCs

pid	Process
1508	5c0824f97919d56e61c2c5995208906dbdae45d402ba51041588fa9bc8d088cb.exe
1508	5c0824f97919d56e61c2c5995208906dbdae45d402ba51041588fa9bc8d088cb.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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Luminosity Client = "\"C:\\ProgramData\\852132\\client.exe\""	client.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\clientsvr.exe	client.exe
File opened for modification	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 6 IoCs

pid	Process
1452	client.exe
1452	client.exe
1452	client.exe
1452	client.exe
1452	client.exe
1508	5c0824f97919d56e61c2c5995208906dbdae45d402ba51041588fa9bc8d088cb.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1508	5c0824f97919d56e61c2c5995208906dbdae45d402ba51041588fa9bc8d088cb.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1452	client.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1452	client.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 1452	1508	5c0824f97919d56e61c2c5995208906dbdae45d402ba51041588fa9bc8d088cb.exe	28
PID 1508 wrote to memory of 1452	1508	5c0824f97919d56e61c2c5995208906dbdae45d402ba51041588fa9bc8d088cb.exe	28
PID 1508 wrote to memory of 1452	1508	5c0824f97919d56e61c2c5995208906dbdae45d402ba51041588fa9bc8d088cb.exe	28
PID 1508 wrote to memory of 1452	1508	5c0824f97919d56e61c2c5995208906dbdae45d402ba51041588fa9bc8d088cb.exe	28
PID 1452 wrote to memory of 1508	1452	client.exe	14
PID 1452 wrote to memory of 1508	1452	client.exe	14
PID 1452 wrote to memory of 1508	1452	client.exe	14
PID 1452 wrote to memory of 1508	1452	client.exe	14
PID 1452 wrote to memory of 1508	1452	client.exe	14

C:\Users\Admin\AppData\Local\Temp\5c0824f97919d56e61c2c5995208906dbdae45d402ba51041588fa9bc8d088cb.exe
"C:\Users\Admin\AppData\Local\Temp\5c0824f97919d56e61c2c5995208906dbdae45d402ba51041588fa9bc8d088cb.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1508
- C:\ProgramData\852132\client.exe
  "C:\ProgramData\852132\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
  - Suspicious use of WriteProcessMemory
  PID:1452

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\852132\client.exe

Filesize
222KB

MD5
5841268e79074fa7aa7f5832442d2920

SHA1
7b8aeae3f2e5e31cdf14c78625ae08529ec75f82

SHA256
5c0824f97919d56e61c2c5995208906dbdae45d402ba51041588fa9bc8d088cb

SHA512
9bc9ef85208e9edd1a3a9f13c0fd00d71d0f288c329a6affbea28953ad21790120c4d6df1138d836bb09eea51de21d42c4cd7e2fab7bb651e129f5792a477201

Download Submit
C:\ProgramData\852132\client.exe

Filesize
222KB

MD5
5841268e79074fa7aa7f5832442d2920

SHA1
7b8aeae3f2e5e31cdf14c78625ae08529ec75f82

SHA256
5c0824f97919d56e61c2c5995208906dbdae45d402ba51041588fa9bc8d088cb

SHA512
9bc9ef85208e9edd1a3a9f13c0fd00d71d0f288c329a6affbea28953ad21790120c4d6df1138d836bb09eea51de21d42c4cd7e2fab7bb651e129f5792a477201

Download Submit
\ProgramData\852132\client.exe

Filesize
222KB

MD5
5841268e79074fa7aa7f5832442d2920

SHA1
7b8aeae3f2e5e31cdf14c78625ae08529ec75f82

SHA256
5c0824f97919d56e61c2c5995208906dbdae45d402ba51041588fa9bc8d088cb

SHA512
9bc9ef85208e9edd1a3a9f13c0fd00d71d0f288c329a6affbea28953ad21790120c4d6df1138d836bb09eea51de21d42c4cd7e2fab7bb651e129f5792a477201

Download Submit
\ProgramData\852132\client.exe

Filesize
222KB

MD5
5841268e79074fa7aa7f5832442d2920

SHA1
7b8aeae3f2e5e31cdf14c78625ae08529ec75f82

SHA256
5c0824f97919d56e61c2c5995208906dbdae45d402ba51041588fa9bc8d088cb

SHA512
9bc9ef85208e9edd1a3a9f13c0fd00d71d0f288c329a6affbea28953ad21790120c4d6df1138d836bb09eea51de21d42c4cd7e2fab7bb651e129f5792a477201

Download Submit
memory/1452-63-0x00000000740E0000-0x000000007468B000-memory.dmp

Filesize
5.7MB

Download
memory/1452-64-0x00000000740E0000-0x000000007468B000-memory.dmp

Filesize
5.7MB

Download
memory/1508-56-0x00000000740E0000-0x000000007468B000-memory.dmp

Filesize
5.7MB

Download
memory/1508-55-0x00000000740E0000-0x000000007468B000-memory.dmp

Filesize
5.7MB

Download
memory/1508-54-0x0000000074C91000-0x0000000074C93000-memory.dmp

Filesize
8KB

Download
memory/1508-65-0x00000000045F0000-0x0000000004607000-memory.dmp

Filesize
92KB

Download
memory/1508-66-0x00000000045F0000-0x0000000004607000-memory.dmp

Filesize
92KB

Download
memory/1508-68-0x00000000045F0000-0x0000000004607000-memory.dmp

Filesize
92KB

Download
memory/1508-71-0x00000000045F0000-0x0000000004607000-memory.dmp

Filesize
92KB

Download
memory/1508-74-0x00000000045F0000-0x0000000004607000-memory.dmp

Filesize
92KB

Download
memory/1508-75-0x00000000740E0000-0x000000007468B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads